If you are hooking batteries up in parallel, connect all of the positive terminals together then connect all of the negative terminals together. The series example shown in Figure 1 works out to be 36 V with a 1 A current capacity.įigure 1: Series battery circuit showing a load 36 V with a 1 A current capacity.
This will provide you with extra voltage for the load, but no extra current (I total = I 1 = I 2 etc.). The following formula applies to series circuits: (V total = V 1+V 2 etc.). If you are hooking batteries up in series, connect the positive terminal of one to the negative of the next, and so on.
It is good practice to only connect batteries of identical capacity, type, and age. Have a project and you just can’t find the battery capacity you need at the right price or size? Sometimes a viable solution is to connect multiple batteries in series, parallel, or a combination of the two.
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