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HomeScaleAircraftScale HeliScale Helicopter Main Discussion › Nicad - Dishcharge Question
07-20-2018 08:04 PM  4 months agoPost 1
MattJen

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UK

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Hi all,
Hope everyone is well, I have been preparing to fly my zealous with Wren, For those who remember the zelous the uses a separate oil sump system that recirculates the oil using a pump power by a 1 Cell NiCad at 1.2V, this makes the pump turn nice and slowly to give lube.

I unfortunately forgot I had left the pump running and have discharged the NiCad too low, I managed to charge it in stages back up to 5000, but it seems to be suffering with he old memory effect, my charger wont discharge it for more than a minute, so I am wondering how you guys used to discharge a NiCad, I did think of connecting an old light low voltage bulb direct to batter to drain it. But was wondering if anyone else has a good tip..
Many thanks

Matt

All The Best

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07-20-2018 08:13 PM  4 months agoPost 2
JuanRodriguez

rrProfessor

The Villages, Florida

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MattJen
I did think of connecting an old light low voltage bulb direct to batter to drain it.
That's one way.... but frankly, why bother ?? For the cost of one new cell I personally would not bother trying to revive that cell that most likely sustained damage from draining it to zero....

Been there, done that and old enough to know better.....

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07-20-2018 09:17 PM  4 months agoPost 3
ICUR1-2

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Ottawa, Ontario

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I use an old drill motor to discharge...
For the cost of a cell I would buy a rechargeable lithium. ..a123 type.

spending time, paying attention

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07-20-2018 09:19 PM  4 months agoPost 4
modtron

rrKey Veteran

Oxford. UK

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Why bother Matt.
Totally agree, just get a new NiMh cell - not even worth taking a chance.
Costs bugger all as well !!!

modtron
Oxford UK

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07-21-2018 12:02 AM  4 months agoPost 5
Ace Dude

rrProfessor

USA

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For low current applications Eneloops work very well.

  

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07-21-2018 04:57 AM  4 months agoPost 6
MattJen

rrElite Veteran

UK

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Cheers folks will order new one.

All The Best

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