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Old 02-05-2003, 11:30 AM   #1
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Default cycling batteries

If you use charging devices that provide cycling capabilities, how many times should a battery be cycled at once and how often? My understanding is a cycle is a charge then discharge (?) Thanks for any input.
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Old 02-05-2003, 01:48 PM   #2
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yes, 1 cycle is charge then discharge, i usually cycle my packs 3 times every once in a while...i run ni-mh's, what do you use?
also what charger have you got?
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Old 02-05-2003, 02:10 PM   #3
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Default cycling batteries

Guys;

For my electric class racing I am using 2400 NiCd's and they get cycled after every race by discharging on an equalizing tray then stored until the next race. I have found that DEEP discharging ( 1+ days) on a tray causes false peak problems during the next charge cycle, so I have quit this practice.
For my NiMh packs large and small, I store them with whatever remaining charge is left then will cycle once at the next recharge. Whether this is the accepted method of cycling I cannot say, but it has worked very well for me.
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Old 02-05-2003, 02:16 PM   #4
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Thanks for the info. I don't have a charger that cycles but a new racer I have been helping just bought a Duratax Intellipeak that he says has a recycle function. He was asking about it.
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Old 02-05-2003, 02:26 PM   #5
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Just checked on Duratrax's web site. Apparently their chargers offer single and auto repeat cycling. I can't imagine that continuous cycling in a single session is good for a battery.
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Old 02-06-2003, 12:45 AM   #6
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cycling batts depends on the batts. some NiMH need 2 1/2 hours/ 1 day/ 1 week between cycles. 2400s and HVs don't mind multiple charges go in a day. well HVs tend to go for 2 to 2-1/2 hour rest.

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Old 02-06-2003, 08:24 AM   #7
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my personal opinion is that time is not so good a measure for how much cycling a pack can go thru.
better is temperature.
chemically at different temperatures cells behave differently towards introductin of electric charge...
and at higher temperatures the can be irreparable damage to it's chemical composition.
of cos time is a good measure of how much the temperature of a pack has dropped...so it's up to u.
this is more controversial...
i've heard to other way:nicads should only be raced ONCE a day and metals SHOULD be used multiple times(peak voltage on > the 1st cycle)
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