Replacing 12-volt batteries with 6-volt
Have you replaced two 12-volt batteries in parallel with two 6-volt batteries in series to improve ampere hours? Were the results satisfactory? Please elaborate. Was the rewiring difficult?
Forum Discussion
ktmrfs wrote:
6V advantage
1) can take 500+ charge discharge cycles to under 50% (more like 25%) SOC
Disadvantage:
do NOT work well with high current loads, like even 1000W inverter. First ALL the current is coming from each battery vs 1/2 the current from each battery in a similar parallel 12V, Next, they have much higher internal resistance than a 12V which means more voltage drop
6V vs 12V IMHO really depends on YOUR application. If you only occasionally dry camp, or often use high inverter loads, then 12V may be a better alternative.
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Note that I have for a out 6 years routinely run my Coleman Mach 1 P.S. 11kbtu air conditioner for brief periods (up to an hour or more concurrent with 440w solar) from two 6v GC’s without a hitch (via ProSine 2.0 - 04 aught cables), with locked rotor starting amps at about 140amps - now running Costco GC’s...Cables do MATTER...
