En cours de modification Ma batterie iPhone se décharge vite

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	[title\|iPhone Battery Draining Fast]

-	[summary]~~Your~~ iPhone battery is draining rapidly ~~or more quickly than~~ you ~~expect. Your iPhone battery is draining fast suddenly or does not last as long after an update.~~[/summary]
+	[summary]Has your iPhone battery suddenly started draining rapidly? Are you charging your phone multiple times in a day? Try some of these fixes![/summary]



-	We all want to think our phone's battery will last us long enough to get us to a charger. ~~Optimistic though it may be.~~ But sometimes, it just doesn't. If your iPhone is constantly attached to a cable, there are ways to ~~untether you from the~~ electrical outlet.
+	We all want to think our phone's battery will last long enough to get us to a charger. But sometimes, it just doesn't. Don't worry. If your iPhone is constantly attached to a cable, there are ways to relieve your reliance on an electrical outlet.

-	== ~~First Steps~~ ==
+	== The Basics ==

	Before undertaking any of the more time consuming solutions below, these are a few fundamentals to get you started.

-	* Perform a force restart.
-	For iPhone 8 and newer:** Press and release the volume up button, then volume down, then press and hold the power button until the screen goes black and the Apple logo reappears.
-	For iPhone 7 and 7 Plus:** Press and hold the volume down and power buttons until the display goes black and the Apple logo reappears.
-	For iPhone 6S and older:** Press and hold the home and power buttons until the display goes black and the Apple logo reappears.
+	* Restart your phone. It's Troubleshooting 101 with good reason. It can clear random hiccups, or a stuck process caught gobbling energy. [link\|https://www.ifixit.com/Search?doctype=guide&query=how%20to%20force%20restart%20an%20iphone\|Do a force restart\|new_window=true] if you prefer.
	* Update software. Both operating system and app updates could resolve battery life issues.
-	* Turn down screen brightness - High screen brightness is a major battery life killer. Alternatively, enable auto-brightness under ''Settings > Accessibility > Display and Text Size.'' The auto-brightness toggle is at the bottom of this menu.
-	* Check your battery health. Under ''Settings > Battery > Battery Health'' Does it say Service? If so, skip ahead to the [[iPhone Battery Draining Fast#Section_Faulty_Battery\|Faulty Battery Section]].
-	* Try enabling Low Power mode as a ~~stop gap~~. This can be enabled in the Battery option of the Settings menu.
+	* Turn down screen brightness - High screen brightness is a major battery life killer. Alternatively, enable auto-brightness under *Settings > Accessibility > Display and Text Size.* The auto-brightness toggle is at the bottom of this menu.
+	* Check your battery health. Under *Settings > Battery > Battery Health* Does it say Service? If so, skip ahead to the [[iPhone Battery Draining Fast#Section_Faulty_Battery\|Faulty Battery Section]].
+	* Try enabling Low Power mode as a stopgap. This can be enabled in the Battery option of the Settings menu. For easy access, [link\|https://support.apple.com/guide/iphone/use-and-customize-control-center-iph59095ec58/ios\|add the toggle to Control Center\|new_window=true].
	[comment]solutions[/comment]


	Advertised battery life and battery life in practice often vary wildly. Just because the specs page on your brand new iPhone 13 Pro Max boasts up to 95 hours of audio playback, doesn’t mean you'll get four whole days of use on a single charge. These numbers are acquired in precisely controlled and idealized scenarios. Here are some ways to minimize your phone's energy consumption.

-	* Check to see what is using your battery. Navigate to ''Settings > Battery''. Underneath the battery health indicator is a breakdown of what is sucking down power. ~~Consider limiting~~ use of apps ~~which use more~~ energy or ~~coming~~ to terms with their impact on battery life.
-	** Turn off background app refresh for all apps, or apps you don’t need real time notifications from. This can be toggled off for all ~~apps~~ or individual apps under ''Settings > General > Background App Refresh.''
+	* Check to see what is using your battery. Navigate to *Settings > Battery*. Underneath the battery health indicator is a breakdown of what is sucking down power. Limit use of apps that consume lots of energy, or come to terms with their impact on battery life.
+	Turn off background app refresh for all apps, or apps you don’t need real time notifications from. This can be toggled off for all or individual apps under Settings > General > Background App Refresh**''.''
	* If you tend to get a lot of notifications, disabling vibrations can significantly improve battery life.
	* Decrease your screen lock time out. Or be sure to lock your phone when you’re done using it.
-	* Enable Do Not Disturb mode. Otherwise incoming notifications will power the screen on as they come in. Bear in mind you may need to configure exceptions if you don't want to risk missing important calls.
-	* GPS, video games, streaming media and frequent use of the camera flash will also consume higher than typical amounts of energy and could shorten battery life.
+	* Enable Do Not Disturb (or [link\|https://support.apple.com/en-us/HT212608\|Focus\|new_window=true]) mode. Otherwise incoming notifications will power the screen on as they come in. Bear in mind you may need to configure exceptions if you don't want to risk missing important calls.
+	* GPS, video games, streaming media, and frequent use of the camera flash will also consume higher than typical amounts of energy and could shorten battery life.

