The hama cga s007e is a direct replacement battery for the panasonic type cga s007 the power output of the battery is 37v 800mah and offers equivalent power of the official battery at a snip of the original price lithium ion batteries have no memory effect and therefore do not need to be discharged lithium cells generally hold the initial charge and can be left for weeks before needing a rechargeonly the most modern battery technology is used in hama lithium ion batteries they are environm