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Old 01-21-2010, 02:20 AM   #4 (permalink)
Ryland
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you want to use batteries that are all the same size and age because as you draw them down you don't want one in the string to be at a higher voltage as it has to go thru the other batteries, if they were all parallel then it would not matter as much but if it was a string in series then it matters as it can have the same affect as hooking a charger up to the dead battery backwards.
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