Sony NP-FM500H Rechargeable InfoLithium BatteryItem information: Condition: New in original packaging Model Name: NP FM500H Output Voltage: 7. 2 VDC Description: The Sony NP FM500H Rechargeable Lithium Ion Battery can be charged or discharged at anytime without developing memory effect. This means that it never loses its ability to hold a full charge. InfoLithium battery packs have a built in micro processor that accurately calculates remaining battery life in minutes, and they also display