The ThinkPad Battery 29 (4 cell) ThinkPad Battery 29+ (6 cell), ThinkPad Battery 29++ (9 cell) are rechargeable batteries that use Lithium-Ion technology. They can be used as a replacement for aging system batteries or as a convenient spare battery.
|Battery Size:||Proprietary Battery Size|
|Battery Chemistry:||Lithium Ion (Li-Ion)|
|Battery Capacity:||5600 mAh|
|Battery Energy:||63 Wh|
|Number of Cells:||6|
|Output Voltage:||11.1 V DC|
|Weight (Approximate):||12.17 oz|
Lenovo ThinkPad X220 Notebook
Product images may differ from actual product appearance.