Lipo Damage?
 

Hello guys, I just got a lipo in a trade and it seems to have some damage to the shrink wrap. Its all the way through the outer wrap and the silver film is damaged as well. What do you guys think? Is it salvagable?
http://i294.photobucket.com/albums/m...t/Zippydmg.jpg

Sorry about the crappy pic, its the best my cellphone can do.

hammer...


nuff said...

If I were you I would be sticking that in a bucket of salty water for a few days. If it was me I would remove that damaged cell and make it just a 5S pack. If you are going to attempt this make sure your soldering skills are up to the task (also your soldering equipment too). Either way there is no way I would attempt to use or charge a lipo in that state.:no:

I abree with big block, that pack should be made into a 5s pack and dispose of the damaged cell. DO NOT try charging the pack as it is or you may be looking for a new place to call home

What did you trade for a damaged LiPo? Nothing of real value, I hope. :no: :no:

Well it wasn't supposed to be damaged. LOL

Have you contacted the person you traded with? Did they say it was in good shape or was it just assumed?

Everything has been taken care of, a full refund has been offered and accepted :)

:yes:

Hey, I sold him those lipos for a good price and there is nothing wrong with them. Leaving the deal between me and Obeast out of this.





I find it hard to believe that you guys have never had any of your lipo get a dent in them and if you did you trashed a perfectly good lipo. Okay maybe there are a few out there that have. Imean the prices of lipos are not what they use to be so whats another 50 - 100 dollars to HobbyKind.

I know there are others out there that have had dented edges on their lips. I have had more then a couple lipos that have had dented edges. I sold him those lipos with only a couple runs on them. In full confidence there is nothing to worry about. Other then the blemish the lipo will perform just like new (which it is) and will last just as long as the other lipo. I stake my reputation on that base on experience and experience alone. I have had more then one lipo in my day with the edges dented in and they went on live long and full lifes in my rc stable. The cell are all good and balance. Was checked before I mailed them out.

I would not take a perfeclty good 6s lipo and turn it into a 5s because the edges were dented. Have you guys had any experience with damaged lipos before. I mean really the one the start a fire in your back room? There is not puffing the cells are all matched. There is no performance difference between the lipo with the dent and the one with out.


Just wondering..... Is there anybody else out there ever have you lipo come out and get dented? What did you do with it? Did you toss it in a bucket of saltwater? Remember the day when one 4s lipo cost 275 dollars. I denfinately didn't dismantle a lipo becuase of a dent and spend another 275 for one. I kept using it, and using it, and using it. Energizer bunny.... Get it?

Good. I can't believe someone would actually try to trade that. Hopefully it was ignorance on their part to the dangers and not intentional dishonesty.

EDIT: I agree with What's_nitro, maybe it's just the pic but it looks like more than a dent.

The corner of the cell looks like it's torn open...............that isn't a "dent".

I too have run "dented" lipos without issue in the past, although I did watch them closely. But I would never run anything that has been torn open, nor would I try to repair a cell that has been torn. Not worth the chance. Pic is blurry, but it looks torn open to me too. Time to break out the soldering iron...

No it was not ignorance. It was giving a good deal to a RCM member. The package I sold was a good price. I passed those 6s lipos onto Obeast for 50 less then I paid only a couple week prior. Secondly I am a reputable saler on all the forums including ebay. If I make a mistake I admit it and make it right. The lipos is fine but if the buyer isn't happy I don't have any problems refunding the item for any reason. Unless they fry the Futaba 3pm I sell them and say it arrived that way. Old ebay wound.

I did have the lipo here in my hand not less then a week ago. It was not a hole then and I don't see how it could be one now. I packed them in nice and tight in the box with the charger and power supplies. It's tough to make a judgement call looking at a picture and not getting the rest of it of the facts of the deal or condition of the sale. The picture makes it look bad but is it damaged or did he actually just get two basically new (3 cycles) 6s 5000mah lipo for 50 off the sticker price. Then on to the idiot that tried to pass off a new lipo. You guys just jumped to the conclusion it was someone trying ot scam Obeast and take his money. I can understand because we do try and take care of one another here. Don't we? So passing on a good buy to another member is usuaully one of the ways we do it.

Anyways enought time spent here. It's all mood point now..... or is it.


