Lenovo Battery 3 Cell 52.5Wh 11.52V

The Lenovo 5B11F38038 is a three-cell lithium-ion laptop battery, model L21L3PE0, for replacing a battery when this is the specified service part. The exact part number helps identify the correct battery within the same product family.

Its listed electrical ratings are 52.5 Wh and 11.52 V. Lenovo documentation gives the same voltage and rounds the capacity to 53 Wh, so published capacity figures differ while the voltage agrees.

Lenovo also associates part 5B11F38038 with assembly number SB11F38040. The three-cell design and lithium-ion chemistry describe the battery’s construction; together with its model and ratings, these identifiers help distinguish it from other Lenovo battery parts.