	== Buggy Software ==

-	Poorly optimized or buggy software can be a battery killer. If the onset of your battery drain is sudden, it may be that an app updated or your phone installed a patch. The newer version could ~~contain~~ features that are more resource intensive, or ~~has~~ a bug ~~which~~ runs your battery dry.
+	Poorly optimized or buggy software can be a battery killer. If the onset of your battery drain is sudden, it may be that an app updated, or your phone installed a patch. The newer version could include features that are more resource intensive, or contain a bug that runs your battery dry.

-	* Check to see if any apps have updated recently. In the App Store, select the profile icon by clicking the icon in the upper right corner to access apps you own or have downloaded. At the bottom of this page will list apps which require updates, and beneath that, Apps which have been recently updated are shown. Compare this to your battery usage if necessary.
-	* Quit any app which seems a likely offender and see if it makes a difference to battery life. Uninstall any apps in the overlap which are having a negative impact. If battery life improves try reinstalling the app.
+	* Check to see if any apps have updated recently.
+	## In the App Store, select the profile icon in the upper right corner to access apps you own or have downloaded.
+	## At the bottom of this page, apps that require updates are listed. Beneath that, apps that have recently updated are shown. Compare this to your battery usage if necessary.
+	* Quit any app that seems a likely offender and see if it makes a difference to battery life. Uninstall any apps in the overlap of high usage and recent update. If battery life improves once uninstalled, try reinstalling the app.
+	Pro Tip:** You can use browser versions of many of the apps in the app store if you have to uninstall an app you use often during testing.
	* A fresh OS install is a drastic measure to address battery life, but could still be helpful, especially if some corruption is contributing to the issue.
	** Be sure to have a backup of your device and connect to iTunes to perform the reset for the most reliable results. [br]

	When your phone is in an area where cellular coverage is limited, it boosts the amount of energy sent to antenna functions to attempt to pull signal in from further away. This can drain your battery with frightening speed.

-	* This would show in the battery usage settings.
+	* This would show in the battery usage settings [[iPhone Battery Draining Fast#Section_First_Steps\|mentioned above]].
	* Disable cellular functions by enabling Airplane mode until you are in an area with better coverage. WiFi and Bluetooth can still be utilized in this mode, although they may need to be re-enabled.
	* If your cellular service is consistently low, start with a network settings reset. This option can be found under ''Settings > General > Reset (''Could also be listed as ''Transfer or Reset Phone'').
	** No data is erased by this reset, but it will require you to reconnect any previously known Wi-Fi or Bluetooth connections.
-	* Consistently poor cell service can also be a result of failed hardware and may be worth [link\|https://www.ifixit.com/Answers\|posting at the Answers forum] to determine causality ~~since it~~ is ~~a complex issue unto itself~~.
+	* Consistently poor cell service can also be a result of failed hardware and may be worth [link\|https://www.ifixit.com/Answers\|posting at the Answers forum] to determine causality. There are a high number of factors, so a lot isolating is usually necessary.

	== Extreme Temperatures ==

-	Batteries don’t like extreme temperatures on either end of the spectrum. Lithium Ion batteries used in most mobile devices [link\|https://electronics.howstuffworks.com/everyday-tech/lithium-ion-battery.htm\|generate energy due to a chemical reaction within the battery]. This reaction does not function well in cold temperatures and generates far less energy than normal. Hot temperatures can be just as problematic. Not only do high temperatures degrade the battery more quickly, it can also cause catastrophic failure, potentially even explosion.
+	Batteries don’t like extreme temperatures on either end of the spectrum. Lithium Ion batteries, like those used in most mobile devices, [link\|https://electronics.howstuffworks.com/everyday-tech/lithium-ion-battery.htm\|generate energy due to a chemical reaction within the battery]. This reaction does not function well in cold temperatures and generates far less energy than normal. Hot temperatures can be just as problematic. Not only do high temperatures degrade the battery more quickly, they can also cause catastrophic failure, potentially even explosion.

	* During times when you are planning to be in cold environments, keep your phone close to your body, or turn it off altogether until you are in a warmer space.
	* Cases designed to keep phones from losing heat are also available if you face this issue consistently.
-	* Leave your phone somewhere cool, or out of the sun if you will be in a hot area for long periods ~~of time~~.
+	* Leave your phone somewhere cool, or out of the sun if you will be in a hot area for long periods.

