Kevin Taylor

Presumably the battery voltage will start to drop.

Thanks for the help guys, fitting another battery seems to have worked, but need to give it a few days to make sure that it is being charged.

I Have an Optima Compact fitted with a Honeywell AG6 external bell box. On return from holiday the control panel was totally unresponsive. However there is power to the panel. The mains input is ok, and the feed from the transformer to the panel is reading 17v a.c. which is normal. But the battery is down to 3v which indicates that it is not being charged. Does this mean the PCB has failed and I need a new panel. Any suggestions please.