In order to prolong the life of your ROWNSONIC S40 replacement battery please read the following:

Your ROWNSONIC S40 battery is charged during production in order to test it. Your ROWNSONIC S40 rechargeable battery will discharge between the end of the production and the moment you receive it. That is why your ROWNSONIC S40 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 ROWNSONIC S40 battery and prolong the life of your camera power supply.

Your ROWNSONIC S40 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 S40 battery will discharge. If you intend to leave your ROWNSONIC S40 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 ROWNSONIC S40 battery.

Rather than supplying original ROWNSONIC S40 batteries, we supply replacement S40 batteries made by Uniross and Hahnel. Our S40 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 S40 battery.