In order to prolong the life of your SIEMENS FA299 replacement battery please read the following:

Your SIEMENS FA299 battery is charged during production in order to test it. Your SIEMENS FA299 rechargeable battery will discharge between the end of the production and the moment you receive it. That is why your SIEMENS FA299 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 SIEMENS FA299 battery and prolong the life of your camera power supply.

Your SIEMENS FA299 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 FA299 battery will discharge. If you intend to leave your SIEMENS FA299 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 SIEMENS FA299 battery.

Rather than supplying original SIEMENS FA299 batteries, we supply replacement FA299 batteries made by Uniross and Hahnel. Our FA299 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 FA299 battery.