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charging nickle metal hydride batteries

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charging nickle metal hydride batteries

Old 01-07-2006, 02:56 PM
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mitoor/c
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Default charging nickle metal hydride batteries

I just bought 2 new 2700 mah nimh batteries and would like to know if i can fast charge them on my sirius charger? Or do i need to charge them on my alpha 4. slow! Thanks

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Old 01-07-2006, 03:48 PM
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bhanley
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Default RE: charging nickle metal hydride batteries

They need a formation charge first. Sirius makes a formation charger but any charger that you can get an extended time charge out of will work.

Charge at C/10 for 14 to 16 hours. This is 270ma in your case. Close is good enough in this so anything from 250 to 300 ma is OK.
Old 01-08-2006, 09:38 AM
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Rodney
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Default RE: charging nickle metal hydride batteries

As bhanley says, do the formation charge. It will sometimes take two or three of these formation charges before you battery reaches full potential. Discharge at .25C to 0.9 to 1 volt/cell between formation charges.
Old 01-08-2006, 10:54 AM
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mitoor/c
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Default RE: charging nickle metal hydride batteries

Thanks, i will use my alpha 4 first before fast charging.

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