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How to decharge NiCad batteries?


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#1 Dan Salzmann

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Posted 10 July 2007 - 06:43 PM

I've changed NiCad cells in two battery packs and I need to charge them (easy, just use a charger!) and discharge them (to avoid the memory effect and also for them to hold a longer charge after I recharge them) before charging them again.
Question is: Is there a way of decharging them without using them to power an empty camera for example?
Hope all this makes sense.
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#2 David Venhaus

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Posted 11 July 2007 - 12:19 AM

Some charging units have a discharge function built in. On them you simply flip the switch to discharge and turn it on and it dischranges the battery. Those units will usually have a meter so as to know when the discharging is complete.
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#3 Dan Salzmann

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Posted 11 July 2007 - 04:21 AM

Sadly my charger does not have that function. Any other way to do this without running the camera?
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#4 timHealy

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Posted 11 July 2007 - 06:38 PM

Able Cine Tech use to sell something called a DX2 discharger just for this purpose.

Best

Tim
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#5 Tony Brown

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Posted 14 July 2007 - 07:30 AM

Any RC shop will help you
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#6 Andrew Rawson

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Posted 14 July 2007 - 11:37 AM

Tony is right. I fly RC helicopters as a hobby and battery management is a very important part of it. I've included a link below that has several chargers. The standard in the RC world is the Triton but I personally own the Hobbico and prefer it. The Hobbico allows you to charge 2 batts at the same time. It will discharge and it handles all battery types as well; Li-Ion, Li-Po, NiCd and NiMH.

http://www2.towerhob...wti0093p?&C=PKL
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#7 Dan Salzmann

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Posted 16 July 2007 - 09:46 AM

Thanks guys!
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#8 David Auner aac

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Posted 24 July 2007 - 12:34 PM

Hi Dan,

I have a pretty cheap multi-charger (by Conrad Electronics, check out this link).

This unit will charge and discharge NiCad und NimH batteries and packs, anything between 1-20 cells. You can use banana plugs to make any adapter cable you might need. It also features a number of nice refreshing and cycling programs.

If you don't have a discharger available, just use a number of 12V bulbs! ;)

Cheers, Dave

Edited by David Auner, 24 July 2007 - 12:36 PM.

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