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Old 06-09-2005, 09:37 AM   #61
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Quote:
Originally Posted by Barry White
Are these batterys allready legal?
If I am NOT mistaken, they are not ROAR or IFMAR legal yet. They will not be until 2006 becuase of the process the sactioning racing bodies use to make stuff legal.

But some of the biggest and best races of the year are not ROAR or IFMAR sanctioned and allow the use of these cells (Reedy, Cleveland, Snowbirds) My club allows then as well. And if others are running them, you do too in order to be competitive at my track.
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Old 06-09-2005, 11:13 PM   #62
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Koabich ... GP3700, IB3600 & IB3800 cells have all been approved by IFMAR. I have a copy of their letter. Three of the governing blocs (EFRA, FAMAR , SEMCA) have approved the batteries but not ROAR. I don't know whether this is to do with ROAR's approval process or timing but they will be legal for the Off Road Worlds in Italy.

Hope this is more polite.
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Old 06-10-2005, 01:41 AM   #63
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cannon: The new IB 3600 doesn't have anymore capacity than the previouse IB3600 it has the same charecteristecs as the IB3800 with 30 seconds less in capacity.
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Old 06-10-2005, 08:26 AM   #64
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Quote:
Originally Posted by cannon
Koabich ... GP3700, IB3600 & IB3800 cells have all been approved by IFMAR. I have a copy of their letter. Three of the governing blocs (EFRA, FAMAR , SEMCA) have approved the batteries but not ROAR. I don't know whether this is to do with ROAR's approval process or timing but they will be legal for the Off Road Worlds in Italy.

Hope this is more polite.
Hi Koabich,

Could you post the letters here.I would like a copy to help quell the little dispute that i have back in my country.

Thanks a Lot.
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Old 06-10-2005, 12:10 PM   #65
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Quote:
Originally Posted by viper1
Hi Koabich,

Could you post the letters here.I would like a copy to help quell the little dispute that i have back in my country.

Thanks a Lot.
Sorry Viper1 I do not have the letter. Cannon says he has it though. He was responding to my post.
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Old 06-13-2005, 11:03 AM   #66
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Default deadshorting

I am now reading that guys are deadhorting the IB3800 with good results.

Since the improved IB3600 has the exact same performance as the IB3800-with 30 sec less capacity-does this mean 3600's can now be deadshorted too? Or is it still Not recommedned to DS the 3600?


Thanks everyone,
Ray
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Old 06-13-2005, 11:07 AM   #67
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I would think they would react the same but not 100% sure. As soon as we have some packs ready we will try it.
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Old 06-13-2005, 11:30 AM   #68
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Thanks Danny. I am thinking mostly about my 12th scale thats very close to being on weight with no ballast in it. When i run stock-I'd like to run a lighter battery-like the 3600 instead of the 3800. Though I really dont know if I could feel the difference. But in 12th-you maximize, scrutinize everything you can.
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Old 06-13-2005, 11:48 AM   #69
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Ray I'm thinking along the same lines as you...

Only other thing I was thinking about is that at some larger tracks I'm a lot closer to dumping than other tracks...

The 3800's would help to keep the car from falling off at the end.
Most of the time I'm underweight in the car to start with so at least it would be usable weight. the weight difference should be right around 16 grams or about a half ounce of weight... I wouldn't think you would notice it anyways but if you are underweight then it wouldn't at all.. .just a trade off in where the weight was...

Michael
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Old 06-13-2005, 12:48 PM   #70
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Quote:
Originally Posted by rayhuang
Thanks Danny. I am thinking mostly about my 12th scale thats very close to being on weight with no ballast in it.
Is that with a receiver pack? We are running basically the same car and I have 0.5 oz on my car. If adding 3800's gets me up to minimum weight that would be great!
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Old 06-13-2005, 12:51 PM   #71
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Quote:
Originally Posted by brianrice
Is that with a receiver pack? We are running basically the same car and I have 0.5 oz on my car. If adding 3800's gets me up to minimum weight that would be great!
With the receiver pack I was way over. Without I am within a 1/4oz depending on what size tires I run.

Yeah RIce-just think-a Dead shorted IB 3800 in stock 12th-like 430 sec and 1.195+ voltage.
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Old 06-14-2005, 06:00 AM   #72
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Quote:
Originally Posted by rayhuang
Yeah RIce-just think-a Dead shorted IB 3800 in stock 12th-like 430 sec and 1.195+ voltage.
Well, I will have some 3800's to try for next Tuesday! We'll see how they perform.
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Old 06-14-2005, 09:24 PM   #73
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Here are the reccomendations on how to treat the IB3800.


Charging: Use a high quality peak detection charger. Use a 6 amp linear charge with the peak detect(voltage threshold) set at .005(5mv) per cell. A 4 cell pack would be set at .02(20mv) and a 6 cell pack at .03(30mv)

After the race: For maximum performance itís important to discharge the pack after a race. Discharge at 30-35 amps down to .90v per cell. 3.60v for a 4 cell pack and 5.40v for a 6 cell.

More than once per day: You can use your pack more than once per day. This will make the runtime drop slightly but in most types of racing the IB3800 has runtime to spare. Make sure to let the pack cool down for a period of 2 hours in between charges. Before you charge it place it on a discharge tray for 2-5 minutes.

Storage: If you race your pack on a weekly level you can leave it discharged at .90v per cell. If you will not run it for a period of 2 weeks or more and you want to keep the maximum capacity in the pack you should put 500 seconds of charge back in the pack before storing it. The next time you use it put it on the tray before charging.
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Old 06-16-2005, 09:03 PM   #74
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Danny-I ran my three pack the other night. I charged at 6 and peak detect at 0.03. seems perfect to me too. Cells warmed up slowly-then just as they started to reach 130+they peaked. Each pack took over 2400 seconds to charge so I am gonna have to remember that on race day

I cannot say much as I ran them in mod and I rarely ever run mod. Except to say-car was fast as heck-and stayed fast, but what do you expect with a DC 7-turn and brand new 3800's

Ray
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Old 06-16-2005, 09:16 PM   #75
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Ray you can expect the pack to take 2700-2950 seconds to charge on the next charges. Our newest batches of IB3800 have 500 seconds of charge put back into the cells. This will help maintain thecells high capacity.
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