Specification for Re-battery: Li-Ion; 18650,MR18650; 3.7V; 4000mAh; Ø18.5x70.5mm; 8A
| Maximum current | 8A |
| Capacity | 4Ah |
| Quantity in package | 2pcs. |
| Rated voltage | 3.7V |
| Cell size | 18650, MR18650 |
| Type of rechargeable battery | Li-Ion |
| Rechargeable batteries features | high output current, PCB protection |