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Old 10-14-2003, 10:45 AM   #1
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Default Battery Discharger Recommendations???

I guess I should first ask if it's ok to use a discharger on NiMH 3300 batteries?

In the old days, ten GE 1157 automobile light bulbs were used.

What is the recommended discharge cutoff for 3300 cells?

What is the recommended discharge rate?

What discharge trays/devices are recommended? I need a discharger to discharg 6 cell side-by-side, and 4 cell side-by-side packs.

Thanks
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Old 10-14-2003, 11:22 AM   #2
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Default

Check out www.smc-racing.com for charging and care instructions.
Discharger wise it depends on if you wanna go Digital or box style.
If runtime is NOT a problem then I tray my GP's.If runtime is an issue then just treat them like Nicads.
Discharge to 5.4 at 20-30 amps for 6 cell
3.6 for 4 cell 20-30 amps.
Digital you can check out the Orion Unit.Most cutoff units cutoff at 5.4. Honestly dont know if they can sense 4 cells and cutoff at 3.6.
What charger are you using?If an older charger you may wanna upgrade and get one with discharger built in.
Hope this helps
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Old 10-14-2003, 12:46 PM   #3
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Default A couple of suggestions:



From the Robitronic site:

Discharge characteristics:
- rapid discharge of the packs cells to an defined discharge level
- automatic cut-off prevents deep discharge
- Equalizing the cells discharge level to each other
- more life-time and higher performance for each cell

Singel Cell Discharger Features:
- Automatic Cut Off for NiMH & NiCd
- 1 Amp Discharge Current
- Indication for each cell
- for packs with and without Battery Connector
- Box is usable for storage and carrying of batteries

www.robitronic.com

Or this one:



From the CS site:

20 Amp pulse discharge
shows average voltage
shows discharging time in seconds
shows capacity in mAh
discharges 5-7 cells
adjustable shutoff voltage
discharge to zero function
optional PC-interface
12V supply voltage
shortcut- & crossconnection protected

CS-Electronic
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Old 10-14-2003, 12:52 PM   #4
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TexRacer: Thanks for the helpful link to SMC. I just got an LRP Pulsar Competition Charger. It discharges at 10amp max, but I haven't tried to use that feature yet.

Cole Trickle: Both dischargers you suggest look interesting (especially the first one). However, I'm not sure that either one is available here in the US. I've never seen products from either of those companies.

I was hoping to find a decent tray.
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Old 10-14-2003, 01:13 PM   #5
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Deacon, you got the opposite problem as me: I know of several US products, which aint represented in DK.

Anyway, I know that CS is imported by Schumacher in the US.

Among equalizers, Integy has a nice one too (one I would like to get myself, but...): SP Saddle Relay Cut-off Discharger 5A

There's also the Octane 2, but personally, I dont like dischargers/equalizers without automatic cut-off.

www.integy.com
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Old 10-14-2003, 01:43 PM   #6
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Yea pulsar while a nice charger 10 amp is almost useless.
You need at least 20.
Goodluck.Integy has nice tray's.
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Old 10-14-2003, 01:51 PM   #7
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Quote:
Originally posted by TexRacer
Yea pulsar while a nice charger 10 amp is almost useless.
You need at least 20.
Goodluck.Integy has nice tray's.
10 amps, useless? I think there's a lot of hype here.

It'll depend on the level you race at, but during practise, many people run the batteries until they dump anyway. This is the ultimate discharge, since it's done in the car.

In races, there's usually aint much left after 5 minutes anyway, so 10 amps discharging do fine for many people.
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Old 10-14-2003, 01:55 PM   #8
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Quote:
Originally posted by Cole Trickle
10 amps, useless? I think there's a lot of hype here.

It'll depend on the level you race at, but during practise, many people run the batteries until they dump anyway. This is the ultimate discharge, since it's done in the car.

In races, there's usually aint much left after 5 minutes anyway, so 10 amps discharging do fine for many people.
Thats what i thought, we race 4 min stock due to having a time limitation on the hall we use, and im running some older packs, trinity 2000's i come off from running, they use about 1400 per race so i just slap em on discharge and marshell, when im back they are done. I dont see why 10A discharge is as bad as everyone makes out.
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Old 10-14-2003, 04:51 PM   #9
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Default GM Racing Commander 2000 Charger/Discharger

Hello everyone,

I know this is off the subject of this thread, but I was wondering if anyone else out there has this charger?

The English instructions that came with this charger leave alot to be desired. Any information in programming this charger would be much appreciated.

Thanks in advance.
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Old 10-15-2003, 05:02 AM   #10
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Default Re: GM Racing Commander 2000 Charger/Discharger

I believe you'll get way better response, if you start a new thread on this subject.
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Old 10-15-2003, 05:56 AM   #11
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Default Deacon,

can your nick-name by any chance have something to do with Deacon Blue? Nice music.....
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Old 10-15-2003, 06:16 AM   #12
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Default

Cole Trickle: Hey, thanks for the continued support.
I'm going to look at getting the Integy discharger, since I used to have an Integy discharger for my NiCd batteries, and it worked well.

Quote:
can your nick-name by any chance have something to do with Deacon Blue? Nice music....
No. It doesn't have anything to do with Deacon Blue. However, Deacon Blue from Steely Dan's Aja album is one of my favorite songs and albums.

I'm actually a Deacon at my church.
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