The battery condition meter fitted in my old Avondale caravan was a simple pointer registering on a red/yellow/green scale. But twenty years on, I felt it was time for something better, so on a wet afternoon a couple of weeks ago, I decided to fit a digital volt meter. I’d previously purchased item 352627865033 from ebay.
With the electric disconnected from the van, I took out the control panel, then unplugged the mains supply together with the connectors for the fridge, water and room heaters. The control unit could then be carried away to the work bench.. The leads to the volt meter were cut so that the connector was saved, and the old meter pried out of it’s fixing hole. Masking tape was then applied to the fascia so that an enlarged hole to suit the new meter could be marked out and then cut with a jig saw..
With a bit more filing, the new volt meter snapped into place. The two leads were soldered to the old plug and the joints covered with heat shrink. Connections were remade and the unit screwed back into its position within the locker. Total time – about two hours. Total cost – less than £3.