Genuine Replacement Battery for Lenovo ThinkPad T16 and P16s Business Series Restore your Lenovo ThinkPad T16 Gen 1-2 or P16s Gen 1-2 to optimal performance with this premium 52.5Wh Li-ion replacement battery. Specifically engineered for Lenovo's business laptop series, this L21L4P72 compatible battery delivers reliable power for professional use with stable 15.44V output and efficient 3400mAh capacity. Perfect for business professionals requiring dependable performance across multiple ThinkPad generations.