Replacement for PANASONIC CGA-DU21 battery

PANASONIC CGA-DU21 Camcorder Batteries maintenance methods:

 To avoid power loss,You should keep the battery contacts and the inner of battery cover cleaning.To use soft, clean, dry cloth to wipe the dirt if the battery surface is dirty. Don't use detergents with solubility to clean your PANASONIC CGA-DU21 camcorder,PANASONIC CGA-DU21 battery and charger.
 The charging time depends on the charger,PANASONIC CGA-DU21 rechargeable batteries and such factors as the stability of voltage.Usually,It must be over 6 hours the first time to charge the PANASONIC CGA-DU21 Camcorder Batteries.Otherwise,the PANASONIC CGA-DU21 Camcorder Batteries will be shorter in future.Try not to repeat charging when there is residual power capacity.
 To avoid excessive discharge,excessive discharge is the energy consumption goes beyond the limit.It will do harm to the PANASONIC CGA-DU21 Camcorder Batteries.As the over-discharge could decrease the efficiency of battery charge,don't let the PANASONIC CGA-DU21 Camcorder Batteries running to make the camera shut down automatically.
 If you won't use the camera a long time,you should remove the PANASONIC CGA-DU21 Camcorder Batteries from camcorder or charger and stored the PANASONIC CGA-DU21 Camcorder Batteries in a dry, cool environment.To avoid putting the PANASONIC CGA-DU21 Camcorder Batteries with metal objects stored together,In order to avoid short-circuit,you'd better use the protective cover to cover the PANASONIC CGA-DU21 Camcorder Batteries.