In order to prolong the life of your Sanyo VPC380Z replacement battery please read the following:

Your Sanyo VPC380Z battery is charged during production in order to test it. Your Sanyo VPC380Z rechargeable battery will discharge between the end of the production and the moment you receive it. That is why your Sanyo VPC380Z battery will have to be charged before you use it. You can use your existing charger or an external charger this will optimize charging of your Sanyo VPC380Z battery and prolong the life of your camera power supply.

Your Sanyo VPC380Z rechargeable battery discharges slowly and progressively when not in use. The self discharge rate is about 1% of the battery's capacity per day at room temperature. The higher the temperature, the faster your VPC380Z battery will discharge. If you intend to leave your Sanyo VPC380Z battery for a prolonged period without use then a service charge is recommended from time to time, taking in to account the self discharge rate and time between using your Sanyo VPC380Z battery.

Rather than supplying original Sanyo VPC380Z batteries, we supply replacement VPC380Z batteries made by Uniross and Hahnel. Our VPC380Z batteries have a two year warranty, represent excellent value and meet or exceed the original specifications. We also offer free delivery on all our products including the VPC380Z battery.