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How much reverse current can NiMH tolerate?

How much reverse current can NiMH tolerate?

Old 04-07-2005, 07:36 PM
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Default How much reverse current can NiMH tolerate?

or How do you care for stick packs?

The packs in question are for TCS so I can't convert them to side by sides.

I remember reading an old Tekin Charger manual. It says to attach a 30 ohm resistor on the Nicad stick pack when storing.

So, if I discharge the pack down to 5 volts and at 5 volts, one cell (let's call it cell#1) is already at 0 volts. Then I attach a 100 ohm resistor across the entire pack and leave it overnight. This would put 50mA reverse charge current through cell#1.

Would this ruin that cell?
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Old 04-07-2005, 10:43 PM
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Unfortunately, stick packs make it hard to equalize or safely discharge the cells to low voltages. If you really feel like it, take apart the stick pack, equalize the cells as a side x side pack, then remake it into a stick pack for the race. But I'm not sure all the trouble would be worth it.
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Old 04-07-2005, 10:48 PM
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thanks for the reply...

I don't think the pack would still be TCS legal even if it's rebuilt back into a stick pack. If it would still be tcs legal, I would install small wires between each cell and equalize the pack using those wires. . but it's NOT legal.

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Old 04-08-2005, 12:35 AM
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That dont leave many choises....

I would simply get a discharger with auto cut off. Like the Integy Reactors. Reasonably priced, and if you open it, you can adjust the cut off, if needed (can void warranty, though). Avaible in 20 and 30 amps versions, maybe also 10 or 15, cant remember...
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