The NP-BX1 Lithium-Ion Battery Pack from Pearstone is designed to replace the Sony NP-BX1 battery. Small and lightweight, lithium-ion batteries can be charged or discharged at any time without developing memory effects.
| Chemistry | Lithium-Ion |
| Output Voltage | 3.7 V |
| Capacity | 1100 mAh |
| Dimensions | 1.2 x 0.4 x 1.7" (3.0 x 0.9 x 4.3 cm) |
| Weight | 0.9 oz (25 g) |