	== Faulty Battery ==

	We are likely all aware that all rechargeable batteries degrade over time. This can lead to poor battery life. Not only are the chemicals contained in them consumed with use, they can also fail suddenly.

-	* Check your battery health. Under ''Settings > Battery > Battery Health'' Does it say Service?
+	* Check your battery health. Under *Settings > Battery > Battery Health* Does it say Service?
	By Apple’s guidelines, anything with a capacity of less that 80% needs battery service, though it can detect other failures as well. If it says Service** here, a new battery is a reasonable start.
	* Search for signs of [link\|https://www.ifixit.com/News/11211/what-to-do-with-a-swollen-iphone-battery\|battery swelling]. Is there localized screen discoloration on the left side (or right side for series 12 and 13 iPhones). Is the screen lifting along one side?
-	* ~~Replace~~ [link\|https://www.ifixit.com/~~Parts/~~iPhone~~/Batteries~~\|the battery] if there are any indications of failure. Exercise caution when handling the battery. Lithium-ion batteries can be hazardous if they are damaged. [[Topic:iPhone\|Detailed Guides\|new_window=true]] are also available to help you complete this repair like a pro!
+	* Use the [link\|https://www.ifixit.com/Search?doctype=guide&query=iphone%20battery%20replacement\|battery guide for your phone] to replace [parts\|iPhone\|the battery\|itemtype=batteries] if there are any indications of failure. *Exercise caution* when handling the battery. Lithium-ion batteries [link\|https://www.ifixit.com/News/69041/how-batteries-can-catch-fire-and-how-to-prevent-it\|can be hazardous\|new_window=true] if they are damaged. [[Topic:iPhone\|Detailed Guides\|new_window=true]] are also available to help you complete this repair like a pro!

-	== Charging Port ==
+	== Charging Port Damage ==

	Although charging issues are more commonly related to the Lightning port, it can also cause rapid battery drain.

	* Do an examination of the pins in the port itself. Liquid, or bent pins inside the charge port can cause bridging of electrical lines.
	* Check for signs of liquid, or tear to the internal assembly which the charge port is attached to.
-	* Rather than trying to clean up, or repair existing damage, [link\|https://www.ifixit.com/Search?doctype=guide&query=iphone%20replace%20lightning%20connector\|replace the charge port assembly]. Be mindful of your part source, subpar charge port assemblies are common and can cause a host of issues. This is a part to splurge for the known good [~~link~~\|~~https://www.ifixit.com/Parts/Phone?q=lightning%20connector~~\|quality replacement].
+	* Rather than trying to clean up, or repair existing damage, [link\|https://www.ifixit.com/Search?doctype=guide&query=iphone%20replace%20lightning%20connector\|replace the charge port assembly]. Be mindful of your part source, subpar charge port assemblies are common and can cause a host of issues. This is a part to splurge for the known good [parts\|iPhone\|quality replacement\|itemtype=ports].

-	== Tristar ==
+	== Tristar Malfunction ==

-	The [product\|IF126-039\|Tristar chip\|new_window=true] (or Hydra in the iPhone 8 and newer) on an iPhone logic board is responsible primarily for USB related functions. But it is also integral in the charging process. It detects items connected via the Lightning port and has electrical lines of communication to the charging chip. It is also the chip most commonly damaged on the board.
+	The [product\|IF126-039\|Tristar chip\|new_window=true] (or Hydra in the iPhone 8 and newer, Kraken in the iPhone 12 and newer) on an iPhone logic board is responsible primarily for USB related functions. But it is also integral in the charging process. It detects items connected via the Lightning port and has electrical lines of communication to the charging chip. It is also the chip most commonly damaged on the board in many models.

-	* Tristar issues manifest in many ways, rapid battery drain is only one of them. You can [link\|https://www.youtube.com/watch?v=IFaSlgLRTkc\|use a multimeter to easily test some functions of Tristar].
+	* Tristar issues manifest in many ways, rapid battery drain is only one of them. You can use a [product\|IF145-035-7\|digital-multimeter\|new_window=true] to [link\|https://www.youtube.com/watch?v=IFaSlgLRTkc\|easily test some functions of Tristar].
+	** If you're especially invested, [link\|http://tristartester.com/en/shop/\|dedicated Tristar testers\|new_window=true] are popular amongst repair shops, but are expensive for a single time use.
	* This is not a repair most people will be able to do themselves and requires the ability to solder small components onto a circuit board. However, it is a repair any good shop that does board level repairs would be able to do. Ask around to find a board level specialist in your area!

-	== Logic Board ==
+	== Logic Board Fault ==

	The logic board is the hub for the vast majority of an iPhone's functionality. Any number of the small components on the board may have failed or become damaged, and is a safe assumption of cause if nothing else on this page has worked.

