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Old 09-18-2005, 07:21 PM   #376
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APS Dyno Charge users- I found a 30 mv cutoff to work well with the Intellect cells. Peaked around 125-128 depending on each cell and its variance. This is at a 6 amp charge rate.
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Old 09-18-2005, 07:25 PM   #377
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Hey Ray, any of you guys using the Pitbull to stepcharge the 3800s? R.W.
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Old 09-19-2005, 08:16 AM   #378
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Quote:
Originally Posted by Rick Worth
Hey Ray, any of you guys using the Pitbull to stepcharge the 3800s? R.W.

Rick,

I did it on my Orion Advantage and I think it works well to get a full charge in the battery with good punch, but a cooler final temperature. Packs often peaked in the low 120 range instead of the higher 140 range. But instead of a triple rate charge-I have been charging with the lower peak detect instead.

I dont know if tis the way to go in stock. but I think it might have a greater impact in 19t and modified. A little more punch than chargin at 5 amps, but the longer runtime.

Ray
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Old 09-22-2005, 07:08 PM   #379
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I just got a new pack of ib 3800s and threw them on my matcher to check them out.

I heard one of the cells vent and immediately checked the temperatures. The were about 145 F. The cells got up to 180 F during discharge.

Is this excessively hot!?!?!

I charged at 5 with a .02 cut-off and the vent occurred on the charge, not a re-peak. Ambient temp is about 78 F. Discharge was at 30. All on a new TM 4/35.

Any help/recommendations? Thanks!

James
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Old 09-22-2005, 07:26 PM   #380
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James,

I match IB3800's and only use a 0.01 peak. The 0.02 is too high. It will get the cells very hot. If you must use the 0.02 cutoff, then only use the Repeak/Discharge function.
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Old 09-22-2005, 07:42 PM   #381
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Thanks for the reply. Do you re-peak when you use the .01 cutoff? Thanks!

James
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Old 09-22-2005, 08:52 PM   #382
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Yes I use the cycle function which repeaks the cell.
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Old 09-22-2005, 08:59 PM   #383
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Quote:
Originally Posted by cannon
Yes I use the cycle function which repeaks the cell.
Huh? Cycling and repeaking are two completely different modes.
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Old 09-22-2005, 09:04 PM   #384
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Bill - read all the above posts carefully. We are talking about using a Turbomatcher and whether you simply use the Repeak/Discharge for a single peak or you use the cycle function which peaks, repeaks and discharges.

Please engage brain before typing
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Old 09-23-2005, 01:34 AM   #385
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Quote:
Originally Posted by Yankey
I just got a new pack of ib 3800s and threw them on my matcher to check them out.

I heard one of the cells vent and immediately checked the temperatures. The were about 145 F. The cells got up to 180 F during discharge.

Is this excessively hot!?!?!

I charged at 5 with a .02 cut-off and the vent occurred on the charge, not a re-peak. Ambient temp is about 78 F. Discharge was at 30. All on a new TM 4/35.

Any help/recommendations? Thanks!

James

I'm not really sure why you would want to cycle cells that were matched on a TM4. I know that we use 35 brand new TM4/35 to do all our matching and we make sure the abient temperature is controlled and the TM4s are warm before we do any final cycling. Any changes in air temp or machine temp will result in different numbers. The best setup for IB is .01 using the repeak function. The IB cells take longer to drop back in voltage than other cells so this will create extra heat if a lower peak detect isn't used.

Hope this helps.
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Old 09-23-2005, 07:33 AM   #386
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Quote:
Originally Posted by Yankey
I just got a new pack of ib 3800s and threw them on my matcher to check them out.

I heard one of the cells vent and immediately checked the temperatures. The were about 145 F. The cells got up to 180 F during discharge.

Is this excessively hot!?!?!

I charged at 5 with a .02 cut-off and the vent occurred on the charge, not a re-peak. Ambient temp is about 78 F. Discharge was at 30. All on a new TM 4/35.

Any help/recommendations? Thanks!

James
I cycle my IB3800's using a step charge of 7A to 3050mA, .5A to 3080mA & 6.0A to 3mV/cell peak on a CDR5000 and then discharge them at 30A. After charge, the temp is around 145F and then it increases to 170-180F at the end of the discharge. However, they have only vented twice. Once when I first put them together and cycled them and once recently when I cycled them after 30 days of storage. They have never vented during frequent use though.

The CDR5000 shows that they haven't lost any runtime or voltage and none of the individual cells performance has changed either.
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Old 09-23-2005, 10:43 AM   #387
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The spintec batman will not make your new packs better. I have found that their conditioning process has helped to keep my newer packs @ their peak longer but they still degrade, it just slows the process.

Mark
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Old 09-23-2005, 08:15 PM   #388
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Looks like the IB3800s are doing real well so far in Vegas with most of the TQ's in the stk/19t classes and in 12th mod.


This is the first major race where these cells are legal.
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Old 09-23-2005, 09:04 PM   #389
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Quote:
Originally Posted by Danny/SMC
Looks like the IB3800s are doing real well so far in Vegas with most of the TQ's in the stk/19t classes and in 12th mod.


This is the first major race where these cells are legal.
YAHOOOO!!!
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Old 09-25-2005, 06:56 AM   #390
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Hi guys! got to run my new IB3800 last night and must say they were awsome,they had good power all the way from start to finish.

Dont know if this will help or not but i charged a pack at 6cell 6amp 30mv cut of and the cells got very warm but nothing serious,so i then tried a pack at 5cell setting 6amp 30mv cut off and they came off a lot cooler and felt to have more power. Maybe worth a try!
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