6 volt versus 12 volt HELP
I have 2005 keystone TT I currently have 2 12 volt batteries that are shot. I have enough space for 3 batteries. About half our camping is boondocking. Am I better off replacing with 2 6 volt batter...
Forum Discussion
Can you "3 sixes" guys not see that you'd have one of 3 states
Six volt battery bank
Eighteen volt battery bank
(Note that neither of these meet the 12 volt need of the RV)
Or a battery bank that would think it had two batteries in parallel one with 3 shorted cells (Good way to kill batteries)
Or a battery bank where you had one BIG and one Small battery in SERIES (Again will not work).
You need two sixes and a 12.
And teh concerns about "It will not accept charge at the same rate" are groundless, True, but groundless. I've proven it over and over. (By testing)
There are two ways to calculate charge rate, Amps and %charge
If you have a 200 amp battery and a 100 amp battery in parallel, and you charge at 30 amps (just to make it easy) then the big one gets 20 amps and the small one 10.. If you draw 30 amps, the big one supplies 20 and the small one 10,
But the state of charge on the two.. LOCK STEP, absolutely the same at all times. For if by some means one is higher than the other. Well then the other takes more of the charge till it catches up (or gives less on discharge).
YOu can not use 3 sixes, 3 pair yes, 3 no, Sixes must be even numbered, but you can use 2 six + one 12.
Six volt battery bank
Eighteen volt battery bank
(Note that neither of these meet the 12 volt need of the RV)
Or a battery bank that would think it had two batteries in parallel one with 3 shorted cells (Good way to kill batteries)
Or a battery bank where you had one BIG and one Small battery in SERIES (Again will not work).
You need two sixes and a 12.
And teh concerns about "It will not accept charge at the same rate" are groundless, True, but groundless. I've proven it over and over. (By testing)
There are two ways to calculate charge rate, Amps and %charge
If you have a 200 amp battery and a 100 amp battery in parallel, and you charge at 30 amps (just to make it easy) then the big one gets 20 amps and the small one 10.. If you draw 30 amps, the big one supplies 20 and the small one 10,
But the state of charge on the two.. LOCK STEP, absolutely the same at all times. For if by some means one is higher than the other. Well then the other takes more of the charge till it catches up (or gives less on discharge).
YOu can not use 3 sixes, 3 pair yes, 3 no, Sixes must be even numbered, but you can use 2 six + one 12.