	* Contrary to popular belief, the board itself can be repaired. However, it requires specialized tools and microsoldering know-how. This is not something most people can do themselves, but many independent repair shops can do it for you!
	[comment]conclusion[/comment]
+
+	== About the Author ==
+
+	Even before I was repairing phones, I was selling them. I never liked sales, but I did like phones. So I transitioned to repairing them. I hold an Apple ACiT certification, passing my exam shortly before the onslaught of “[link\|https://www.ifixit.com/News/11208/batterygate-timeline\|batterygate]” in 2018. I barely survived the year of the $29 iPhone battery replacement, but built up some serious repair chops.Eventually I wasn’t satisfied with the sot of repairs official Apple channels offered and stumbled into [link\|https://www.ifixit.com/News/6911/micro-soldering-mom\|iFixit’s article on Jessa Jones]. I caught the microsoldering bug and now I troubleshoot iPhones all the way down the logic board.

	== Related Pages ==

Anglais

Titre de page

Titre affiché

Résumé

Has your iPhone battery suddenly started draining rapidly? Are you charging your phone multiple times in a day? Try some of these fixes!

Informations supplémentaires

We all want to think our phone's battery will last long enough to get us to a charger. But sometimes, it just doesn't. Don't worry. If your iPhone is constantly attached to a cable, there are ways to relieve your reliance on an electrical outlet.

== The Basics ==

Before undertaking any of the more time consuming solutions below, these are a few fundamentals to get you started.

* Restart your phone. It's Troubleshooting 101 with good reason. It can clear random hiccups, or a stuck process caught gobbling energy. [link|https://www.ifixit.com/Search?doctype=guide&query=how%20to%20force%20restart%20an%20iphone|Do a force restart|new_window=true] if you prefer.
* Update software. Both operating system and app updates could resolve battery life issues.
* Turn down screen brightness - High screen brightness is a major battery life killer.  Alternatively, enable auto-brightness under ***Settings > Accessibility > Display and Text Size.*** The auto-brightness toggle is at the bottom of this menu.
* Check your battery health. Under ***Settings > Battery > Battery Health*** Does it say Service? If so, skip ahead to the [[iPhone Battery Draining Fast#Section_Faulty_Battery|Faulty Battery Section]].
* Try enabling Low Power mode as a stopgap. This can be enabled in the Battery option of the Settings menu. For easy access, [link|https://support.apple.com/guide/iphone/use-and-customize-control-center-iph59095ec58/ios|add the toggle to Control Center|new_window=true].
[comment]solutions[/comment]

== Heavy Use ==

Advertised battery life and battery life in practice often vary wildly. Just because the specs page on your brand new iPhone 13 Pro Max boasts up to 95 hours of audio playback, doesn’t mean you'll get four whole days of use on a single charge. These numbers are acquired in precisely controlled and idealized scenarios. Here are some ways to minimize your phone's energy consumption.

* Check to see what is using your battery. Navigate to ***Settings > Battery***. Underneath the battery health indicator is a breakdown of what is sucking down power. Limit use of apps that consume lots of energy, or come to terms with their impact on battery life.
** Turn off background app refresh for all apps, or apps you don’t need real time notifications from. This can be toggled off for all or individual apps under ***Settings > General  > Background App Refresh***''.''
* If you tend to get a lot of notifications, disabling vibrations can significantly improve battery life.
* Decrease your screen lock time out. Or be sure to lock your phone when you’re done using it.
* Enable Do Not Disturb (or [link|https://support.apple.com/en-us/HT212608|Focus|new_window=true]) mode. Otherwise incoming notifications will power the screen on as they come in. Bear in mind you may need to configure exceptions if you don't want to risk missing important calls.
* GPS, video games, streaming media, and frequent use of the camera flash will also consume higher than typical amounts of energy and could shorten battery life.

== Buggy Software ==

Poorly optimized or buggy software can be a battery killer. If the onset of your battery drain is sudden, it may be that an app updated, or your phone installed a patch. The newer version could include features that are more resource intensive, or contain a bug that runs your battery dry.

* Check to see if any apps have updated recently.
## In the App Store, select the profile icon in the upper right corner to access apps you own or have downloaded.
## At the bottom of this page, apps that require updates are listed. Beneath that, apps that have recently updated are shown. Compare this to your battery usage if necessary.
* Quit any app that seems a likely offender and see if it makes a difference to battery life. Uninstall any apps in the overlap of high usage and recent update. If battery life improves once uninstalled, try reinstalling the app.
** ***Pro Tip:*** You can use browser versions of many of the apps in the app store if you have to uninstall an app you use often during testing.
* A fresh OS install is a drastic measure to address battery life, but could still be helpful, especially if some corruption is contributing to the issue.
** Be sure to have a backup of your device and connect to iTunes to perform the reset for the most reliable results. [br]

== Low Cell Service ==

When your phone is in an area where cellular coverage is limited, it boosts the amount of energy sent to antenna functions to attempt to pull signal in from further away. This can drain your battery with frightening speed.

