ThinkPad Battery 27++

ThinkPad Battery 27++ (57Y4545) This is a battery pack that attaches to the docking port of a supported model. Features Battery specification: 8.4Ah, 11.1V, 93.24Wh Battery cell count: Nine, 3.7V lithium-ion cylindrical cell Battery run time: up to 9 hours Battery charge time: up to 5 hours Weight: 610 grams or 1.35 pounds FOOTNOTES [Δ] This battery cannot be used with a W530, T430, T430i, T530, or a T530i, as the battery controller isn't recognized by the aforementioned models.

Part numbers

• 42T4739 (42T4740)

Models supporting this accessory

• W510, W520
• T410, T410i, T420, T420i, T510, T510i, T520, T520i