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

lincpimp 04.01.2009 11:36 AM

Quote:

Originally Posted by himalaya (Post 275158)
Hi Linc, are Neuenergy Packs actually using Enerland cells? Note their capacity numbers are completely different to the ones listed on Enerland's website for their XP XQ cells.

I always thought they were enerland. They are assembled similar from the outside, and they definitely have tabs on each end, and only enerland and elite do that.

I have not pulled any neu packs apart yet, no dead cells so far.

In fact I have not dealt with an enerland based pack that had anything other than physical damage, no qc issues, tabs falling off or much else.

I did have one trakpower pack that smoked a bit during a charge, turned out a balancer wire must have been bad (maybe pinched and cut thru most of the strands?), and it got hot and melted the insulation. I popped it open and changed the wire out, no issues since...

Otherwise my experience with enerland cells has been great. I have made and reconfigured a ton of packs by them, with great results.

magman 04.01.2009 10:00 PM

I forgot to post this earlier in the week...

I had the pimp do some mods to a couple of my batts....and I am happy to report that he did a professional job. The manufactures could take a lesson or 2 from him on wrapping batteries.

Thanks...another satisfied customer!

brushlessboy16 04.01.2009 10:04 PM

Any word on those 2s hardcased rcm's linc ;)

rawfuls 04.01.2009 10:07 PM

Any experience of making a hard case for a lipo Linc?

slimthelineman 04.01.2009 10:22 PM

hey linc, ever tried to replace a tab on a neu cell? i have a couple lying around, is there hope? the cells are in excelent shape other than the damaged tabs.

lincpimp 04.01.2009 10:36 PM

Quote:

Originally Posted by brushlessboy16 (Post 275341)
Any word on those 2s hardcased rcm's linc ;)

They were puffed and way out of balance. I tried some slow charging but the cells were taking charge at different rates, so I quit...

Quote:

Originally Posted by rawfuls (Post 275344)
Any experience of making a hard case for a lipo Linc?

Nah, never bothered. But I do have a few trakpower and enerland cases hanging around. If the cells fit in I could put whatever in there.

Quote:

Originally Posted by slimthelineman (Post 275354)
hey linc, ever tried to replace a tab on a neu cell? i have a couple lying around, is there hope? the cells are in excelent shape other than the damaged tabs.

I have replaced tabs before, if you want to send what you have to me I can give them a try...

brushlessboy16 04.01.2009 10:49 PM

Aw, dont quit, Belive in yourself :)

lincpimp 04.01.2009 10:54 PM

Quote:

Originally Posted by brushlessboy16 (Post 275374)
Aw, dont quit, Belive in yourself :)

The problem is that the pairs of cells were discharged at different rates, but all over their burst ratings. At least that is what I believe. So even if they were to work again, I doubt that they will ever hold the same capacity and would go out of balance very quickly, and may not even work...

himalaya 04.02.2009 12:54 AM

Quote:

Originally Posted by lincpimp (Post 275205)
I always thought they were enerland. They are assembled similar from the outside, and they definitely have tabs on each end, and only enerland and elite do that.

I have not pulled any neu packs apart yet, no dead cells so far.

Surely they are great packs, but seems like there are more good cell manufacturers than just Enerland.

I just paid some small attention to the details, what I found is FlightPower, PolyRC & Hyperion's packs all have capacity numbers accurately match Enerland's cell series, say 30C XQ series, 700/1200/2000/3200/4500 mAh,or twice the number for a 2P config. But NeuEnergy has 800/1500/1800/2100/2500/3300/4100/5000, none of them match Enerland's cell.

Also there are some Chinese LiPo maker do their cell's having tabs on both ends.

lincpimp 04.02.2009 09:50 AM

Quote:

Originally Posted by himalaya (Post 275397)
Surely they are great packs, but seems like there are more good cell manufacturers than just Enerland.

I just paid some small attention to the details, what I found is FlightPower, PolyRC & Hyperion's packs all have capacity numbers accurately match Enerland's cell series, say 30C XQ series, 700/1200/2000/3200/4500 mAh,or twice the number for a 2P config. But NeuEnergy has 800/1500/1800/2100/2500/3300/4100/5000, none of them match Enerland's cell.

Also there are some Chinese LiPo maker do their cell's having tabs on both ends.

Enerland do offer quite a few different cells. I have found that the 5000 30c cells are offered in different lengths, a short and a long. These cells are the same with all of the mfgs that offer them.

