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Old 01-25-2008, 10:57 AM   #46
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No safety measures still for Nk-Ml /NI-CAD cells even though we already have been warned by many explosions just like this one posted....

What is it going to take, to make the r/c community wake up and realize ?


maybe if...

Someones eyesight is loss and a big law suit ?

Guess so ......
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Old 01-25-2008, 11:03 AM   #47
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Seems like the issues are with the older cells.
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Old 01-25-2008, 11:11 AM   #48
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Right on Barry. As long as you take care of them and do it the right way, you won't have any problems.

Heck I've even run deadshorted IB4200's from April and still haven't had them blow. From what I have seen, as long as the voltage per cell is 1v or lower and all the cells are equal, you will won't have a problem. I have charged old packs from 6-8 amps and still have yet to blow a pack.



Even as lipo gets bigger and is allowed for competition companies will crank as much into them as they can and the racers will try to crank as much out of them as they can. Everyone wants to be faster and will push it to see how fast they can get. If you aren't pushing, you aren't racing.

No matter what cell you have, eventually you will have problems.

If you properly use what you have, the possibility of a problem decreases.
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Old 01-25-2008, 11:58 AM   #49
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I think the title should read more like, " RC racers, an IB cells worst nightmare"

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Old 01-25-2008, 12:23 PM   #50
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haha, yeah that makes more sense, lol. i think Ni-mh are a lot safer than the lipo, did any of you see those youtube videos of the lipo getting punctured? well if you didnt, ill sum it up...



BOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOMMM!!!!!! FIREEE!!!
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Old 01-25-2008, 02:11 PM   #51
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Just wanna say nice work and quick thinking with putting a pot over the cells straight away, probably the best thing you could do.
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Old 01-25-2008, 03:42 PM   #52
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Quote:
Originally Posted by Wild Cherry View Post
No safety measures still for Nk-Ml /NI-CAD cells even though we already have been warned by many explosions just like this one posted....

What is it going to take, to make the r/c community wake up and realize ?


maybe if...

Someones eyesight is loss and a big law suit ?

Guess so ......

I wonder if there will be comments like this when a lipo manufacturer produces a defective battery and a few businesses or people accidentally get burned?
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Old 01-25-2008, 03:47 PM   #53
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I wonder if there will be comments like this when a lipo manufacturer produces a defective battery and a few businesses or people accidentally get burned?
No need wo wonder. Go to the airplane forums to see. Fortunately we havent had the bad luck those guys have had. But again, they were the real early adopters in the hobby world for lipo.
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Old 01-25-2008, 04:20 PM   #54
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yeah, the airplane guys have been using it for a while, but i would hate to see it in a crash, with a piece of the airplane piercing through the pack.
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Old 01-25-2008, 04:40 PM   #55
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Quote:
IB cells are a racers worst nightmare...
Sensationalist threads on RCTECH are MY worst nightmare...
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Old 01-25-2008, 04:42 PM   #56
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Jakespeed....It is not IB's fault at all......Heck back when I started we still used 15min dialup chargers and just felt when the battery was warm...some people used cables straight from the battery on their cars...but the point is they monitored the batteries and took care of them some they did not have problems like these...To this day when I am charging I check my cells every 10-15 mins and I know others that are the same way..I am not trying to harp on anyone...I am trying to say that with alittle caring and not being lazy things like this will not happen...

Bill....You are correct!!!!

Take care,

Barry

I've seen IBs blow charged at 6 amps with temp checks every 5 mins! They don't heat up until they go BOOM...If you think I'm lazy, I think YOUR CRAZY......But thanks for ur opinion, You are Paid well to state IT!!!!


The pack that blew on me was on its second charge and wasn't even fully charged.....


Ban IBs
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Old 01-25-2008, 05:00 PM   #57
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damn, this dudes crazy, its like the worlds out to bite his a$$. You had one problem, and it was probably just a bad batch. thats your opinion, but dont jock on people who had a good experience with these cells, and they are the ones winning championships.
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Old 01-25-2008, 05:24 PM   #58
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Quote:
Originally Posted by Scrubb View Post
I wonder if there will be comments like this when a lipo manufacturer produces a defective battery and a few businesses or people accidentally get burned?



With a Nk Ml pack you get no warning , just a explosion...

Injury , eye damage or worst will happen , just a matter of time before the INSURANCE companys
come on board and decide for us .....


Of course that will occur after someone is hurt & injured....

Maybe someone already has file a claim ?

Won`t be long to wait , unless we start to create safe guards now for "all" battery`s and not just Li-Po....
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Old 01-25-2008, 05:54 PM   #59
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safe guard meaning case? yeah, the cases are really good ideas, but i doubt they will make them for nimh
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Old 01-25-2008, 05:54 PM   #60
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Originally Posted by Ferrarimk13 View Post
yeah, the airplane guys have been using it for a while, but i would hate to see it in a crash, with a piece of the airplane piercing through the pack.
I fly airplanes every once in a while...

I've seen some pretty bad crashes with electrics and lipo's. They've all resulted in puffyness, but never have caught fire. some smoked, but Never ignited. I was pretty impressed with how they Didnt react. apparently the airplane guys arent having ignition issues with crashes. And as for punctures, I saw a pack with a 90 degree bend in it, from hitting a hard edge. the insides were showing, but it only smoked. it didnt ignite.

So as for Lipo's, I feel very safe.
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