BTI 0A36303-BTI - Laptop battery (premium) (equivalent to: IBM 42T4710, IBM 42T4712, IBM 42T4714, IBM 57Y4186, IBM 42T4801, IBM 42T4802, IBM 42T4912, IBM 42T4803, IBM 42T4799, IBM 42T4853)

Lithium Ion - 9-cell - 8400 mAh