Lenovo part: Lenovo ThinkPad Battery 29(9 Cell - X220)

Overview:
Features and Benefits: * Lithium-Ion (Li-Ion) technology * Nine-cell, rechargeable system battery, 94Wh * Standard system battery specifications * Over-discharge protection For more information on batteries,
| Model name | 0A36283 |
|---|---|
| Description | ThinkPad Battery 29++ (9 Cell - X220) |
| Power management | 94 Watts/Hr |
| Battery type(s) | 9 Cell Lithium-Cylindrical |
| Battery Voltage | 11.1 V |
| Note | Stay unplugged longer with ThinkPad Battery 29 (4 cell), ThinkPad Battery 29+ (6 cell) and ThinkPad Battery 29++ (9 cell). These rechargeable batteries use Lithium-Ion (Li-Ion) technology and can be used as replacement for aging system batteries or as a convenient spare battery. |