* This would show in the battery usage settings [[iPhone Battery Draining Fast#Section_First_Steps|mentioned above]].
* Disable cellular functions by enabling Airplane mode until you are in an area with better coverage. WiFi and Bluetooth can still be utilized in this mode, although they may need to be re-enabled.
* If your cellular service is consistently low, start with a network settings reset. This option can be found under ''Settings > General > Reset (''Could also be listed as ''Transfer or Reset Phone'').
** No data is erased by this reset, but it will require you to reconnect any previously known Wi-Fi or Bluetooth connections.
* Consistently poor cell service can also be a result of failed hardware and may be worth [link|https://www.ifixit.com/Answers|posting at the Answers forum] to determine causality. There are a high number of factors, so a lot isolating is usually necessary.

== Extreme Temperatures ==

Batteries don’t like extreme temperatures on either end of the spectrum. Lithium Ion batteries, like those used in most mobile devices, [link|https://electronics.howstuffworks.com/everyday-tech/lithium-ion-battery.htm|generate energy due to a chemical reaction within the battery]. This reaction does not function well in cold temperatures and generates far less energy than normal. Hot temperatures can be just as problematic. Not only do high temperatures degrade the battery more quickly, they can also cause catastrophic failure, potentially even explosion.

* During times when you are planning to be in cold environments, keep your phone close to your body, or turn it off altogether until you are in a warmer space.
* Cases designed to keep phones from losing heat are also available if you face this issue consistently.
* Leave your phone somewhere cool, or out of the sun if you will be in a hot area for long periods.

== Faulty Battery ==

We are likely all aware that all rechargeable batteries degrade over time. This can lead to poor battery life. Not only are the chemicals contained in them consumed with use, they can also fail suddenly.

* Check your battery health. Under ***Settings > Battery > Battery Health*** Does it say Service?
** By Apple’s guidelines, anything with a capacity of less that 80% needs battery service, though it can detect other failures as well. If it says ***Service*** here, a new battery is a reasonable start.
* Search for signs of [link|https://www.ifixit.com/News/11211/what-to-do-with-a-swollen-iphone-battery|battery swelling]. Is there localized screen discoloration on the left side (or right side for series 12 and 13 iPhones). Is the screen lifting along one side?
* Use the [link|https://www.ifixit.com/Search?doctype=guide&query=iphone%20battery%20replacement|battery guide for your phone] to replace [parts|iPhone|the battery|itemtype=batteries] if there are any indications of failure. ***Exercise caution*** when handling the battery. Lithium-ion batteries [link|https://www.ifixit.com/News/69041/how-batteries-can-catch-fire-and-how-to-prevent-it|can be hazardous|new_window=true] if they are damaged. [[Topic:iPhone|Detailed Guides|new_window=true]] are also available to help you complete this repair like a pro!

== Charging Port Damage ==

Although charging issues are more commonly related to the Lightning port, it can also cause rapid battery drain.

* Do an examination of the pins in the port itself. Liquid, or bent pins inside the charge port can cause bridging of electrical lines.
* Check for signs of liquid, or tear to the internal assembly which the charge port is attached to.
* Rather than trying to clean up, or repair existing damage, [link|https://www.ifixit.com/Search?doctype=guide&query=iphone%20replace%20lightning%20connector|replace the charge port assembly]. Be mindful of your part source, subpar charge port assemblies are common and can cause a host of issues. This is a part to splurge for the known good [parts|iPhone|quality replacement|itemtype=ports].

== Tristar Malfunction ==

The [product|IF126-039|Tristar chip|new_window=true] (or Hydra in the iPhone 8 and newer, Kraken in the iPhone 12 and newer) on an iPhone logic board is responsible primarily for USB related functions. But it is also integral in the charging process. It detects items connected via the Lightning port and has electrical lines of communication to the charging chip. It is also the chip most commonly damaged on the board in many models.

* Tristar issues manifest in many ways, rapid battery drain is only one of them. You can use a [product|IF145-035-7|digital-multimeter|new_window=true] to [link|https://www.youtube.com/watch?v=IFaSlgLRTkc|easily test some functions of Tristar].
** If you're especially invested, [link|http://tristartester.com/en/shop/|dedicated Tristar testers|new_window=true] are popular amongst repair shops, but are expensive for a single time use.
* This is not a repair most people will be able to do themselves and requires the ability to solder small components onto a circuit board. However, it is a repair any good shop that does board level repairs would be able to do. Ask around to find a board level specialist in your area!

== Logic Board Fault ==

The logic board is the hub for the vast majority of an iPhone's functionality. Any number of the small components on the board may have failed or become damaged, and is a safe assumption of cause if nothing else on this page has worked.

