Two 6 volt vs two 12 volt run time
I was just informed that two 6 volt batteries would run the residential refrigerator many times longer than two 12 volt batteries. I wonder if this is just hype?
Forum Discussion
Bob Vaughn wrote:
I was just informed that two 6 volt batteries would run the residential refrigerator many times longer than two 12 volt batteries. I wonder if this is just hype?
Yes. and No. Six volt batteries are normally GC-2. For Run time estimates you may assume they are 220 amp hours give or take 10, for the pair... You may use half of that if your inverter will let you.
On most 12 volt batteries you should not use more than a quarter of their capacity
Some numbers
Group 24 75 ah
Groups 27 and 29,, Just below and above 100
Group 31 130
But here is the kicker. a 4D or and 8D Well now we are back up to 200 to 230 amp hours. AND,,, You can get them in DEEP CYCLE (Like the GC-2) as opposed to MARINE/deep cycle (like the more common Group 27/29)
and I've used 12 volt batteries that made the 4D look like a Group 24 capacity wise.. So you see your question, as ask, can not be answered
HOWEVER this one can be: What battery gives me the longest run time per DOLLAR COST. .. That is the GC-2 Golf Car DEEP CYCLE in pairs.