As far as the tab on each end goes, I pulled my first rhino pack apart last night. It certainly has the enerland style cell layout, but is assembled differently. None of the std enerland markings on the foil either.

lincpimp 04.02.2009 10:02 AM

Question time...

Who do these belong to? Real name is Michael Chin...

http://i206.photobucket.com/albums/b...p/DSCF3234.jpg

And the lower pack is a great example of a puffed cell. I do not think I have ever seen a cell that puffed...

Arct1k 04.02.2009 10:24 AM

I know the guy linc DBB888 on GSRCRC from Edison NJ - It was a Losi 4s pack correct?

I sent him your way... I can't see pics from office

lincpimp 04.02.2009 11:41 AM

Quote:

Originally Posted by Arct1k (Post 275440)
I know the guy linc DBB888 on GSRCRC from Edison NJ - It was a Losi 4s pack correct?

I sent him your way... I can't see pics from office

Yeah, looks like a losi pack, has a losi balance plug (another style plug???, shoot me now!!!) and an EC5 connector, and is 4s. I am guessing that he wants a 3s pack, but I am not sure what balance connector he will want, as I do not have the losi plugs and an not sure where to get them from... Actually he may be in luck, I think I have some sort of equinox adapter with the losi plug on it, or maybe a tp plug will work, pin spacing looks to be the same...

He also sent me a maxamps 8000 4s pack... I vaguely remember him pming me but I cannot remember what he said, and no instructions in the box either:rules: Plus that thing is WAY out of balance, with some of the cells over 4.2v... Does this guy have a balancer? I think he needs one, or some lipo charging "tips"...

Thanks Chris... And what is GSRCRC?

Arct1k 04.02.2009 11:51 AM

I can pm him tonight and confrim - Garden state rock crawlers...

Losi pack is whatever you can do IIRC - Don't know anything about the MA pack...

He seems pretty switched on I think he bought the Losi like that for peanuts...

He actually got someone to sell him a broken MMM for 25 and then sent it to castle - asit was a v2 they replaced it for free!!!

Any word on the axles?

lincpimp 04.02.2009 12:32 PM

Quote:

Originally Posted by Arct1k (Post 275469)
I can pm him tonight and confrim - Garden state rock crawlers...

Losi pack is whatever you can do IIRC - Don't know anything about the MA pack...

He seems pretty switched on I think he bought the Losi like that for peanuts...

He actually got someone to sell him a broken MMM for 25 and then sent it to castle - asit was a v2 they replaced it for free!!!

Any word on the axles?

Still looking for some axles for you...

The Losi should make a decent 3 pack. Looks like the other cells are ok, all are under 3v per cell, but not below 2v per cell so they should charge back up. Might have some loss of capacity though.

I have the maxamps pack balancing out right now. It had voltages of 3.97, 4.35, 4.25 and 4.14... It will probably take all day to get down to sub 4.2v on that one paralleled pair. Looks like he charged it without a balancer, as the pack voltage was almost at 16.8v. Good thing they can take a bit more voltage than they say, but anymore and it may have popped... Plus he may now have a weak cell in there... God I hate 2p packs with issues. I will most likely have to separate all 8 cells and make up 1p packs and then test them in something, just to see if the cells can handle load. Then I get to weed out the bad cells and then make something out of them, all while not destroying the tissue paper thick tabs.

_paralyzed_ 04.02.2009 12:41 PM

You're doing good work Linc. A handy guy will always have a place in any economy. Now, a handy-capped guy.............

lincpimp 04.02.2009 01:16 PM

Quote:

Originally Posted by _paralyzed_ (Post 275480)
You're doing good work Linc. A handy guy will always have a place in any economy. Now, a handy-capped guy.............

Thanks Harold, but I do not really see why a handy guy who wears a cap would be any different to a regular handy guy? Maybe he could stand out in the sun for longer?

Hardstyle 04.02.2009 01:56 PM

Hey lincpimp. I have two puffed 3s 8k MA packs. Was just wondering would you be interested in them? I really dunno what to do with them so desided to ask you..

lincpimp 04.02.2009 02:05 PM

Quote:

Originally Posted by Hardstyle (Post 275500)
Hey lincpimp. I have two puffed 3s 8k MA packs. Was just wondering would you be interested in them? I really dunno what to do with them so desided to ask you..

