RC-Monster Forums - Lipo repair

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- - Lipo repair (https://www.rc-monster.com/forum/showthread.php?t=16241)

Quote:

Originally Posted by rawfuls (Post 254521)

So after it puffs, it's useless? Both in fun running it, and killing it?

Yeah, once they puff they are done. The internal chemistry in the cell causes the puffing, usually under very high discharge, or a low voltage during discharge. Some of the cells internal turn to gas, so it is damaged internally. I have revived non-puffed cells that discharged to very low voltage slowly, but puffed cells are done.

In English...

Nevermind, I got it :P

Interesting..

i now have the 8400 35C packs and they seem to be doing well

Quote:

Originally Posted by kulangflow (Post 252703)

Nope, Austin. He said they have a totally different source and that they are a big improvement in cell quality. While Jason and I are "less than best friends", Austin and I get along pretty well.

Austin had sent me a 25C 8k pack and it was significantly better than the previous "20C" packs. Who knows about the rest of them? I don't see myself putting any money into their lipos anytime soon, but I am hopeful that the new packs are as good as advertised for those who do purchase them.

Here is some info from the actual PM's:

"It is a different source that the new cells are coming from, yes. We actually will be upgrading all the cells to 30C over the next month or so. The 3000s will become 3250 30C cells(with no increase to price by the way). They will be followed by the 5000 cells, then the 4000 cells.

We tested them at 30 and 35C. They get about 2500mah at 35C constant and almost 3000mah at 30C constant with good temps. They are a winner. Its the best 3000 cell we have ever tested by far.

Lets see... at 35C it would last a little over a minute the way I figure it. I am thinking that there will not be many guys running it at even 30C constant for the 2 minute run time.

Bottom line is that voltage under load will be very high and it should not hit cut off under a short high amp load.

-Austin"

Love them or hate them, it's always nice to see improvement.

I puffed one the 25C 8000 packs! however i had the warranty and now have the 35C 8400's. After 5 runs i can tell these are much much better packs. They dont heat up in either my MMM 2200 or MMM 8XL set ups. They also seem to stay in near perfect balance.

i have a 4s 3700 pack with a bad cell. not puffed, feels hard, but one cell wont hold voltage or charge. wanna fix it?

Quote:

Originally Posted by auto2 (Post 259920)

i have a 4s 3700 pack with a bad cell. not puffed, feels hard, but one cell wont hold voltage or charge. wanna fix it?

No prob, you can send it to me and i will take a look at it. What kind of pack is it? I will pm you the addy.

Lipo repair feedback

I just got my lipos back. I'm impressed, they look like new, they're balanced and ready to use.

I spent under $70 with shipping and the repair, easily worth it when my other option was to junk the packs at over $200 each.:yipi:

Quote:

Originally Posted by ilpufxit (Post 261627)

Looks like I got something right....

Very cool that you do this for the forum here! Just sent you a pm regarding rewiring a pack for me. Jeremy

Quote:

Originally Posted by Jeremy1976 (Post 262574)

Very cool that you do this for the forum here! Just sent you a pm regarding rewiring a pack for me. Jeremy

No prob, hate to see people throw away good cells, and money!!!

hey linc ive got a 6s 4000 ma pack that puffed 2 cells, this will be the third time ive had to rebuild this pack(balance tap shorted this time) and i was wondering if you would like to have the four good cells. not wanting a whole lot for them considering the pack cost me around $300. or maybee a trade? any how if anyone wants the 4 good cells pm me.

Quote:

Originally Posted by slimthelineman (Post 263022)

Sent you a PM.

Insides of a Polyquest 5000 30c 2s hardcase

Got a PQ hardcase from a member here to fix the external wiring. I popped it open and look what I found!

http://i206.photobucket.com/albums/b...p/DSCF3086.jpg

Made in china??? I guess that enerland does have some chinese cells in their lineup, or polyquest is not using enerland cells? I thought that polyquest was enerland's in house brand, but I may be wrong. Anyways here are few other pics of the cells. Note that the cells have the pos tab on one and and the neg tab on the other. I have only seen enerland cells having this feature, as all of the other chinese cells I have seen have the tabs next to each other on one end. Zippy-r packs appear to be made of enerland cells too.

http://i206.photobucket.com/albums/b...p/DSCF3087.jpg
http://i206.photobucket.com/albums/b...p/DSCF3088.jpg

Interesting. So they are Enerland cells? Just made in China?

They are the same design as enerland cells, and I have never seen that design used by any other mfg...

Hmmm, so either they are Enerland or they are bullshitting about the cells in the packs they make... For $130 new for this pack I would hope they are Enerland.