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Experience RC . Heli-Max . Hobby Hut

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Main Discussion > Series / parallel charging
 
 
Twrecks600
Senior Heliman
Location: Round Rock, Texas

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What is the correct way to charge 2 packs at once? For example: I have 2 - 4s, 4000 mAh, 25c packs that I fly in a Trex 600 EP that I have been charging / balancing in series and have had no issues charging them at 1 or 2c but I was told by a friend of mine that I should be charging the batts in parallel.

What is the benefit of one method over the other (or is there one)?

Any and all info would be appreciated!!
11-02-2009 05:18 AM
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ShuRugal
Senior Heliman
Location: Blacksburg, VA

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depends on what your charger can handle. Charging them in series will require higher voltage output, but not as much amperage. Charging in parallel will require more amperage, but less voltage.

I would prefer to charge in series if the charger were up to the voltage output, because lower amperage in the leads means less likely to catch something on fire.

either way, you should obviously have both packs on the same balancer.

AMA 700159
11-02-2009 05:42 AM
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stanc
Key Veteran
Location: Conroe, TX

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Read this Post.

If your charger can charge 2 x 4S packs or 8S, it would be better to charge in Series and balance both packs. If it can't then you can charge 2 x 4S in parallel but maybe not a 2C unless your charger can handle the amps.

Stan
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11-02-2009 11:58 AM
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Heli Wholesaler . JR-Spektrum . E-flite

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Main Discussion > Series / parallel charging
 
 
Twrecks600
Senior Heliman
Location: Round Rock, Texas

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I always thought it was better to charge in series over parallel.
11-03-2009 10:28 PM
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Experience RC . Heli-Max . Hobby Hut

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Main Discussion > Series / parallel charging
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