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09-07-2010, 02:49 PM
| #1 |
| I wanna be Dave Join Date: Nov 2009 Location: Houston
Posts: 2,004
|  Puffed Lipo?
Last week on a trail run with a scaler I may have puffed a Maxamps 1550mah 3s pack using an XL5. I ran the fully charged pack about 20 minutes on a 35T motor...I figured I could run it about an hour but I did run the truck fully submersed a few times. When back on land I drove it and noticed a lack of power so when I took the body off I felt that the pack had puffed out a little comparing it to another identical pack. When I hooked it to my charger the voltage was at 10.3V so I charged it back up. A few days later the puff on the pack reduced a bit in size. Is this pack still safe to use? Maxamps claims their lipos to be waterproof so I don't think water got into the battery. Last edited by alexchen86; 09-07-2010 at 02:56 PM. |
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09-07-2010, 02:57 PM
| #2 |
| Rock Stacker Join Date: Sep 2010 Location: Netherlands
Posts: 76
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If it is still under warranty, send it back to them. If not, just toss the thing because a new lipo is cheaper than a new house. |
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09-07-2010, 02:59 PM
| #3 |
| Rock Crawler Join Date: May 2009 Location: 354
Posts: 670
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how puff is it? I'd had the same happen to me, I just stop using them and discarted them on my LHS just to be on the safe side. A. I don't want a burnt RC. B. I don't want a burnt house. |
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09-07-2010, 03:09 PM
| #4 |
| Quarry Creeper Join Date: May 2010 Location: ny
Posts: 466
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i had a lipon for almost 7 months it finally puffed a lil bit so i took a hot pin and punctured the plastic and it still holds a charge..word to the wise charge the bugger in a bucket on top of sand
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09-07-2010, 03:21 PM
| #5 |
| Rock Crawler   Join Date: Sep 2006 Location: Lititz
Posts: 787
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Anyone have a pic of a puffed lipo? I think all my lipos are puffed a little. How much is too much? |
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09-07-2010, 03:23 PM
| #6 |
| Rock Crawler Join Date: Dec 2008 Location: Marengo, Ohio
Posts: 980
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09-07-2010, 03:52 PM
| #7 |
| Rock Crawler Join Date: Sep 2006 Location: Lititz
Posts: 787
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All these have been balanced charged every time. They have all been used with a lipo cut-off. They all have some puff to them and they all seem to work fine. They are all Turnigy 1300 30c 4 cell packs that I run on a Losi moa.  Am I living ignorantly dangerous here? |
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09-07-2010, 11:28 PM
| #8 | |
| I wanna be Dave Join Date: Nov 2009 Location: Houston
Posts: 2,004
| Quote:
It is puffed maybe 5-10%...I guess I will send it into Maxamps to be on the safe side. | |
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09-09-2010, 07:48 AM
| #9 |
| RCC Addict Join Date: Mar 2010 Location: Alburtis
Posts: 1,227
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Puffy is one thing, squishy is another. I know, I am introducign another very techincal term.  Until you see one compeltely go bad, it kind of makes you nervous when they puff a bit. When they go bad, it looks like the battery is 9 months pregnant and busting at the seams. I think a little puff is no big deal, but squishy is bad. Wes |
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09-09-2010, 08:00 AM
| #10 |
| Quarry Creeper Join Date: Oct 2008 Location: florida
Posts: 353
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How do you dispose a bad lipo?
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09-09-2010, 08:33 AM
| #11 |
| RCC Addict Join Date: Apr 2009 Location: Token's life matters
Posts: 1,836
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09-09-2010, 02:31 PM
| #12 | |
| Rock Crawler Join Date: Sep 2006 Location: Lititz
Posts: 787
| Quote:
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09-09-2010, 05:52 PM
| #13 | |
| RCC Addict Join Date: Mar 2010 Location: Alburtis
Posts: 1,227
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Garbage can, unless you are in the UK and then it would be a refuse bin. Seriously though, probably not the most environmentally friendly thing to do, but whatever. Wes Quote:
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09-09-2010, 07:09 PM
| #14 |
| Quarry Creeper Join Date: Apr 2006 Location: sweethome
Posts: 452
| batt
Ya i had one do that to 2s 7.4 what would cause this?
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