In article ,
Harry Collingwood wrote:
Thanks for that but is not like my caravan battery with top up
cells.This one is completely sealed with no way to check.I suppose you
buy new when it looks knackered.Regards

There are clever electronic testers that give chapter and verse on a
battery's condition these days. Any decent supplier should have one and
test it for free.

--
*Too many clicks spoil the browse *

Dave Plowman London SW
To e-mail, change noise into sound.