This BTI battery is compatible with the Lenovo ThinkPad P14s Gen 3 / Gen 4, ThinkPad T14 Gen 3 / Gen 4. OEM P/N: 5B10W51863, 5B10W51867, 5B10W51902, 5B11M90027, L21D4P71, SB10W51964,SB10W51968, 5B10W51864, 5B10W51899, 5B10W51905, 5B11M90028, L21L4P71, SB10W51965, SB11M89826, 5B10W51865, 5B10W51900, 5B11M90025, 5B11M90029, L21M4P71, SB10W51966, SB11M89830, 5B10W51866, 5B10W51901, 5B11M90026, L21C4P71, L21M4P72, SB10W51967 We recommend: Advance exchange for this product is available directly through Origin Storage throughout the 18-month warranty period. Please note: Please get in touch with your account manager if you have any questions.