New AP18C8K battery for Acer Chromebook Spin CP713-2W 5 slim A515-54 A515-43
AP18C8K 3INP5/82/70. Then unscrew the old battery screws one by one, and carefully save each screw. Remove the old battery, carefully install the new battery on the battery box, tighten the screws, and then connect the wires of the new battery.