Since I am getting out of the hobby I will not be able to test the lipo and report back to tell anyone if it was a bomb or a great buy. So I will need a volunteer from the RCM forum that has been here for at least a year. Someone who post often enought and has a rc setup for 6s lipo. If obeast return the lipo I will send the volunteer the lipo in question under the condition you give it hell and use the crap out of it. Then 6 months come back and let us know if it took a dump or not and which cell it was.

Any volunteers brave enough to charge and run a 6s 5000mAh 30c lipo with some damage on the corner?

would I be happy if I expected a like new lipo and received this? No

would I run it and just keep an eye on it if it were mine? Absolutely

The voltmeter tells us if a cell has been compromised. If that "tear" affected the cell in any way it would lose voltage and not be comparable to the others.

I'm surprised that even on RCM there is so much fear based paranoia about lipos. Wrap that puppy with electric tape and let 'er buck.

Harold your inbox/PM is full. Can't reply via pm but currently I still have what you were asking about.

Me too
 

Me too Harold. Gee If that were mine I would not hesitate to use it, and use it hard. Otherwise whats the point in spending that kind of $$$ on Lipos. Like stated as long as it is still balanced with the other cells no worries. I would just have patched up the damaged area, wrapped it up in more heatshrink or even put the pack into some kind of home made hard case and put her to work.

Whatever the deal was is between Gee and the other guy. If your charging your Lipos in your house without some kind of fire protection, than shame on you anyway. And I don't just mean a fire extinguisher either. Charging any Lipo comes with its own hazards and should not be taken lightly. Charging Lipos should not even be done inside your home without some kind of fireproof enclosure to protect your house from smoke and fire damage. One of the best and cheapest ways that I have seen is converting an old gutted grill into a charging station with an exhaust vent over it in order to remove any smoke from the area.

If there is even minor damage to any of the cells, than patch it up properly and watch it a little bit more closely and move on. Getting all hysterical and panicing over damage that little is just rediculous.

As for selling old Lipos as long as the factual status of the battery pack was disclosed up front no harm no foul. When we purchase items second hand on here or Ebay or whatever we usually require photos of the item before closing a deal. If there is any kind of flaws that were not disclosed up front then a refund is in order. Buying anything second hand is risky, and me personally I would never buy batteries or any kind of electronics second hand. Its just not worth the risk, but thats just me.

cleared:intello:

Well let me say this before I even begin. Gee has been nothing but a true pleasure to deal with. So good in fact, I didnt want to even get his name involved. I was just wanting to make sure itd be safe to run as I am rather inexperienced when it comes to Lipos. All my self proclaimed "expertise" lies with 2 stroke gasoline engines :lol:

Experts.
 

Well lets face it how many experts do we really have in here as far as Lipos are concerned? Its been a huge learning curve for all of us and the technology is still evolving. If it were just a AA battery I would say chuck it, but we are talking about batteries that cost a lot of money. There may be a few guys in here who can afford to just throw part of their investments into the trash, but I surely am not one of those guys. Lipos are like any other chemical product in that they carry an inherent hazard with them that must be respected to the best of our ability. If there is chemicals coming out of a cell, than I would consider it a pretty good idea to avoid using it. If not patch it up and charge it. See if there are any issues with it, and go easy until you gain the confidence that the pack is a solid bet. Pretty basic if you ask me.

Careful Jerry2know BBQ grills are not intended to be used for that purpose.:tongue: I'll test that sucker Gee. I thought alum Hvac tape was made for patching holes in lipos? I stopped balancing every charge after I got a cell spy, I store at 4.2v at all temps and I don't use a lipo sack for charging. I feel I have become somewhat relaxed with the use of lipos.

If you still need someone to do this I am your man Guy. I have the equipemt to charge and monitor the lipo. I too have run dentend lipos, and never had issues. If the foil is breached you can usually cover it up (with the mentioned foil tape) and you may notice a small loss in capacity, or not. Depends. Never lipos deal with the rigors of rc use much better than the old ones. I do not see so many puffed lipos these days.

I'd love to take it if I had the truck to run it! Just got done building the shoddyiest looking lipo for my micro t, works great! hahaaa

Funny. I run just about everything larger than a tmaxx on 6s, so I have a few setups that it could power.

think I could fit it on a micro t?

I would remove that one possibly bad cell and have a 5s pack. It's on the end, so it should be easy to remove. But since it looks like it's on the negative side, it will require a little work on the balancer plug, but that's no biggie.

Just my $0.02...