Stay unplugged longer with these genuine Lenovo batteries. These rechargeable batteries use Lithium-Ion technology and can be used as replacement for aging system batteries or as a convenient spare battery.<br><br>The ThinkPad Battery 57+ (6 cell) features:<br><br>- Lithium-ion technology<br>- 6 cell system battery<br>- Over-discharge protection to prolong the life of the battery<br>- Battery energy (Watt-hours): 57Wh<br>- Battery Safeguard chip authenticates with Lenovo systems Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.
| Type | Battery |
| Depth | 51.5 mm |
| Width | 206.2 mm |
| Height | 20.1 mm |
| Weight | 330 g |
| Product colour | Black |
| Battery voltage | 10.8 V |
| Battery capacity | 57 Wh |
| Battery technology | Lithium-Ion (Li-Ion) |
| Compatible products | ThinkPad T440p, L440, L540 |
| Number of battery cells | 6 |
| Harmonized System (HS) code | 84732990 |