Fao don kee , hi I've still got problems with this even though I've had a sterling power battery to battery charger fitted , have you got the contact details of your auto electrician in Bristol thanks alam
01454 323 500 - mark
I've not had to bench charge my 110ah battery in 3/4 months, even with two pumps running, although the van is obvs on for a long enough period of time to charge the bat (I usu it to go to the gym and various bits of running around as well)
I'd be tempted to get an inline volt metre first and see whether your sterling is working, got to be honest I've only heard good things about the sterling chargers
Ring Mark anyway though, he might be able to talk you through the sterling before anything else; he's a pretty helpful chap and will usually advise you before making you part with any coin!