PANASONIC PV-A307 camcorder battery Description
This PANASONIC PV-A307 camcorder battery has passed strict quality assurance procedures to achieve international standards such as CE, UL Listed, and/or ISO9001/9002 certification. All purchases in our battery & battery charger store 30 days money back guarantee. In addition, PV-A307 Camcorder Batteries are warranted for a full year to ensure your complete satisfaction

How can you use your new PV-A307 battery
Your new PV-A307 battery must be completely charged and discharged before use. The long period of transition from factory to customers during which the idleness of battery may passivate its electrode material. So upon initial use the PANASONIC PV-A307 battery may require three complete charge/discharge cycles in order to avoid passivation and activate the PV-A307 batterys performance and maximize its capacity. Meanwhile, As there is the data transmission agreement port between PV-A307 camcorder battery and laptop, it takes 2-3 charge and discharge cycles before the batterys actual capacity percentage is in sync with the percentage displayed by laptop. Cycling approach: Put the PV-A307 battery into laptop and charge/discharge it until the laptop shutting down. Then charge the battery again. Charge time must exceed 12 hours. Repeat three times.

How to store battery when it is not in use for a long time? It should be fully charged or discharged?
Storing the batteries at full discharge for long period of time will have the PV-A307 battery cells lose their activity, even have the control circuit protection self-closed which resulted in its inability to be re-used. Storing the PV-A307 Camcorder Batteries at full charge will have battery safety jeopardized. The best way to store the batteries is to keep the batteries at cool and dry places at optimal temperature of about 20 degrees with only about 50% capacity remained. Off course, getting the battery out every month for use is the best way to keep the battery at excellent storage state and PV-A307 battery power free from flowing away completely which could damage the battery.