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 FAQ - Parallel/series wiring - How to.
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chopper
Moderator


Illinois
USA

1228 Posts

Posted - 10/28/2006 :  12:49:47  Show Profile  Visit chopper's Homepage  Click to see chopper's MSN Messenger address
Ok, this will be a basic parallel and series wiring how-to.

First off, lets look at what the difference is, and why you'd use one as opposed to the other. Parallel wiring takes one or more batteries and connects them to produce greater battery capacity (run time), but keeps the voltage the same. So if you have three 12 volt batteries in parallel, you'll still have 12 volts, but you'll have 3 times the battery capacity. So, in short, parallel is used to increase capacity.

Series wiring is used to increase voltage. Lets say for instance you want to make your PW 18 volts. The best way to do this is with three 6 volt batteries wired in series. Basically, you add the voltages of all the batteries in the series and you have your overall voltage. The capacity however, stays the same. So if all those 6 volt batteries are 12amp/hour, then they'll still be 12amp/hour after they're wired in series. You do not gain battery capacity in series like you do in parallel.

Now for the schematics. Both examples will assume three 6 volt batteries.

Parallel: One wire coming off positive terminal of each battery, all three wires tied together and connected to positive lead from PW vehichle. One wire coming off negative terminal of each battery and connected to negative lead from PW.

Series: Coming from PW vehicle, positive lead coming from PW to positive side of battery one. Connect a wire from negative side of battery 1 to positive side of battery 2. Then from negative side of battery 2 to positive side of battery 3. Finally, negative side of battery 3 to negative lead from PW.

Edited by - swhenrik on 10/03/2007 15:01:01

chopper
Moderator


Illinois
USA

1228 Posts

Posted - 06/04/2007 :  13:29:37  Show Profile  Visit chopper's Homepage  Click to see chopper's MSN Messenger address
Here is a couple of crude drawings I did up that might help you understand a little better.




28.15 KB


35.83 KB

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swhenrik
Moderator

Pengilly
MN
USA



4067 Posts

Posted - 08/27/2007 :  07:11:44  Show Profile  Visit swhenrik's Homepage
More info on wiring diagrams can be found here: http://www.modifiedpowerwheels.com/forum/topic.asp?TOPIC_ID=2236
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jasncab
Forum Admin

Phoenix
AZ
USA



1119 Posts

Posted - 01/03/2008 :  06:41:12  Show Profile  Visit jasncab's Homepage
More information on parallel vs series can be found here: A must read:
http://www.boatsafe.com/nauticalknowhow/marine_battery.htm
Thanks ratputin

*I work here - but don't tell your wife - she will kill me.
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