Have a small hiace camper with dual battery setup .. one agm battery ( Anderson connected)100amp charged whilst driving and will supplement this when stopped using a 150 watt solar panel .. power needed mainly for fridge and water pump .
Have read on a few posts that people recommend a dc to dc charger hooked up as well .
Are these suitable for agm or just lead acid battery setup ?
Need some more information....
What type of fridge is it? Don't even think about running a 3 way gas fridge on 12V with that set up unless you are driving.
What is the voltage output of the alternator and is it a 'smart' alternator. If it is an old style alternator with reasonable (14.2V) output and the cables to the house battery are adequate size, you may not need a DC-DC charger, but a voltage sensitive relay would be useful. You may already have that?
Good quality DC-DC chargers are suitable for AGMs.
Hi I have a waeco cf 50 chest style fridge 240 and 12 volt I currently have no issues with system. Alternator from 2010 hiace charges well only done 40000km and was told the dc to dc setup is the best way to go!! and better than my current one ? no sense in wasting money .
I think that I will take your advice and keep using my current setup ... as they say if its not broken why change lol !!!