The answer depends on many things.
Do you "Boondock" or camp without power often? The bigger the battery the better the battery the batteries are bigger... Well..
Do you always camp WITH power You can get by with less.
Are you JUST running control power to the Fridge. Water heater or are you gonna need the Furnace..
Do you use an inverter to run the TV or Nuke lunch?
The more you do the more you need.
For light use a Group 31 MARINE/deep cycle or a GC-12 would be my suggestion.
For most a pair of GC-2 (These are six volt) in series I really like the GC batteries as they are True DEEP CYCLE not MARINE/deep cycle (note how I change case)
For heavy use.. 2, 3 or 4 pair of GC-2
Some numbers
MARINE/deep cycle (Group batteries) you should not use much more than 25%
And GC (Gold Car DEEP CYCLE) 50%
now
Group 24 about 70-75 Amp hours each
Group 27 and 29 Just under/over 100 Amp Hours Each
Group 31 120-130 Amp Hours
GC-2 is about 220 amp hours give or take 10
And a GC-12.. I'd have to double check but about 150 (US battery says 155)
(my memory still working
๐ )
as I said the GC types you can use half the amp hours.
Now we get into exotics like LiFePO4... you can use close to 100% but they cost more and are less flexible when it comes to the enviornment.. They do not like it if it gets too hot or cold.
Home was where I park it. but alas the.
2005 Damon Intruder 377 Alas declared a total loss
after a semi "nicked" it. Still have the radios
Kenwood TS-2000, ICOM ID-5100, ID-51A+2, ID-880 REF030C most times
