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Old 01-22-2008, 11:20 AM   #16
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I be po' right now. I am in the process of switching to BL, just bought a sidewinder and a trinity DUO stock motor. Can't wait for the KO Propo BL speedo comes out. But it will be about another month before I can get together enough cash for 4-5 Li-Po Packs. Thinking either Trinity Li-Pro, or the Orion 4800's.... Decisions decisions,
Damn IB cells. Let's all go back to GP cells. They were much more relaible and they do make a 4600. Maxamps also makes a 4700 cell. Haven't tried them yet but they seem to be a big promise.
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Old 01-22-2008, 11:24 AM   #17
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I be po' right now. I am in the process of switching to BL, just bought a sidewinder and a trinity DUO stock motor. Can't wait for the KO Propo BL speedo comes out. But it will be about another month before I can get together enough cash for 4-5 Li-Po Packs. Thinking either Trinity Li-Pro, or the Orion 4800's.... Decisions decisions,
Damn IB cells. Let's all go back to GP cells. They were much more relaible and they do make a 4600. Maxamps also makes a 4700 cell. Haven't tried them yet but they seem to be a big promise.
4 or 5 packs?!?!?! Whoa. You probably only need 2 maybe 3. Some people run with just a single pack. With lipo you can run the many times in a day, no need to discharge, etc.
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Old 01-22-2008, 11:30 AM   #18
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It's funny, I hear all these stories of exploding IB4200's and I haven't had a problem with mine at all. I only have one pack of IB42's but it takles a charge between 4400-4500 everytime. It's a year old so I'm surpirsed it's doing so well. I'm keeping my eye on it though (from a safe distance)
same thing here just if you discharge and charge correctly every time and keep them at the same amps you shouldnt have a problem. these wcs are a little bit more volitale than the last generations but ive been closer to exploding a 3800 than any 4200. it just sounds like you cant top them off.
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Old 01-22-2008, 11:30 AM   #19
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and how many cycles are Ni-Mh good for? say i take the car off the track, should i discharge it to the 1.2v, and then charge it, or can i peak it, for the next heat?
Not sure what the life cycle of IB4600s is, yet to be seen, but it looks as if it might be pretty darn good for Ni-MH cells.

I would discharge the pack after coming of the track to either .90 or 1v per cell, then let the pack cool for a couple hours and recharge it.
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Old 01-22-2008, 11:39 AM   #20
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couple of hours?! what if you have a qualifying heat in like 15-20 minutes?
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Old 01-22-2008, 12:23 PM   #21
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couple of hours?! what if you have a qualifying heat in like 15-20 minutes?
Not sure what to say in this case... You can recharge the pack, but it might hurt the cells. Also, your packs performance may not be as good.
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Old 01-22-2008, 01:03 PM   #22
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A couple of things:
1) at this point, the most prudent, consistent, and cheapest thing to do is to run lipo in everything but 1/12th scale (yet.)

2) you only need 1 lipo per class that you will run (except 1/12 scale)

3) I have 2- 3200 orion lipo packs and that's it. 1 for sedan, 1 for mini. Don't need anything else.

3) I simply throw the battery on the charger after I run it, that's it. Even after running 13.5 4wd sedan, it takes 30 minutes at most to recharge the pack.

4) In my opinion, the 3200 lipo is not only cheaper than the 4800 (by about $40), it is also better because:
a) it's lighter
b) it's 20c vs 15c for the 4800 (I know c rating isn't that important when comparing different capacity batteries, but I would rather have less cells and higher c rating)
c) the balancing jacks are all on the same side
d) it is more flexible because it will fit into a mini, f103, etc

Instead of the 4800, the 3600 is probably the better buy if you want more capacity than the 3200.

Last edited by billjacobs; 01-22-2008 at 01:21 PM.
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Old 01-22-2008, 01:16 PM   #23
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This thread has really opened my eyes to lipo. 1 pack for each class Can I use lipo with my brushed motors? or would I be best to go BL?
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Old 01-22-2008, 01:19 PM   #24
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Default lipo

The only difference between brushed and brushless is that brushless will use less capacity for each race and therefore it will take less time to recharge the lipo battery. In the long run, brushless will also save you money, and will require less maintenance.
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Old 01-22-2008, 01:23 PM   #25
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couple of hours?! what if you have a qualifying heat in like 15-20 minutes?
It is unfortunate that some people have bad luck with IB's. In your case Having 1 or 2 packs for race day is not going to cut it. If what's holding you is price, send me a pm. If what's holding you is other products on the market? then choose. but you can possibly want to race 2 or 3 qualifiers and a Main with 2 or 3 packs. you should have a minimum of 4 racepacks and 2 practice pack. I didn't say break the bank.

Running 2 pack for example disregarding the battery life and paying more attention on your surounding. Some 4 year old could be on the path of that exploting cell.

I write this post because we all blame our product and never take responsability for what we do. For Ex. this post started with someone blowing up a 6 cell pack. well lets take a step back. If the pack did not charge all the way why charge it again. the explosion came after the re-peak or topoff charge.

For your information the once the pack does not charge let it cool down and discharge it with novak smart tray, trinity DND of Much More CTX these dischargers are sent with low amp discharge or 30 amp pulse and they won't increase the heat causing an explosion. Then if there is something wrong with the cells you will find out before someone gets hurt.

If you are not sure, ask. we are here to help. Remember safety first!
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Old 01-22-2008, 01:32 PM   #26
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Haha, nice signature...I had to do it...
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Old 01-22-2008, 04:23 PM   #27
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Any chance the METAL pot you threw over the pack shorted them out?
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Old 01-22-2008, 04:37 PM   #28
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Any chance the METAL pot you threw over the pack shorted them out?
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Old 01-22-2008, 05:51 PM   #29
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Default ib cells

The truth is finally revealed, all of the IB cells that blew up were due 100% to user error. That includes all of the cells that blew up while charging, an hour after charging, etc. And, in addition, after the cells started to hiss, all of the users shorted them out trying to get away.

If this is all true, where are the tales of the gp3300 blowing up? Or how about the IB3800?
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Old 01-22-2008, 06:27 PM   #30
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watch Oscar Jansens comments on exploding cells and how to prevent it
http://www.rctv.dk/OscarJansen_DHI_Cup_2008.wmv
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