Dihusky said:Bought a couple of 110Ah Crystals for the 24v system on the 6x6, yep they are heavy, 32kg a piece, did the economics and they stacked up really well, given that they estimate an 8-10 yr life span, fully sealed so no top up, can run upside down etc though not intentionally. As previously mentioned they are a deep cycle battery NOT a start battery, also it appears their charging requirements are a bit different, need a higher current input prior to float, Betta indicated around 30A at about 14.4v so I have to do some tests with my Auto sparky so establish what the Generator is putting out.
Will probably end up charging via a combined system so the solar panels can take care of the float and not run in conflict with the engine charging system. When the engine input stops, solar takes over instead of both running at the same time as they would if wired separately.https://www.prospectingaustralia.com/forum/img/member-images/10304/1524482456_lead-crystal-batteries.jpg
A projecta IDC45 should be able to handle what you require, and no doubt Redarc would also do a unit but would be much dearer. The Crystals apparently having the charge characteristics similar to that of an AGM . From memory this unit charges solar and alt at the same time but no reason one couldn't simply put a switch on the solar input side and just turn on once camped up if you wanted to run solar and alt charge separately.