How do I charge 12 volt batteries wired in parallel?

Answer Same Type of BatteriesMake sure the 12 volt batteries are of the same type (starting, deep cycle, marine, auto, sealed, gelled). Different type batteries cannot be charged in parallel or you can de... Read More »

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Can you use two 12-volt batteries wired in series with a 12-volt trolling motor?

No. Wiring in series stacks the voltage being delivered. Two 12-volt batteries in series deliver 24 volts, which causes permanent damage and a fire hazard in a 12-volt trolling motor. Wire the batt... Read More »

Is it okay to connect a 3.7 volt li-ion (900mAh) and a 3.7 volt li-ion (1000mAh) batteries in parallel?

I don't recommend doing it. Before that, though, if you're trying to increase the mAh rating, then parallel connection of two identical voltages will do what you want. Voltages in series will add... Read More »

How to Wire 2 12 Volt Batteries in Parallel?

There are essentially two different and distinct ways to wire 12 volt batteries. One of the ways is called wiring in sequence, and the other way is called wiring in parallel. When batteries are wir... Read More »

How Do I Hook Two 12 Volt Batteries in Parallel?

Hooking batteries in parallel increases the ampere-hour rating of the combined batteries without increasing the voltage. This increases the capacity of the battery and the run time of the device it... Read More »