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Old 11-23-2007, 11:51 PM   #31
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TNX FOR THE REPLIES
ANY DETERMINING FACTOR ON HOW TO SEE IF IT IS NEW OR OLD?
The safe way currently is to purchase the new 3600. The 4800 and 3200 are older, but they could have changed over to the new cells for these, now it time to see how they cycle into the channel...
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Old 11-24-2007, 08:38 AM   #32
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Thats not exactly true, good Nimh batteries have an efficiency of about 78% to 80% (the average Nimh battery is around 70% efficient). Where lipos have an efficiency of 98%. With a 4200 Nimh battery you would take out around 3360mah if your charger gave to accurate readings. And with a 3200 Lipo you would take out 3136mah.
So what happens to the rest of the energy in the NiMH pack then?
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Old 11-24-2007, 08:45 AM   #33
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So what happens to the rest of the energy in the NiMH pack then?
heat,.. lipo packs don't get hotter as they charge and they don't get hot as you run them
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Old 11-24-2007, 09:07 AM   #34
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My EP4200 NiMHs don't get hot when I race 19T. So I guess I still have that 30% energy in there somewhere?
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Old 11-24-2007, 02:37 PM   #35
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So what happens to the rest of the energy in the NiMH pack then?
It gets lost as heat, have you noticed how much hotter Nimh's get compared to Lipo.
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Old 11-24-2007, 03:41 PM   #36
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My EP4200 NiMHs don't get hot when I race 19T. So I guess I still have that 30% energy in there somewhere?
Gear it up. :-)

Last edited by Ted Flack; 11-25-2007 at 05:40 AM.
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Old 11-25-2007, 04:15 AM   #37
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Motors are overheating before NiMH cells in 19T racing. NiMH cells can handle the current demands at a canter. Gearing is perfect. Thanks anyway.

BRCA will be allowing LiPo to go head to head with NiMH at the same weight next year. Will give a lot of answers to questions people are asking. Might surprise/disappoint a few people too I am sure.
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