3.85V 2880mAh TLi028C7 Tli028c1 Battery for Alcatel per 1A 1B (2020) phone

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. Then unscrew the old battery screws one by one, and carefully save each screw.

eBay