In order to prolong the life of your NIKON NP55 replacement battery please read the following:

Your NIKON NP55 battery is charged during production in order to test it. Your NIKON NP55 rechargeable battery will discharge between the end of the production and the moment you receive it. That is why your NIKON NP55 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 NIKON NP55 battery and prolong the life of your camera power supply.

Your NIKON NP55 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 NP55 battery will discharge. If you intend to leave your NIKON NP55 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 NIKON NP55 battery.

Rather than supplying original NIKON NP55 batteries, we supply replacement NP55 batteries made by Uniross and Hahnel. Our NP55 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 NP55 battery.