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Old 07-12-2005, 07:46 AM   #1
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Default old battery packs, need help

Hi, i have some 3000 packs that have been sitting on the shelf for like 2 years, i'd like to give them a try and am not sure if i have to cycle the packs b4 charging them.
should i cycle them?
if so, is there any setting i should nknow about? ( i have a quazar pro charger)
i haven't touched any of my electric stuff for over 2 years and am very rusty
thanks for any help
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Old 07-12-2005, 11:01 AM   #2
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Charge them at a low rate-3 amps or so,(they will prob false peak several times)let them sit for a day,discharge them at 20 amps or so then tray them all the way down to 0.0(probably overnight),let them sit another day then charge like normal-5 amps,then cycle them again.If they are still good it should bring them back.
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Old 07-12-2005, 11:52 AM   #3
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My opinion . Charge them at low amperage (I'd start at 2 Amp) until slightly warm, but they have to be dishcarged on a tray the first couple of times, the Trinity 2 Amp discharge tray or similar would be fine. Don't discharge them as a pack and don't discharge below 0.5 Volts each cell. Repeat couple of times increasing charge current 1 Amp each time, after 3 cycles or so it should be safe to discharge them as a pack. If they're still ok when you begin, then you should end up with batteries that are fine.
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