Can I run two chargers off 12v power supply? - RC Groups
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Dec 29, 2008, 07:11 PM
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Can I run two chargers off 12v power supply?

I have an 18amp power supply and wanted to know if I can run two chargers off that. Doing 1 batt an hr is killing me. Thanks
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Dec 29, 2008, 07:16 PM
Xpress..'s Avatar
Yes. I do the same with mine every once in a while, and it only puts out 20 amps. Runs cool, but will charge both batteries with it putting out 13.8v as per my accucel-6 says.
Dec 29, 2008, 07:16 PM
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Darryl Miller's Avatar
Ive had as many as 4 chargers off of my 13amp computer power supply. As long as they are not charging big lipos...(ie, 4 and 5 amps or more, ) they did fine.

Dec 30, 2008, 05:35 AM
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pentaxman's Avatar
I run 3 chargers on mine with no issues.

Just add up the current pull from each charger.

So if you are charging a 2500mAH pack, a 1200mAH pack and a transmitter pack (2000mAH) then your power supply needs to be capable of producing 2500+1200+2000= 5700mA, allow a little for losses and you are looking at a 6A minimum supply rating (CONTINUOUS).

Hope this helps.
Dec 30, 2008, 08:31 AM
Vintauri's Avatar
I do it all the time with my 30 amp power supply. As others have said just make sure your charger has the amp rating to handle what your pulling from it. I also made a multitap box with one input from the power supply and 6 outputs to the chargers.
Dec 30, 2008, 03:16 PM
Xpress..'s Avatar
Here you go

14 chargers off of 4 power supplies, each putting out 20 amps.

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