* Check for obvious signs of a board issue - burned or cracked components, liquid residue, corrosion or bend. If there are signs of liquid the [guide|95280|iPhone Liquid Damage Guide|new_window=true] might help.
* Replacing the logic board is often the most practical solution for a DIYer whose board has failed.
* Contrary to popular belief, the board itself can be repaired. However, it requires specialized tools and microsoldering know-how. This is not something most people can do themselves, but many independent repair shops can do it for you!
[comment]conclusion[/comment]

== About the Author ==

Even before I was repairing phones, I was selling them. I never liked sales, but I did like phones. So I transitioned to repairing them. I hold an Apple ACiT certification, passing my exam shortly before the onslaught of “[link|https://www.ifixit.com/News/11208/batterygate-timeline|batterygate]” in 2018. I barely survived the year of the $29 iPhone battery replacement, but built up some serious repair chops.Eventually I wasn’t satisfied with the sot of repairs official Apple channels offered and stumbled into [link|https://www.ifixit.com/News/6911/micro-soldering-mom|iFixit’s article on Jessa Jones]. I caught the microsoldering bug and now I troubleshoot iPhones all the way down the logic board.

== Related Pages ==

* [[iPhone Keeps Restarting|iPhone Keeps Restarting|new_window=true]]
* [[iPhone Overheating|iPhone Overheating|new_window=true]]
* [[iPhone Frozen Screen|iPhone Frozen Screen|new_window=true]]
* [[iPhone Black Screen|iPhone Black Screen|new_window=true]]
* [[iPhone Randomly Shuts Off|iPhone Randomly Shuts Off|new_window=true]]

Français

[title|Ma batterie iPhone se décharge vite]

[summary]Votre batterie iPhone se décharge rapidement ou plus rapidement que prévu. Votre batterie iPhone se vide d'un coup ou ne dure plus aussi longtemps après une mise à jour.[/summary]

[summary_image|2724632]

Nous voulons tous croire que nos batteries téléphone durent suffisamment longtemps pour nous permettre d'arriver à une prise. Bien que cela puisse être optimiste, ce n'est pas toujours le cas. Si votre iPhone est constamment branché, il existe des moyens de vous affranchir de la prise électrique.

== Premières étapes ==

Avant d'entreprendre les solutions plus longues décrites ci-dessous, voici quelques éléments fondamentaux pour commencer.

* Effectuez une réinitialisation forcée.
** ***Pour l'iPhone 8 et les modèles plus récents :*** Appuyez rapidement sur le bouton de volume +, puis sur le bouton de volume -, puis maintenez enfoncé le bouton de marche, jusqu'à ce que l'écran devienne noir et que le logo Apple réapparaisse.
** ***Pour l'iPhone 7 et 7 Plus :*** Maintenez enfoncés les boutons de volume - et de marche jusqu'à ce que l'écran devienne noir et que le logo Apple réapparaisse.
** ***Pour l'iPhone 6S et les modèles plus anciens :*** Maintenez enfoncés les boutons home et de marche jusqu'à ce que l'écran devienne noir et que le logo Apple réapparaisse.
* Mettez à jour le logiciel. Les mises à jour du système d'exploitation et des applications peuvent résoudre les problèmes de durée de vie batterie iPhone.
* Réduisez la luminosité de l'écran - Une luminosité élevée de l'écran consomme beaucoup de batterie. Vous pouvez également activer la luminosité automatique dans ''Réglages > Accessibilité > Affichage et taille du texte''. Le commutateur de luminosité automatique se trouve en bas de ce menu.
* Vérifiez l'état de santé de votre batterie. Sous ''Réglages > Batterie > État de la batterie'', est-ce que "Service" ou "réparation" s'affiche ? Si c'est le cas, passez à la section Batterie iPhone défectueuse.
* Essayez d'activer le mode Économie d'énergie comme solution temporaire. Vous pouvez l'activer dans l'option Batterie du menu Réglages.
[comment]solutions[/comment]

== Utilisation intensive ==

La durée de vie de la batterie annoncée et la durée de vie réelle de la batterie peuvent souvent varier considérablement. Le fait que la page des spécifications de votre tout nouvel iPhone 13 Pro Max indique jusqu'à 95 heures de lecture audio ne signifie pas que vous pourrez l'utiliser pendant quatre jours entiers avec une seule charge. Ces chiffres sont obtenus dans des scénarios précis et idéalisés. Voici quelques façons de réduire la consommation d'énergie de votre téléphone.