Sure, do you want to send them to me and I can examine them and see what can be salvaged?

lincpimp 04.02.2009 02:08 PM

Metallover, I just recieved your lipo. I do like your wiring very "inventive".... Also thanks for the free coke coupon!!!

Should be able to get it correctly assembled this evening and get it back in the mail. Do you want a new deans plug and 13 gauge wiring? Not sure if you wanted to keep the sub 14 gauge wiring and the hxt deans knock off that is on it. I do not currently have any jst females... I do not use jst on anything so I never bothered to make adapters...

Hardstyle 04.02.2009 02:28 PM

Quote:

Originally Posted by lincpimp (Post 275506)
Sure, do you want to send them to me and I can examine them and see what can be salvaged?

Yes that would be nice :yes: Don't know where to use them though if you can save some of the cells.. Too bad C ratings..
How can I send the packs to you and is the shipping costs expensive? Have to be honest, never shipped anything to abroad :tongue:

lincpimp 04.02.2009 03:12 PM

Quote:

Originally Posted by Hardstyle (Post 275521)
Yes that would be nice :yes: Don't know where to use them though if you can save some of the cells.. Too bad C ratings..
How can I send the packs to you and is the shipping costs expensive? Have to be honest, never shipped anything to abroad :tongue:

Hmm intl shipping. I usually just use the Post Office and go with some sort of ground shipment. That is the cheapest, but it does take a while. I just wrap them up well in bubble wrap and make sure everything is a snug fit in the box. That keeps the weight of the package down, but keeps the packs safe.

Hardstyle 04.02.2009 03:34 PM

Ok thanks.
Pm me your address. Have to explore those shipping options more closely.. I'll let you know when they leave from here.
Should I charge the lipos before I ship them?

Rustler_Racer16 04.02.2009 04:56 PM

I'm having a bad day... Here we go... I was checking the individual cell voltages of my Zippy-H 3S 5000 pack and I wasn't paying attention and touched my voltmeter tips together. Naturally it made quite a startling sound and a lot of smoke. It scared me so I instantly dropped it all on the counter. Upon further inspection, the middle two wires melted together, pulled out of the balancing tap about a third of the way (won't push back in), and melted the tap so that it won't plug into my balance board anymore...

Can you fix that? Could I have ruined the cell? :cry:

lincpimp 04.02.2009 05:16 PM

Quote:

Originally Posted by Rustler_Racer16 (Post 275593)
I'm having a bad day... Here we go... I was checking the individual cell voltages of my Zippy-H 3S 5000 pack and I wasn't paying attention and touched my voltmeter tips together. Naturally it made quite a startling sound and a lot of smoke. It scared me so I instantly dropped it all on the counter. Upon further inspection, the middle two wires melted together, pulled out of the balancing tap about a third of the way (won't push back in), and melted the tap so that it won't plug into my balance board anymore...

Can you fix that? Could I have ruined the cell? :cry:

As long as you have separated the wires, I can definitely replace the balancer harness and apply shrink to the pack.

Rustler_Racer16 04.02.2009 05:30 PM

Ok. I was able to pull apart the melted insulation, so it's not like the actual wires fused together (goodness that would be horrible). How much do you charge for that? About how long is the turn around time?

Thanks

lincpimp 04.02.2009 05:32 PM

Quote:

Originally Posted by Rustler_Racer16 (Post 275605)
Ok. I was able to pull apart the melted insulation, so it's not like the actual wires fused together (goodness that would be horrible). How much do you charge for that? About how long is the turn around time?

Thanks

PM sent to you.

Metallover 04.02.2009 05:55 PM

Quote:

Originally Posted by lincpimp (Post 275507)
Metallover, I just recieved your lipo. I do like your wiring very "inventive".... Also thanks for the free coke coupon!!!

Should be able to get it correctly assembled this evening and get it back in the mail. Do you want a new deans plug and 13 gauge wiring? Not sure if you wanted to keep the sub 14 gauge wiring and the hxt deans knock off that is on it. I do not currently have any jst females... I do not use jst on anything so I never bothered to make adapters...

I would like new wire, that wire is a little wimpy. You can do whatever with the deans plug, there's nothing wrong with the current one that I know of. That's ok about the female jst adapter too... I might have found a solution.

And make sure to enjoy that pop! Thanks for doing this for me Linc.

lincpimp 04.02.2009 08:09 PM

Quote:

Originally Posted by Metallover (Post 275622)
I would like new wire, that wire is a little wimpy. You can do whatever with the deans plug, there's nothing wrong with the current one that I know of. That's ok about the female jst adapter too... I might have found a solution.

