How to Wire 3 12v Batteries for 36v (6-Step Guide)
I think it''s important to do this correctly to avoid frying your battery. Apart from that, you can apply most of this logic to wiring more or fewer batteries in series. Since 36V is the most common wiring type, I''m going to explain how to wire 3 12V batteries for 36V. In summary, to wire three 12V batteries for 36V, follow these steps.