The Pearstone D-LI90 Rechargeable Lithium-Ion Battery Pack is specifically designed to replace the Pentax D-LI90 battery, used with Pentax K-7 & 645D cameras. Small and lightweight, Lithium-Ion batteries can be charged or discharged at any time without developing memory effects.
| Chemistry | Lithium-Ion |
| Capacity | 7.4V |
| Output Voltage | 1700mAh |