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Can I patch the outer wrap of a lipo with electrical tape?

Can I patch the outer wrap of a lipo with electrical tape?

Old 03-15-2011, 08:35 AM
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Default Can I patch the outer wrap of a lipo with electrical tape?

My lipo fell out of my truck and got dragged around a bit. Can I wrap some e-tape around the end of it, or will that keep the heat in too much?
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Old 03-15-2011, 08:40 AM
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Originally Posted by BiikeMike View Post
My lipo fell out of my truck and got dragged around a bit. Can I wrap some e-tape around the end of it, or will that keep the heat in too much?
was there damage to the silver packet around any of the cells? did you see sparks? if you are sure there is no damage to the cells, then it should be ok. or you can send it back to the manufacturer and have them reshrink it and give it a good bill of health just for safetys sake.
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Old 03-15-2011, 09:31 AM
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No damage to the silver packet, it's just dented up a bit. No sparks.
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Old 03-15-2011, 09:47 AM
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few more questions, (i dont want to say keep it and have it blow on you)

how long ago did this happen? have any of the cells puffed at all? have you recharged it since the accident?

if its been a while, the pack shouldnt puff, and if you have already charged it and didnt run into any problems you should be in the clear. if you havent charged it since, charge it in the garage on a bag of sand in case something goes wrong. also balance the pack with every charge and keep an eye on the individual cell voltages, if one goes out of balance there may have been some damage done.
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Old 03-15-2011, 10:25 AM
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It's been charged since, and I always balance. Just checked the cells and they are at 4.17, 4.18, 4.17.

I just want to wrap the end in tape, one of my friends said that would keep in too much heat.

Here is a picture: http://gallery.me.com/mikehamberger#100016
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Old 03-15-2011, 10:31 AM
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thats fine...

you can warp the entire pack in elc tap if you want...
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Old 03-15-2011, 10:49 AM
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Originally Posted by whitrzac View Post
thats fine...

you can warp the entire pack in elc tap if you want...
yeah, youre all set. i just wanted to make sure the cells werent compromised.

happy running!
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Old 03-15-2011, 09:48 PM
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Originally Posted by BiikeMike View Post
It's been charged since, and I always balance. Just checked the cells and they are at 4.17, 4.18, 4.17.

I just want to wrap the end in tape, one of my friends said that would keep in too much heat.Here is a picture: http://gallery.me.com/mikehamberger#100016
That's just bad info, lipos shouldn't get warm, there shouldn't be any heat to keep in.
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Old 03-16-2011, 05:41 AM
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Originally Posted by racer1812 View Post
That's just bad info, lipos shouldn't get warm, there shouldn't be any heat to keep in.
when you run your lipos, they are never warmer than ambient temperature??
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Old 03-16-2011, 08:01 AM
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Originally Posted by racer1812 View Post
That's just bad info, lipos shouldn't get warm, there shouldn't be any heat to keep in.
judging by your location, you've never ran an E 1/8 buggy/truggy. When a car draws 150amps(peak) batts, no matter which ones you have, get warm...
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Old 03-16-2011, 08:23 AM
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I race mostly 1/10 electric on 2S. Mostly 13.5/17.5 motors to stay at track specs. I havent had any of my packs get warm at all.

Now for $#^%s and giggles i ran a 2S pack i had from a mini in my B4 buggy to watch it wheelie stupidly around the track. That pack did get on the warm side.

The main difference being 1800mah @ 25 = 45 amp rated pack VS. 5000mah @ 30C = 150 amp rated pack.

Was the first and last time I did that lol.
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Old 03-16-2011, 08:53 AM
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according to the maxamps web site a battery temp between ambient and 115-120 F is within normal limits. above that, something needs to be changed, but my batteries have always gotten warm.
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Old 03-16-2011, 09:16 AM
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ok I'll give you guys that, I guees my point was more on that e-tape isn't going to hold in any heat. No more than the original shrink wrap or a hard case lipo would. The whole tape holding in heat part just doesn't make much sence. Yes my lipos get "warm" but at 90-100deg there's no need to worry about holding in the heat..IMO


only my B44 pack gets that warm after a long practice run.
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Old 03-16-2011, 09:23 AM
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Yeah electrical tape is kinda funny that it actually transfers heat pretty well considering it is an insulator...

If anyone remembers the old xbox 360 "Red ring o'death", there was a way to fix it using electrical tape wrapped around a penny to use as a heatsink for the onboard RAM.
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Old 03-16-2011, 10:00 AM
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Originally Posted by BiikeMike View Post
My lipo fell out of my truck and got dragged around a bit. Can I wrap some e-tape around the end of it, or will that keep the heat in too much?
I'd put another layer of heat shrink on it. There are several guys in my area that always add an extra layer of shrink to their packs "for protection". I don't think it really makes a difference but in your case it could be just what you need. Try Fry's or order online.
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