In order to prolong the life of your SIEMENS FA289 replacement battery please read the following:

Your SIEMENS FA289 battery is charged during production in order to test it. Your SIEMENS FA289 rechargeable battery will discharge between the end of the production and the moment you receive it. That is why your SIEMENS FA289 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 FA289 battery and prolong the life of your camera power supply.

Your SIEMENS FA289 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 FA289 battery will discharge. If you intend to leave your SIEMENS FA289 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 FA289 battery.

Rather than supplying original SIEMENS FA289 batteries, we supply replacement FA289 batteries made by Uniross and Hahnel. Our FA289 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 FA289 battery.