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1,Disconnect the connection between the old battery and the motherboard to avoid unnecessary damage caused by disassembling the battery. Then unscrew the old battery screws one by one and carefully save each.
2, Remove the old battery, carefully install the new battery on the battery case, and connect the wiring of the new battery.
3, If you don't understand the above steps, you can search for the video about laptop battery installation on YouTube. Maybe it will help you
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