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Old 11-27-2008, 04:38 PM   #1
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Default Scarin me away from electric RC!

So after reading about all these exploding Nimh, and expensive LiPos i think i'm being scared away from electric RC. I have a nitro one right now and was thinking of switching to electric due to simplicity. But then i read about all these dangerous exploding Nimh batteries... so i don't know if i want it anymore. What do you guys think?
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Old 11-27-2008, 04:39 PM   #2
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The only nimh that explode are IB cells. I have sene them explode before.
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Old 11-27-2008, 04:39 PM   #3
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I think you have nothing to worry about.
most of it is people over reacting.
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Old 11-27-2008, 04:44 PM   #4
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expensive LiPos
I admit I dont run nitro, but I heard it's $40 something a gallon vs $60-$80 for a decent lipo that may last years.
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Old 11-27-2008, 04:49 PM   #5
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Most of the exploding NiMh batteries were the Intellect brand cells. They were known for producing great power at the time, but had real issues with durability. I've seen the damage the Intellect batteries could do, and many racers complained about the cells simply not lasting through a season without a severe drop in performance.

I've been using the Ener G 4600 cells from Pro Match, and they are great. I first saw them last year at my local track, the guy using them was fast and he told me personally he was very glad he bought them. I decided to give them a try this year. I too am very pleased with them.

Check this out.

http://www.promatchracing.com/index.php

His prices are good and he's very helpful in answering any questions.

Another brand of cells is the EP 4600. Another great cell with power and durability. Check this out.

http://www.teampowerpush.com/

This company has been around for the better part of 20 yrs as far as I know. Hope this helps.
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Old 11-27-2008, 04:52 PM   #6
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As long as you pay attention to what you are doing you won't have any problems. Realistically there are very few battery "explosions" throughout electric racing. The few that do occur are few and far between, not to mention when you dig down deep into the situation most of the time it is the result of a user error and not a battery or charger malfunction.
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Old 11-27-2008, 04:54 PM   #7
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Quote:
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The only nimh that explode are IB cells. I have sene them explode before.
electric rc is safe but can be unsafe if you neglect things. but chris rc is right all the brands of cells ive used only the ibs hav popped. i really didnt like the ib batts they run hotter than the other batts. i currently run a ep4600 pack and i love it
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Old 11-27-2008, 05:08 PM   #8
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The only times I've heard of issues with either NiMH and Lipo are with overcharging and too-fast charging. Like a 2/3 18th scale battery charged at 4A or over-charging Lipo due to neglect. In my first year of racing, no complaints from me and my son and I raced in both on-road and off road and we crash more than more experienced racers. No problems with the cells I have other than one or two NiMH cells going flat (bad) that need to be pulled out of a pack.
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Old 11-27-2008, 05:21 PM   #9
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The only times I've heard of issues with either NiMH and Lipo are with overcharging and too-fast charging. Like a 2/3 18th scale battery charged at 4A or over-charging Lipo due to neglect. In my first year of racing, no complaints from me and my son and I raced in both on-road and off road and we crash more than more experienced racers. No problems with the cells I have other than one or two NiMH cells going flat (bad) that need to be pulled out of a pack.
i used to charger my 18th scale packs at 4 amps they would be done and you could hardly hold them. im happy they never blew i now charge them at 1-2 amps
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Old 11-27-2008, 05:34 PM   #10
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Like is mentioned by others, the damage is usually through misuse. The best advice I ever got was to balance cells properly every now and then to prevent overcharging.

If you look after the batts and treat them with the smae respect you would nitro fuel, you won't have a problem.
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Old 11-27-2008, 05:46 PM   #11
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Hmm... so what's a good typical charger / equipment i would need to maintain these batteries properly?
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Old 11-27-2008, 05:47 PM   #12
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i used to charger my 18th scale packs at 4 amps they would be done and you could hardly hold them. im happy they never blew i now charge them at 1-2 amps
The one and only time I charged a 1/18 pack at that high amperage, I had to buy a new pack the following week. Was a complete accident too. I forgot to turn down the amperage after charging a 1/12 scale pack.
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Old 11-27-2008, 05:55 PM   #13
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i used to charge my gp 1500 at 4amps all the time. i would allso charge my ib 1100 and ib 1400 at 4 amps. all the batts had more than 25- 30 charges at 4 amps. i am happy none of them blew
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Old 11-27-2008, 06:12 PM   #14
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With regards to the right gear to get, it all depends on your budget and type of batteries you want to run.

Generally, Lipo's are a bit more expensive initially, and so are the chargers, but they have a longer life than Nimh, and you don't have to discharge or balance them, just literally plug and play! You do however need an ESC that has a voltage cut-off.

Nimh are less expensive, but to get the most out of them, you need a ballancer or battery conditioner. There are so many out there it's not funny, so it's hard to decide.

Maybe if you suggest the budget for batteries and associated gear, a few of the others on here can suggest the best gear to get for them
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Old 11-27-2008, 06:21 PM   #15
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Hmm... so what's a good typical charger / equipment i would need to maintain these batteries properly?
You want a peak charger. It senses when the battery is fully charged then stops. Some brands to look at our Duratrax, Orion, Novak, and there are a couple more.

You will need a high amp discharger (Integy sells some good 20-30 amp ones) and a low amp equalizing tray. (seems as the Novak Smart Tray is the best). I have a Integy Reactor 30 amp discharger to discharge the batteries really quick after a run then when they are discharged put them on my Novak Smart Tray to equalize them and you should equalize them before every charge.
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