And make sure to enjoy that pop! Thanks for doing this for me Linc.

No prob, lipo is done. New tap wires, new deans plug, new 13 gauge power wires. And new black shrink that does not look like it was applied by the blind...

I will drop it in the mail on my way home, priority of course. And thanks for the pop!!!

Metallover 04.02.2009 09:05 PM

Awesome! Thanks Linc! Sounds like you liked my shrinkwrapping skills. Done with a lighter I might add... no wait. It was a propane torch.:lol:

Glad you liked that pop.. Make sure to take tax money with you! It's not exactlyfree. Thanks for getting it out fast too!

I got some labels made thanks to Overkill and I'll post a pic with the label on. Should look better then new now! Thanks again linc! I'll post some pics when I get the lipo and when I get the label on.

mohanjude 04.03.2009 01:36 AM

Quote:

Originally Posted by lincpimp (Post 275673)
No prob, lipo is done. New tap wires, new deans plug, new 13 gauge power wires. And new black shrink that does not look like it was applied by the blind...

I will drop it in the mail on my way home, priority of course. And thanks for the pop!!!

"And new black shrink that does not look like it was applied by the blind..."

I am rolling on the floor reading that - ouch.... I must say that plastic shrink is like onion skin - it just vapourises if you apply too much heat on one spot. Using a blow torch ?? even my 2 cents gas lighter blows holes in the shrink. Have to use a hair dryer to ensure even shrinkage.

lincpimp 04.03.2009 01:40 AM

Quote:

Originally Posted by mohanjude (Post 275784)
"And new black shrink that does not look like it was applied by the blind..."

I am rolling on the floor reading that - ouch.... I must say that plastic shrink is like onion skin - it just vapourises if you apply too much heat on one spot. Using a blow torch ?? even my 2 cents gas lighter blows holes in the shrink. Have to use a hair dryer to ensure even shrinkage.

I figured someone with a dry sense of humor would like that!

I use a heat gun on low setting to shrink the packs. Heat the ends a bit to get them almost tight, the run sown the narrow sides, then the wider sides, then finish off the ends. Seems to produce the best repeatable results in that order...

snauty 04.03.2009 07:36 PM

Hey lincpimp, we just talked on email about my true rc batts.
heres a pic of what the cell looks like.
http://i240.photobucket.com/albums/f...s/DSC00370.jpg
http://i240.photobucket.com/albums/f...s/DSC00369.jpg

rawfuls 04.03.2009 07:38 PM

Jessus, what on earth did you do to that battery?

I at least clean my batteries (just a baby wipe) on the exterior haha.
At least every run :P

I'm OCD for cleanliness. rofl

lincpimp 04.03.2009 09:39 PM

[QUOTE=snauty;275989]Hey lincpimp, we just talked on email about my true rc batts.
heres a pic of what the cell looks like.

Yeah, looks like you have 1 bad cell. So you have 3 good 4000 cells, so I can make a 2s 4000 or 3s 4000 pack. (or a 12000 1s pack, but who wants that)

Quote:

Originally Posted by rawfuls (Post 275991)
Jessus, what on earth did you do to that battery?

I at least clean my batteries (just a baby wipe) on the exterior haha.
At least every run :P

I'm OCD for cleanliness. rofl

I think you are OCD for more than just that...

rawfuls 04.03.2009 10:02 PM

Haha, shut it:lol:

snauty 04.04.2009 12:23 AM

Jeez i didnt think it was that dirty.

Hey can i send you both batteries to make sure theres nothing wrong with the other.
And can i have the shipping details.

snauty 04.04.2009 12:26 AM

And sense it would probably 2s 4000, can you take the extra cell and make a another 2s 4000 mah pack with the other battery, and I will have another 3 cells left over, hrrm let me think about that.

lincpimp 04.04.2009 12:30 AM

Quote:

Originally Posted by snauty (Post 276175)
And sense it would probably 2s 4000, can you take the extra cell and make a another 2s 4000 mah pack with the other battery, and I will have another 3 cells left over, hrrm let me think about that.

Sure, I can make any combo you like out of the 7 cells you have. Pm sent to you with shipping info...

snauty 04.04.2009 10:33 AM

Hey what about reparing the lipo itself. Can you buy another cell to put in there.


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