Our D-LI63 li-ion battery is rated at 850mAh and designed to power Pentax Optio cameras. The D-LI63 is guaranteed to meet or exceed OEM specifications. The battery is fully compatible with the following camera models: Pentax Optio V10 Pentax Optio T30 Pentax Optio M30 Pentax Optio M40 Pentax Optio W30 Pentax Optio LS1000 Pentax Optio LS1100 and more models. Best replacement for the following OEM battery part numbers: Pentax D-LI63, DLI63, Pentax D-L163, DL-163, DL163.