The DMW-BLE9 brings hours of life to compatible LUMIX digital cameras. Features a 940mAh capacity and 7.2V of output power. Its a lithium-ion battery which can stand repeated chargings without damage, maintaining its full potency for the long term Chemistry: Lithium-ion (Li-ion) Output voltage 7.2 V DC, 6.8Wh Battery size: Proprietary Battery capacity 940mAh Battery rechargeable: Yes