charger

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RAZMATIC
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charger

Post by RAZMATIC » Fri Jun 16, 2006 8:25 pm

i just wanted to know is there a way to charge two rc batterys at the same time with one charger.
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vskid
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Re: charger

Post by vskid » Fri Jun 16, 2006 8:30 pm

RAZMATIC wrote:i just wanted to know is there a way to charge two rc batterys at the same time with one charger.
You'll have to do some chopping, just wire them in parallel, it will take twice as long. Wait for a second opinion, though, because I'm not positive.
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daguuy
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Post by daguuy » Fri Jun 16, 2006 9:26 pm

yeah, just put them in parrallel and it should charge fine but half as fast.
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Post by RAZMATIC » Sun Jun 18, 2006 9:22 pm

what would be the best way to hook up two 7.2 rc battery up to a gamecube.
and i dont have the 7.2 rc battery charger to it. please help
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Post by vskid » Sun Jun 18, 2006 9:30 pm

RAZMATIC wrote:what would be the best way to hook up two 7.2 rc battery up to a gamecube.
and i dont have the 7.2 rc battery charger to it. please help
Doesn't the GC need 12v? So you would need to put them in series, but I don't know if 14.4v is too much.
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Post by RAZMATIC » Sun Jun 18, 2006 9:53 pm

14.4 is fine but how would i charger it
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Post by vskid » Sun Jun 18, 2006 9:58 pm

RAZMATIC wrote:14.4 is fine but how would i charger it
Without a charger for the batteries, it is kind of risky to charge. You can just hook it up to a 12v power adapter (one at a time) and divide the battery capacity by the charger amp output to find out how many hours to leave it on (I think about .5 amps is good for the wall adapter). 7.2v batteries get to about 8.4v (I think) when charged, so you have to consider that, too.
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RAZMATIC
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Post by RAZMATIC » Mon Jun 19, 2006 1:05 pm

can someone make me a picture how its sould be
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timmeh87
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Post by timmeh87 » Mon Jun 19, 2006 1:34 pm

discharging batteries in parallel is 'not reccomended' without some careful thought and/or circutry, they will charge each other, and probably oscillate in that manner.

however, when you are charging batteries its probably fine. as far as i know (never really studied mine), most AA nimh battery chargers charge in parallel, as well, the solarcar has 108 battereis, 27 in series with groups of 4 in parallel. the whole thing is charged as a unit with one massive power supply, and nobody seems concerned about it. (these are lithium polymer batteries too).

im not exactly sure about the exact science of the matter, im just citing some observations that i have made
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Post by Metroid fan » Mon Jun 19, 2006 4:58 pm

GC needs 12 volts just so you know and if you get anything get some Li-polys with protection circuit or better yet just buy the GC battery...
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