To switch from two 6 volt batteries to a single 12 volt you can simply connect all power to the positive terminal and the negative connects directly to the frame ground. Charging batteries again can save you time and energy instead of buying new batteries.
Nine Volt Battery Wikipedia
2 6 volt batteries in series vs 1 12 volt. The 6 volt batteries you currently have is set up in series. The more batteries you add obviously the more current youll be able to store. Learn about charging 6 volt batteries in series with 12 volt charger by following these steps. Obviously i cant use 3 6 volt batteries in series. It seems they dont last as long as they used to. Two 100 amp hour 6 v batteries in series have the sam capacity as one 100 ah 12 volt battery.
My battery box has room for 3 batteries. Jump start procedures preparing your batteries for winter advantages and disadvantages of using two 12 volt batteries connected in parallel or two 6 volt batteries connected in series. Charging two 6v batteries in series helps you understand what happens on a physical level when charging batteries. Two trojan 6 volt batteries wired in series yields about 225 amps at 12 volts. A 6 volt battery weighs significantly less than 12 volt batteries so much so that a single person will have no problem handling it. So i will change them soon.
It would appear that there is no significant difference in capacity and voltage between these two examples. Fuses or circuit breakers for each battery should be used to prevent a good battery discharging high current into a failed battery with a shorted cell for example. Four 6 volt batteries wired into a series parallel configuration as another example will provide about 450 amp hours of use. So my choices are 2 6 volt or 3 12 volt batteries. Because it is important to shave weight wherever possible so you can improve the fuel efficiency of your rv having lighter batteries is always a good idea. Two 12 volt batteries in parallel have twice the capacity of the six volt series but the 12 volt parallel connection is a dangerous fire and explosion hazard.
I have 2 6 volt batteries now and they are more than 5 years old. However i could use 3 12 volt batteries in parallel.