mforrence

This is a common issue with older Partner systems. There is a battery soldered onto the main board. If you're able, you can replace and life will be good. Requires soldering skill (the existing is thru-pin, not surface mount) and the correct replacement battery. Or have a local electronics firm do the replacement - or send for repair. If you're using for training, another option is to just live with it... part of the training can be reprogramming every time you use it.

Good luck!
Mike