6v vs 12v battery question
I have two battery questions that I can't find answers to. I'm hoping that the questions are not too stupid. 1. Amp-hour ratings - when I look at battery specs, I see different amp-hour ratings fo...
Forum Discussion
When wiring batteries in series.
1: They must be indentical Same size, make, model, age, and so on.
2: YOu add volts. NOT capacity (So in your example of two 100 amp hour batteries in series you get 100 amp hours.. at 12 volts)
You should treat each pair of six volt batteries EXACTLY as you would a single 12 volt battery .. For that is what they are.
Wiring 12 volt batteries in parallel
1: THey need NOT be identical.. but it is not a good idea to mix different technoligies (IE: AMM and Flooded wet) Not that some do not go it with good results.
2: You add CAPACITY, not voltage,, So a Group 24 (75ha) and a group 31 (130) give you about 205...
But wait there is more.
Six volt batteries are usualy DEEP CYCLE, designed to go down to half full before serious damage sets in
MARINE/deep cycle are NOT DEEP CYCLE (note case) you really should not take them to half. 70 percent perhaps (I do not know for sure what the lower state of charge is) but not half.
Starting batteries and MARINE without mention of Deep cycle are even worse
1: They must be indentical Same size, make, model, age, and so on.
2: YOu add volts. NOT capacity (So in your example of two 100 amp hour batteries in series you get 100 amp hours.. at 12 volts)
You should treat each pair of six volt batteries EXACTLY as you would a single 12 volt battery .. For that is what they are.
Wiring 12 volt batteries in parallel
1: THey need NOT be identical.. but it is not a good idea to mix different technoligies (IE: AMM and Flooded wet) Not that some do not go it with good results.
2: You add CAPACITY, not voltage,, So a Group 24 (75ha) and a group 31 (130) give you about 205...
But wait there is more.
Six volt batteries are usualy DEEP CYCLE, designed to go down to half full before serious damage sets in
MARINE/deep cycle are NOT DEEP CYCLE (note case) you really should not take them to half. 70 percent perhaps (I do not know for sure what the lower state of charge is) but not half.
Starting batteries and MARINE without mention of Deep cycle are even worse