* Vérifiez ce qui utilise votre batterie. Accédez à ''Réglages > Batterie''. Sous l'indicateur de l'état de santé de la batterie, vous trouverez une liste des applis et de l'énergie qu'elles consomment. Envisagez de limiter l'utilisation des applications qui consomment plus d'énergie ou acceptez leur impact sur la durée de vie de la batterie.
** Désactivez la mise à jour en arrière-plan pour toutes les applications, ou pour les applications dont vous n'avez pas besoin de notifications en temps réel. Vous pouvez la désactiver pour toutes les applications ou pour des applications individuelles dans ''Réglages > Général > Actualiser en arrière-plan''.
* Si vous recevez souvent de nombreuses notifications, désactiver les vibrations peut considérablement améliorer la durée de vie de la batterie iPhone.
* Réduisez le délai de verrouillage de l'écran, ou assurez-vous de verrouiller votre téléphone lorsque vous avez fini de l'utiliser.
* Activez le mode Ne pas déranger. Sinon, toute nouvelle notification allume votre écran. N'oubliez pas que vous devrez peut-être configurer des exceptions si vous ne voulez pas risquer de manquer des appels importants.
* L'utilisation intensive du GPS, des jeux vidéo, du streaming multimédia et/ou du flash de la caméra peut également consommer plus d'énergie que d'habitude et réduire la durée de vie de la batterie.

== Bug iPhone ==

Un logiciel mal optimisé ou bogué peut rapidement vider la batterie. Si la décharge de votre batterie survient soudainement, il se peut qu'une application ait été mise à jour ou que votre téléphone ait installé un correctif. La nouvelle version pourrait contenir des fonctionnalités plus gourmandes en ressources ou présenter un bug qui épuise la batterie.

* Vérifiez si des applications ont été mises à jour récemment. Dans l'App Store, sélectionnez l'icône de profil en cliquant sur l'icône en haut à droite pour accéder aux applications que vous possédez ou avez téléchargées. En bas de cette page, vous trouverez la liste des applications nécessitant des mises à jour, puis les applications récemment mises à jour. Comparez cela à votre utilisation de la batterie si nécessaire.
* Fermez toute application qui semble être la cause probable et vérifiez si cela améliore la durée de vie batterie. Désinstallez les applications qui ont un impact négatif. Si la durée de vie batterie s'améliore, réinstallez l'application.
* Réinstaller le système d'exploitation est une mesure radicale pour résoudre les problèmes de durée de vie de la batterie, mais cela peut être utile, surtout si un bug iPhone contribue au problème.
** Assurez-vous d'avoir une sauvegarde de votre appareil et connectez-vous à iTunes pour effectuer la réinitialisation, afin d'obtenir les résultats les plus fiables. [br]

== Faible réseau cellulaire ==

Lorsque votre téléphone se trouve dans une zone où la couverture cellulaire est limitée, il augmente la quantité d'énergie envoyée aux fonctions d'antenne, pour essayer de capter un signal plus éloigné. Cela peut vider rapidement votre batterie.

* Cela apparaîtrait dans les paramètres d'utilisation de la batterie.
* Désactivez les fonctions cellulaires en activant le mode Avion jusqu'à ce que vous vous trouviez dans une zone avec une meilleure couverture. Le Wi-Fi et le Bluetooth peuvent toujours être utilisés dans ce mode, bien qu'ils puissent avoir besoin d'être réactivés.
* Si votre service cellulaire est constamment faible, commencez par réinitialiser les paramètres réseau. Cette option se trouve sous ''Réglages > Général > Réinitialiser > Réinitialiser les réglages réseau'').
** Aucune donnée n'est effacée par cette réinitialisation, mais vous devrez vous reconnecter à tous vos réseaux Wi-Fi ou Bluetooth.
* Un service cellulaire constamment médiocre peut également être le résultat d'un matériel défectueux et il peut être utile de [link|https://www.ifixit.com/Answers|poster sur notre Forum] pour déterminer la cause, car c'est un problème complexe en soi.

== Températures extrêmes ==

Les batteries n'aiment pas les températures extrêmes, que ce soit dans un sens ou dans l'autre. Les batteries au lithium-ion utilisées dans la plupart des appareils mobiles [link|https://www.fiches-auto.fr/articles-auto/voiture-electrique/s-2348-impact-des-temperatures-sur-les-batteries-de-voitures-electriques.php|génèrent de l'énergie grâce à une réaction chimique à l'intérieur de la batterie|new_window=true]. Cette réaction ne fonctionne pas bien par temps froid et génère beaucoup moins d'énergie que d'habitude. Les températures élevées peuvent également poser problème. Non seulement les températures élevées dégradent la batterie plus rapidement, mais elles peuvent également provoquer une défaillance catastrophique, voire une explosion.

* Lorsque vous prévoyez d'être dans des environnements froids, gardez votre téléphone près de votre corps ou éteignez-le complètement jusqu'à ce que vous soyez dans un endroit plus chaud.
* Des étuis conçus pour empêcher les téléphones de perdre de la chaleur sont également disponibles si vous rencontrez régulièrement ce problème.
* Laissez votre téléphone dans un endroit frais, à l'abri du soleil si vous vous trouvez dans une zone chaude pendant de longues périodes.

