Purchase Asus X521J batteries
Asus X521J battery
| Capacity | 3400mAh |
| Voltage | 11.55V |
| Max. energy | 39Wh |
| Cell technology | Lithium-polymer |
| Color | Black |
| Manufacturer | Sygnosis |
| Warranty | 1 year |
Asus X521J original battery
| Capacity | 4335mAh |
| Voltage | 11.55V |
| Max. energy | 50Wh |
| Cell technology | Lithium-polymer |
| Color | Black |
| Manufacturer | Asus |
| Warranty | 1 year |
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