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Introduction
If your laptop will not start up or stay charged you may need to replace the battery. To follow this guide you only need a plastic opening tool such as a spudger or credit card and a Phillips #00 screwdriver. It is not a difficult project and the hardest part will be prying the back piece off.

 '''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, [[What to do with a swollen battery|take appropriate precautions|new_window=true]].