In order to prolong the life of your Jenoptik JD800i replacement battery please read the following:

Your Jenoptik JD800i battery is charged during production in order to test it. Your Jenoptik JD800i rechargeable battery will discharge between the end of the production and the moment you receive it. That is why your Jenoptik JD800i 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 Jenoptik JD800i battery and prolong the life of your camera power supply.

Your Jenoptik JD800i 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 JD800i battery will discharge. If you intend to leave your Jenoptik JD800i 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 Jenoptik JD800i battery.

Rather than supplying original Jenoptik JD800i batteries, we supply replacement JD800i batteries made by Uniross and Hahnel. Our JD800i 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 JD800i battery.