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Old 09-29-2005, 05:31 PM   #421
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Well, you can't really compare the two, because unmatched is still (in my opinion) not as good as a matched pack. With the batteries all reaching their peak charge and dumping at the same time, you just can't beat that convenience. Even without a discharge/EQ tray, you don't need to worry about overcharging anything, because the batteries will still be within a very reasonable tolerance. Most definately go with the matched packs!
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Old 09-29-2005, 08:32 PM   #422
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Go with IB3800. Great cells. The motors do drop off at 2 min in if you do not have a gear ratio/brush/spring combo correct.

I have 2 SMC IB3800 packs that are 419 sec 1.185 volt at 35 amps. On a Dyna pulse discharge from full charge it says the packs have 4000 mAH.

These are great cells. The price was even better.
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Old 09-29-2005, 08:49 PM   #423
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We are making packs out of the cells SMC just shipped to us....these things are nuts....

How does 420 1.195 at 35 amps sound? Thats a 480+ 1.210 cell at 30 amps folks.....insane....

Later EddieO
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Old 09-29-2005, 08:54 PM   #424
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What is the highest voltage seen? What does a pack cost in the 1.9v range? These cells specifications are 4-5 grams per cell higher than the GP3300's..... is it worth the difference in weight?
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Old 09-29-2005, 09:05 PM   #425
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I have put a lot of time on these IB3600 and 3800's. One thing i have noticed along with finding the right brush cut (I personally think you roll them out the same) is that having too high of amp draw on the motor is only part of the equation, having a car that pushes too adds bigtime to the overheating of the motor. Combine amp draws over 10 amps at 2v with a pushing car and you end up with a 200 deg motor and no rip at end of run. But if you discharge-you'll find plenty of runtime in your pack. I have found as I make my car better and better with more steering-my motor temps at end of run have been coming down.

Soinds like childs play-but thats my take. I dont think gearing down is a solution. If your motor likes a 1.00 rollout, but finishes flat-look at your handling and amp draw-but dont gear down-yet.
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Old 09-29-2005, 09:16 PM   #426
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EddieO-

What is the cost of those cells? Can you notice the added weight in the car? That is 5 grams per cell, and a bunch of weight.
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Old 09-29-2005, 09:55 PM   #427
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I am looking at buying a new charger and want to make sure I get it right. IB 3800s .03mVolt cut off for 6 cells...Popular chargers in my price range are:

Pitbull .012-.192
LRPComp2 .05-.95
ICE 0-.25
Advantage ?-?

Can the LRP numbers be right/ I got them from their website? Any suggestions?
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Old 09-29-2005, 09:59 PM   #428
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Quote:
Originally Posted by beerbarron
I am looking at buying a new charger and want to make sure I get it right. IB 3800s .03mVolt cut off for 6 cells...Popular chargers in my price range are:

Pitbull .012-.192
LRPComp2 .05-.95
ICE 0-.25
Advantage ?-?

Can the LRP numbers be right/ I got them from their website? Any suggestions?
The LRP does get IB;s hot. my buddy charges with it and he watches final temp with a temp gun and if they get hotter than 140 he stops the charge and runs the pack.

Ive tried a lot of chargers the last year and I got to say for ease of use and a good charge-go with the pitbull X3.

Ray
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Old 09-29-2005, 10:10 PM   #429
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I did not think I wanted a Pitbull, since I like the do it all features of the others, but it seems like a great charger.
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Old 09-29-2005, 10:12 PM   #430
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Get the Ice. It is the best bang for the buck. I have the temp sensor also. I set my IB3800 to 3mv and 116 degrees and it charges them perfect! Also has a motor run feature. Step charging. And can do Lipo and Li ion. I am very pleased with it.
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Old 09-29-2005, 10:17 PM   #431
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Quote:
Originally Posted by beerbarron
I did not think I wanted a Pitbull, since I like the do it all features of the others, but it seems like a great charger.
I hate to say it but features are not what makes a charger a good charger! How the chager charges the battery determins if the charger is a good charger. I would strongly recommend the Pit Bull. It's like having a mini GFX without some of the fancy features...the nice thing about the Pit Bull...it will charge the batteries identically to the way a GFX charges the batteries. You cannot get any better than that.
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Old 09-29-2005, 10:20 PM   #432
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If the ICE charged as well as anything, then it wins XE vs ICE(more features). If you are correct that it charges 'better' then you gotta with performance. I can always charge an old pack to run my lathe or run in a motor. Wish I could swing a $400 charger right now.
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Old 09-29-2005, 10:28 PM   #433
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OK we all are using Linear chargers. The only thing we worry about is the peak detection. That is what makes a good charger. The extra features make it a better value. I think alot of people now a days over look the value idea.

With my experiance with the Ice. It is a great charger. Great value/performance.
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Old 09-30-2005, 09:17 PM   #434
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I just got 4 packs of IB3800's


If you guys are having problems with hot motors...Go to Ebay and search "cool can fans"

Made for all sorts of cars with CF mounts and some cars can have DUAL fans...I prefer one on my Xray but 1 fan is better than no fan.



As far as using the packs go, I have yet to. I have a Much-More PowerMaster and a CE Pitbull X3 and I am going to try out some of the settings I have seen in this thread and hopefully find one that I like most.

Is Linear Charge the way to go? Or Step Charge? Brother says to go with step charge. But hes my brother, how am I supposed to trust him!
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Old 09-30-2005, 10:32 PM   #435
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Quote:
I just got 4 packs of IB3800's
I like step charging, test it with your pack & compare the result. I am using ICE charger w/my packs.
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