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.

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.

Integy Octane2 (20 amp individual cell tray discharger)

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

For discharging whole packs, I would use the Integy Indi Reactor 30. For deep discharge and equalizing packs, I use the Rayspeed tray.

i agree with mo, i use the integy 30 amp and the rayspeed dischargers

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.

Thanks everybody for the input.

Hi Mo,

Do you have an english instruction sheet for your RaySpeed Discharger?

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

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. :nod:

Please note that I said those voltage numbers were per cell. :D

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 :sneaky: :ha:

-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!

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

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.