In order to prolong the life of your NEC CV40U replacement battery please read the following:
Your NEC CV40U battery is charged during production in order to test it. Your NEC CV40U rechargeable battery will discharge between the end of the production and the moment you receive it. That is why your NEC CV40U 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 NEC CV40U battery and prolong the life of your camera power supply.
Your NEC CV40U 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 CV40U battery will discharge. If you intend to leave your NEC CV40U 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 NEC CV40U battery.
Rather than supplying original NEC CV40U batteries, we supply replacement CV40U batteries made by Uniross and Hahnel. Our CV40U 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 CV40U battery.
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