Thread: 3 batteries
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Old 10-11-09, 09:47 PM
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wernmax
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Originally Posted by Orange County C
I've got a electric bike with a 24 volt system which is powered by two 12v deep cycle RV/marine batteries.

Obviously they're wired appropriately.

My question is can I add a 3rd battery to the mix by simply hooking it up to one of the original two?

Common sense tells me to hook it to one battery - positive to positive and negative to negative - thereby making the two of them the same as one ex-large 12v battery.

Exactly how would the connection be made?
As near as I can tell from reading what your asking, it sounds like your talking about adding a battery in a FIG. 1 configuration, paralleling 2 - 12V batteries then going series with a third battery in that pack to stay at 24 volts. This won't get you any more distance or amphours as you're limited by the single 12V battery in the series.

Nwmtnbkr assumes you want to add a battery to make a 36V pack as in FIG. 2, in which case you'd have to do as he says.
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Last edited by wernmax; 10-11-09 at 09:52 PM.
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