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parallel or series connections

Old 04-29-2019, 09:09 AM
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Default parallel or series connections

Iím a little confused,,,whatís the difference between a parallel connection and a series connection,,they look the same to me,,,just curious before I wire in a new esc. Thanks guys
Old 04-29-2019, 09:27 AM
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Battery cells wired in series double the voltage but capacity stays the same. Cells in parallel doesnít change the voltage but adds the capacity for every cell you add. 4 lithium cells with 5000mah capacity in series is 3.7x4=14.4v at 5000mah. 4 lithium cells with 5000mah capacity in parallel is 3.7v at 20000mah.
Old 05-06-2019, 04:44 PM
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Sorta like Qwk said
Series ADDS(not doubles) voltages, but keeps the battery capacity the same. If you wire a 2S, and a 3S battery it will be a 5S battery (Keep the current the same) this is the same with NiMh, NiCd, and all other votages.

Parallel adds the batteries capacities together, but keeps the voltages the same. In this case again would want to make sure the capacity, and specs for the cells are the same so in this case you can say it is multiplicative. So if you have a 5000mah battery you would want to do another 5000mah battery(you can technically add as many as you want) which would make your capacity 10k mah.

You want to match the cells capacity, and current draw specs so you don't over draw a cell, and damage one which could lead to failure.
Old 05-06-2019, 07:04 PM
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Lots of visual aids out there in the interwebs. Just some examples...

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