- 1 x lithium ion 6-cell 4400 mAh 47.5 Wh
- for Lenovo B590; ThinkPad E440; E540; ThinkPad Edge E430; E431; E530; E531; E535; E545
Power up portable computing devices with the BTI-Notebook Battery. It is a Lithium-Ion battery with six cells. A power capacity of 4400 mAh helps your device function for long period without needing a recharge. It is compatible with the Lenovo B590, ThinkPad E440, E540, ThinkPad Edge E430, E431, E530, E531, E535 and E545 notebook computers.