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Old 10-17-2003, 02:04 AM   #1
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Default Dischargers ?

Hey guys. Im currently looking for a discharger for my batteries ( 3000 and 3300 ). Which discharger ( intergy, reyspeed, etc... ) would you guys recommend for my batteries. Thx everyone for checking.
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Old 10-17-2003, 12:59 PM   #2
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C'mon, I know somebody is using discharging units. I did a search for dischargers on this website, and found one thread. It wasn't very informative.
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Old 10-17-2003, 01:09 PM   #3
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Integy Octane2 (20 amp individual cell tray discharger)
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Old 10-17-2003, 01:33 PM   #4
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Indi Reactor 30amp discharger. I don't have one, but I'm sure it would suit your needs just fine. You can get them at - www.integy.com

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Old 10-17-2003, 01:37 PM   #5
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For discharging whole packs, I would use the Integy Indi Reactor 30. For deep discharge and equalizing packs, I use the Rayspeed tray.
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Old 10-17-2003, 04:38 PM   #6
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i agree with mo, i use the integy 30 amp and the rayspeed dischargers
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Old 10-17-2003, 08:04 PM   #7
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I use the Reactor 30 it works great! discharges a full 3300 pack in about 5 mins. It gets VERY hot, thank god for the fan. and as soon as all the lights go out disconnect the batt or you will over dishcarge the battery because the fan just keeps running.
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Old 10-17-2003, 09:19 PM   #8
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Thanks everybody for the input.
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Old 10-17-2003, 11:16 PM   #9
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Quote:
Originally posted by mo
For discharging whole packs, I would use the Integy Indi Reactor 30. For deep discharge and equalizing packs, I use the Rayspeed tray.
Hi Mo,

Do you have an english instruction sheet for your RaySpeed Discharger?
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Old 10-18-2003, 09:00 AM   #10
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I didn't like any of them very much, so I built my own.

Computer controlled, per cell discharge at 20A to about 1V, then ramps down to 1A at 0.9V. Auto cutoff and bounce management.

Unfortunately, it's a bit unwieldy to take to the track right now (big load bank, computer, ratsnest of prototyped parts...), but I'm working on that...

-dave

Last edited by dpaton; 10-18-2003 at 09:24 AM.
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Old 10-18-2003, 09:09 AM   #11
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It needs to be 30 Amps, 20 is a bit low. Your cut off if you using a NiMH 6 cell pack should be 5.4V.
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Old 10-18-2003, 09:24 AM   #12
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Please note that I said those voltage numbers were per cell.

As for the 20A rate, I run mainly stock, to 20A is pretty close to what my packs see on the track (22A +/- usually). I've also been doing some work to instrument my car for things like realtime current draw, and I'm working on some accelerometers to look for things like drift vs slip vs sliding. Not legal for racing, but great to help me tune my technique in practice. There's an amazing amount of science in charging/discharging packs if you want to minimize wear and tear without compromising performance.

I'm what happens when electrical engineers get back into RC

-dave
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Old 10-18-2003, 12:34 PM   #13
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Quote:
Originally posted by dpaton
I'm what happens when electrical engineers get back into RC

-dave
hahaha...then you seem to be the right person to ask about discharging then..hehe...
hey, take a picture of your discharger! my roomate was thinking of building one!
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Old 10-18-2003, 03:09 PM   #14
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Quote:
Originally posted by disaster999
hey, take a picture of your discharger! my roomate was thinking of building one!
I will, if I can find my digital camera. I know it's around here somewhere...

Probably in the same place I put my racing talent.

-dave
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Old 10-19-2003, 02:45 AM   #15
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I'm gutted that my 5+ year old Orion Digital discharger packed up on me yesterday. I'd recommend these unit's without reservation.
20, 25 and 30 amp discharge rates with a mah reading afterwards.

Might even buy another to replace it now.
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