== Batterie iPhone défectueuse ==

Nous sommes probablement tous conscients que toutes les batteries rechargeables se dégradent avec le temps. Cela peut entraîner une mauvaise durée de vie batterie. Non seulement les produits chimiques qu'elles contiennent sont consommés avec l'utilisation, mais elles peuvent également tomber en panne soudainement.

* Vérifiez l'état de santé de votre batterie. Sous ''Réglages > Batterie > État de la batterie'', est-ce que "Service" ou "Réparation" s'affiche ?
** Selon les directives d'Apple, tout ce qui a une capacité inférieure à 80 % nécessite un service de la batterie, bien qu'il puisse également s'agir d'autres défaillances. Si cela indique ***Service*** s'affiche, changer de batterie iPhone est un bon début.
* Recherchez des signes de [link|https://fr.ifixit.com/News/54982/que-faire-avec-une-batterie-gonflee|gonflement de la batterie|new_window=true]. Y a-t-il une décoloration localisée de l'écran du côté gauche (ou du côté droit pour les iPhone des séries 12 et 13) ? L'écran se soulève-t-il d'un côté ?
* Remplacez [link|https://store.ifixit.fr/collections/apple-iphone-batteries|la batterie iPhone|new_window=true] s'il y a des indications de défaillance. Faites preuve de prudence lors de la manipulation de la batterie. Les batteries au lithium-ion peuvent être dangereuses si elles sont endommagées. Des [[Topic:iPhone|tutoriels détaillés|new_window=true]] sont également disponibles pour vous aider à effectuer cette réparation comme un professionnel !

== Port de charge ==

Bien que les problèmes de charge soient plus souvent liés au port Lightning, ils peuvent également entraîner une décharge rapide de la batterie.

* Examinez les broches du port de charge. Du liquide ou des broches tordues à l'intérieur du port de charge peuvent court-circuiter les lignes électriques.
* Vérifiez s'il y a des signes de liquide ou de déchirure dans le module interne auquel le port de charge est attaché.
* Au lieu d'essayer de nettoyer ou de réparer les dommages existants, [link|https://www.ifixit.com/Search?doctype=guide&query=iphone%20replace%20lightning%20connector|changez l'ensemble du port de charge|new_window=true]. Faites attention à la source de votre pièce, car les ensembles de ports de charge de qualité inférieure sont courants et peuvent causer divers problèmes. Il vaut mieux opter pour une [parts|iPhone|new_window=true].

== Tristar ==

La [product|IF126-039|puce Tristar|new_window=true] (ou Hydra sur les iPhone 8 et les modèles plus récents) sur les cartes mères des iPhone est principalement responsable des fonctions liées à l'USB. Mais elle est également essentielle dans le processus de charge. Elle détecte les éléments connectés via le port Lightning et assure la communication électrique avec la puce de charge. C'est également la puce la plus souvent endommagée sur la carte mère.

* Les problèmes liés à Tristar se manifestent de différentes manières, et une décharge rapide de la batterie n'est qu'une d'entre elles. Vous pouvez [link|https://www.youtube.com/watch?v=IFaSlgLRTkc|utiliser un multimètre pour tester facilement certaines fonctions de Tristar|new_window=true].
* Ce n'est pas une réparation iPhone que la plupart des gens pourront faire eux-mêmes et elle nécessite la capacité de souder de petits composants sur une carte de circuit imprimé. Cependant, c'est une réparation que tout bon centre de réparation au niveau de la carte serait en mesure de faire. Renseignez-vous pour trouver un spécialiste en réparation de cartes mère dans votre région !

== Carte mère ==

La carte mère est le cœur de la grande majorité des fonctionnalités d'un iPhone. Un certain nombre des petits composants de la carte peuvent être en panne ou endommagés, et c'est une hypothèse sûre à considérer si rien d'autre sur cette page n'a fonctionné.

* Cherchez des signes évidents de problèmes sur la carte - composants brûlés ou fissurés, résidus de liquide, corrosion ou flexion. Si vous observez des signes de liquide, le [guide|95280|tutoriel de réparation des dommages liquides sur iPhone|new_window=true] pourrait vous être utile.
* Le remplacement de la carte mère est souvent la solution la plus pratique pour un adepte du DIY dont la carte a échoué.
* Contrairement à ce que l'on pourrait croire, la carte mère elle-même peut être réparée. Cependant, cela nécessite des outils spécialisés et une expertise en microsoudure. Ce n'est pas quelque chose que la plupart des gens peuvent faire eux-mêmes, mais de nombreux centres de réparation indépendants peuvent le faire pour vous !

== Pages connexes ==