Lenovo ThinkPad 9 Cell Slice 28++ Add -On Battery for ThinkPad Models T410/T510/W510/T420/T520/W520/T430/T530/W530 (0A36304)

The 9-Cell Slice Battery 28++ for ThinkPad from Lenovo keeps you unplugged for long hours. The battery features Lithium-ion technology and can be used as a replacement for aging system batteries or as a convenient spare battery.

Features:

• Lithium-ion (Li-Ion) technology
• 9-cell secondary battery slice attaches to bottom of system
• Connection via docking port
• Battery energy 94W/hr
• Mechanical on/off indicator
• Compatible with the ThinkPad external battery charger (40Y7625)
• 16.3 hours average battery duration