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› NiMh capacity lower than spec?
04-27-2004 01:53 PM  13 years agoPost 1
playfair

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Rochester, NY

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I have a Triton and (3) 7 cell sub C packs for my corona. When new, the (2) GP3300's (matched) would routinely charge to capacity or greater. This was setting the peak detect to .3v per cell and it didn't much matter if I charged at .3 or 3.3 amps.

Now, after about 30-40 charges per pack, I'm lucky to get 2500-2800 ma into the packs. I increased the Vpeak to .5v per cell, and it helped to get close to 2800-3000.

What are you guys running your cutoff at? Any advice? Figure I'm loosing at least a minute of flight time with this capacity loss...

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04-27-2004 06:42 PM  13 years agoPost 2
Glenn in Den

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Longmont, Colorado area

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What happens when you charge the "full pack" again? Add up the total of the two (or even three) charges.

You could be getting false peaks.

Don't use "auto mode." Set a charge current you like.




Glenn.

I'm not really an R/C pilot, I stayed in a Holiday Inn Express last n

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04-29-2004 04:28 AM  13 years agoPost 3
playfair

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Rochester, NY

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Thanks Glenn.
If I start a second charge I may get another 300 ma added. I was using the "top off" trickle as well, but then you never know how much your initial charge was. I never have used auto mode, just 3.3 a when in a moderate hurry, 1 amp sometimes and the last pack usually gets .3a
I alternate which ones get the different levels as well.

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05-06-2004 05:06 AM  13 years agoPost 4
iskoos

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Orlando, FL

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We discussed the similar topic today.
Go ahead and read, you may find what you are looking for.

http://www.runryder.com/helicopter/t104956p1/

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› NiMh capacity lower than spec?
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