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Version actuelle par : Henrik Heimbuerger

Titre:

Replacement batteries — do I have to 'reset' the controller somehow?

Texte:

I believe my question is manufacturer-agnostic.
I have replaced the battery of my laptop. The new battery reported to be 51.5 Wh, but only charged to 5 Wh.
So I bought another one and this one charged to 30 Wh and stopped there.
Now I'm wondering, are these just defective (quite possible), or is there something in my device (software or some hardware controller), which remembers the last battery state and stops charging beyond that point?
In other words, when installing a new battery in a laptop, would you expect it right away to charge to 90%+ of its advertised capacity?
+
+=== Update (01/23/2023) ===
+
+Update for anyone reading this in the future:
+
+I ended up buying an 'official' (Lenovo-branded) battery pack for about 90€ (aftermarket batteries were 40€ and 60€) from ipc-computer.de.
+
+Sadly, they also couldn't tell me any production dates ahead of ordering, nor is a production date printed on the battery pack. I find that really irritating and unsatisfying, but apparently this is normal right now.
+
+According to the Windows battery report, the new pack is made by Celxpert, while the one that came with the machine was made by LGC (as @jayeff pointed out, that stands for LG Chem).
+
+I'm quite happy with it, after three cycles, I get about 44 Wh out of it, which is 2-3h of normal use. Not amazing, but probably what you can expect from this not particularly efficient (but otherwise still great!) Yoga 730.
+
+It also charges from 2% to 100%, as one would expect. (But after my experience with the aftermarket batteries, is unreasonably satisfying to watch!)
+
+Also having zero PROCHOT or similar performance triggers.

Appareil:

Lenovo YOGA 730-15IKB

Statut:

open

Contribution d'origine par : Henrik Heimbuerger

Titre:

Replacement batteries — do I have to 'reset' the controller somehow?

Texte:

I believe my question is manufacturer-agnostic.

I have replaced the battery of my laptop. The new battery reported to be 51.5 Wh, but only charged to 5 Wh.

So I bought another one and this one charged to 30 Wh and stopped there.

Now I'm wondering, are these just defective (quite possible), or is there something in my device (software or some hardware controller), which remembers the last battery state and stops charging beyond that point?

In other words, when installing a new battery in a laptop, would you expect it right away to charge to 90%+ of its advertised capacity?

Appareil:

Lenovo YOGA 730-15IKB

Statut:

open