Get a cost-effective battery replacement for devices that use the old PX625 cells with the Exell A625PX 1.5v Alkaline Battery (LR09 PX625A D625 EPX625G MR09). This cell fits in perfectly into cameras, but as it is with all alkaline batteries, the voltage is not stable. It drifts down from 1.5 V to 1.35 V and then lower still. If you camera needs a steady reference voltage, you will need to adjust continuously and compensate for the the difference when using the Exell A625PX 1.5v Alkaline Battery (LR09 PX625A D625 EPX625G MR09).