The 57Y4133 and 45N1147 replacement battery delivers a powerful 10.8V and 100Wh capacity, engineered for Lenovo ThinkPad T440p and T540p laptops. With extended high-capacity lithium-ion cells, this pack provides maximum runtime for demanding tasks, supports both OEM part numbers and gives professionals a dependable power solution that outperforms a worn original battery and keeps productivity high during long workdays.
Specifications
| Voltage | 10.8V |
| Capacity | 100Wh |
| Battery Type | Li-ion (Rechargeable) |
| Cell Configuration | 9-Cell |
| Condition | Brand New, 100% Compatible |
| Warranty | 12 Months |
Replacement Part Numbers
- 45N1144
- 45N1145
- 45N1148
- 45N1149
- 45N1150
- 45N1151
- 45N1152
- 45N1153
- 45N1158
- 45N1159
- 45N1160
- 45N1769
- 45N1779
- 57+
- 57Y4133
- 45N1147
Compatible Models
- Lenovo ThinkPad T440p
- Lenovo ThinkPad T540p
- Lenovo ThinkPad W540
- Lenovo ThinkPad W541
- Lenovo ThinkPad L440
- Lenovo ThinkPad L540
FAQ
Q: Is the 100Wh capacity safe for my T440p or T540p?
A: Yes. The 10.8V output matches the original specification, and the higher 100Wh capacity simply provides longer runtime at the same voltage, so it is fully compatible with the ThinkPad T440p and T540p.
Q: Does this battery work with the 45N1147 part number?
A: Yes, this battery is a dual-compatible replacement for both the 57Y4133 and 45N1147 part numbers used in the Lenovo ThinkPad T440p and T540p series.