This high-capacity NP-20 Rechargeable Lithium-Ion Battery (3.7v, 680mAh) is a replacement for the Casio NP-20 battery. It features lithium technology, which ensures maximum battery life and maximum power. It also features no memory effect that lets you recharge partially drained batteries without reducing performance.
| Chemistry | Lithium-Ion |
| Output Voltage | 3.7v |
| Capacity | 680mAh |
| Dimensions | 2.9 x 1.4 x 0.3" |
| Weight | 0.9 oz (26g) |