Lenovo ThinkPad T480 External Battery Replacement

Introduction

Compared to desktop devices, laptops require an external source of power. Unfortunately, especially with older devices, these external batteries were not designed to last long periods of time, and they will eventually wear off after going through multiple recharging cycles until they are incapable of holding a charge.

If your Lenovo ThinkPad T480 no longer holds a charge, or loses its charge very quickly, you most likely have a dead or failing battery which may require replacement. Depending on the cause of your faulty battery, you may be able to resolve the issue using this list of troubleshooting symptoms and solutions from Lenovo’s support forum.

For your safety, discharge your battery below 25% before disassembling your device. This reduces the risk of a dangerous thermal event if the battery is accidentally damaged during the repair. If your battery is swollen, take appropriate precautions.

Make sure to disable the internal battery, power down your device, and disconnect from any external power sources before you begin.