Numax have brought out a new 113amp hour sealed unit leisure battery, for caravans. It has been designed especially for heavy use such as the use of motor movers. It is on the Numax web site. I am about to collect one from my dealer in two weeks.
I have had a Numax gel battery since July when we bought a new Abbey Vogue. This battery has been find with the movers etc. Great not having to fiddle about with distilled water, been charged with a C-tek charger with no problems at all.