Product Summary: High-performance L20L4P72 15.36V 57Wh Li-polymer replacement battery for Lenovo ThinkPad T14s Gen 2 (2021). Designed for reliable business productivity with Grade-A high-capacity cells and a 1-year warranty.
Product Specifications
| Battery Model: | L20L4P72 / SB10W51914 |
| Voltage: | 15.36V |
| Capacity: | 3711mAh / 57WH |
| Battery Type: | Li-polymer |
| Cell: | Made in China, high quality guarantee |
| Color: | Black |
| Condition: | Replacement Battery (100% Brand New, 1-year warranty!) |
Replace Part Numbers
- L20L4P72
- SB10W51914
- 5B10W13976
- L20M4P72
- SB10W51915
- 5B10W51814
- L20D4P72
- SB10W51917
- 5B10W51816
- L20C4P72
- SB10W51916
- 5B10W51815
Compatible Models
- Lenovo ThinkPad T14s Gen 2 Series
- Lenovo ThinkPad T14s 2021 Series
Expert FAQ for Professional Care
- Q: Why is my battery dying fast after 2 years?
- A: After hundreds of charge cycles, all Li-polymer batteries lose capacity. A new 57Wh unit will restore all-day mobile productivity for your ultrabook.
- Q: How should I calibrate the new ThinkPad battery?
- A: Charge to 100% and then discharge to 5-10% three times to synchronize the internal BMS for accurate power level reporting on Windows or Linux.