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Old 04-05-2009, 11:48 AM   #1
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Default Onyx 200 charging Venom 5000 Nimh ?

I am new to the Electric off road seen and im running a Spec Slash and i just bought a Venom Nimh 5000mah pack and the charger i have is a Onyx 200.

What amp should i charge at? 1.5/3/5?

And what else should i look out for when charging this battery?

Should i take temps of the battery to make sure it does not get over heated?

Just want to wast and burn up a 70$ battery.

Thanks Lance
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Old 04-05-2009, 12:05 PM   #2
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Charge at 5A, it will still take about an hour to charge. Most NiMh's can be charged at fairly high rates without damage, I charged my 3300's at 5A all the time (only used them for ~20 cycles though) but their performance didn't diminish at all.
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Old 04-05-2009, 07:50 PM   #3
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How long will it take to charge @ 3amps?

If they take so long to charge what do i need to do when i go race in between rounds of qualifing i only have one battery or should i pick up another battery? My local track usually has two 5 min rounds and a 10min main.
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Old 04-05-2009, 08:05 PM   #4
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Rough time estimate for charging - batt capacity in mah divided by charge rate in ma (amps time 1000) = hours. This assumes batt is empty which it never is and that batt has no internal resistiance to charging, which it does. Charging at 3a compared to 5a will take about 2/3 longer, the hour would turn into 100 min or 1hr, 40min.

Think you need at least one more batt, but I'll defer to some of the racers around here on that one.
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Old 04-05-2009, 08:05 PM   #5
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It would take about 1 2/3 hours on 3A.
How long is it between rounds?
In my spec Slash I only used about 1500-2000mAh per round, so a 5000 should have no problem in those 3 rounds.
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Old 04-05-2009, 09:03 PM   #6
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So i could run 2 rounds and a 10 min main on one charge?
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Old 04-05-2009, 09:06 PM   #7
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I would keep it on the charger between rounds but you should make it no problem.
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