Brand: Lenovo (or compatible third-party) · SKU: 45N1148 · MPN: 45N1148 · Category: Components
This is a replacement laptop battery compatible with Lenovo ThinkPad L440, L540, T440P, T540P, W540, and W541 Series laptops. It is often referenced as the 57+ or 57++ extended run battery. Capacities vary by seller/replacement type, commonly listed as 57Wh or 58Wh with a voltage of 10.8V or 11.1V. The battery chemistry is Lithium-Ion (Li-ion) and typically contains 6 cells. It supports over 500 life cycles. Compatible part numbers include 45N1144, 45N1145, 45N1146, 45N1147, 45N1149, 45N1150, 0C52863, and others. The color is black.
| Cells | 6 (as per one source) |
|---|---|
| Color | Black |
| Voltage | 10.8V or 11.1V |
| Capacity | Typically 57Wh or 58Wh (57+ or 57++ Extended) |
| Battery Type | Li-ion |
| Compatible Laptop Models | Lenovo ThinkPad L440, L540, T440P, T540P, W540, W541 Series |
| Warranty | Varies by seller (reports indicate 6 months, 30 days, or 2 years) |
| Weight | Varies (one listing mentions 301 gm) |
| Dimensions | Varies (one listing mentions 206x51x320 mm) |
The 45N1148 is a specific part number for a high-capacity (57+) Lithium-Ion laptop battery designed for several models within the Lenovo ThinkPad T, L, and W series, such as the T440P and W540. It is a crucial replacement part to restore laptop portability and run-time.
Yes, this Lenovo ThinkPad 57+ Laptop Battery (Replaces 45N1144, 45N1149, etc.) (45N1148) is 100% genuine Lenovo (or compatible third-party) hardware. All our products are verified by certified technicians and come with clean serial numbers ready for service contract registration.
This Lenovo ThinkPad 57+ Laptop Battery (Replaces 45N1144, 45N1149, etc.) includes our standard 3-Year Warranty covering all manufacturing defects. We also offer advanced replacement options for minimal downtime.
We offer free ground shipping which typically takes 3-5 business days. Expedited shipping options are available at checkout for faster delivery.
Yes, we have a 30-day return policy on all products. Restocking fees may apply for opened items. Please see our return policy for complete details.
Please check the specifications tab for detailed compatibility information. Our technical team is available to assist with compatibility questions for the 45N1148.