L21D4PE2 parts
L21D4PE2 Battery
| Capacity | 3700mAh |
| Voltage | 15.52V |
| Max. energy | 57.42Wh |
| Color | Black |
| Manufacturer | Sygnosis |
| Warranty | 1 year |
L21D4PE2 Original Battery
| Capacity | 3815mAh |
| Voltage | 15.52V |
| Max. energy | 59Wh |
| Cell technology | Lithium-polymer |
| Color | Black |
| Manufacturer | Lenovo |
| Warranty | 1 year |