In order to prolong the life of your CANON A9E replacement battery please read the following:

Your CANON A9E battery is charged during production in order to test it. Your CANON A9E rechargeable battery will discharge between the end of the production and the moment you receive it. That is why your CANON A9E 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 CANON A9E battery and prolong the life of your camera power supply.

Your CANON A9E 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 A9E battery will discharge. If you intend to leave your CANON A9E 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 CANON A9E battery.

Rather than supplying original CANON A9E batteries, we supply replacement A9E batteries made by Uniross and Hahnel. Our A9E 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 A9E battery.