Here’s the rule – series doubles the voltage, parallel provides longer power.
“But how am I supposed to connect my battery if I want to double the capacity but not the voltage?”
It can be confusing if you’ve never done it, but hopefully this will make it easier. Let’s give you a picture to show how it is done –
Connecting in Series
When connecting your batteries in series you are doubling the voltage while maintaining the same capacity rating (amp hours). Just use a jumper wire of sufficient gauge (usually 2 – 8) between the negative of the first battery and the positive of the second battery. Run your negative wire off of the open connector from the…
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