firemanbill

I have two pretty much worthless DN lipo's. These batts have not been mistreated at all and really were not in a very high draw app either. As a matter of fact we have pretty much been running them in my son's Stryker and my Ultimate Bipe.

After about 30 cycles on them here is what we have as a result.

Also note this is two (2) separate batteries not one.

I hope others have fared better with them...

smokejohnson

That's funny...Tom had 2 DN packs last weekend that looked just like that. FWIW he is getting them replaced by the manufacturer. You might ask him.

gfdengine204

Bill,

Where did you win those from?

firemanbill

from my last post to this one this is what it has swelled up to...

It is safely tucked away in hole in the backyard now...

firemanbill

Wish I'd a won those and I wouldn't be bummed.

Red Scholefield

Have had same experience with DN power and their other offering E Power. One just swelled up after a couple of test cycles with my WestMountain Radio CBA discharger at about 1C, the other has less than 20 cycles and is swelling a lot.

Of course the way these people are switching from one cell manufacture to another who knows what next weeks offering is going to be. Better or worse?

firemanbill

Well I'm glad it's not just me Red, I was wondering if I had abused them but form the sound of it I guess not.

Won't be buying anymore of them I reckon.

You are right though... you just never know what you're going to get next...

Matt Kirsch

Wow, and I really like the ones I got at Toledo. My Wattage Crazy 8 finally has the unlimited vertical I've been searching for all these years.

Grasshopper

Bill,

I've bought 10 of the 2150 15C packs and 6 of them are puffed up like a toad. I contacted the DN distributor and sent him pictures of them. Mine were not mistreated at all either. The most they have ever had pulled on them is 19 amps. He asked me to carefully cut all the wires off, both charging and discharging wires and send another photo. I guess this was so I wouldn't continue to use them. I also sent him my purchase document and he is replacing all of them.

It must be an issue with a different manufacturer or batch, because the first 4 I bought are all fine. They are older and had more cycles through them.

firemanbill

hmmm... Maybe I should try that then. Maybe a new batch wouldn't do that.

Matt Kirsch

Darned tootin' you should You paid for working packs, and as long as DN is willing to stand behind their product and work with you, why not give another batch of packs a try?

Grasshopper

I agree Matt. I wasn't going to just toss out 6 packs that were pretty new.

brnyrbbl

I had the same problem with both of my DN Power 2150mAh 20c packs. After 1 and 2 flights respectively in my Trex 450, they puffed. Jun over at Xus Hobby is replacing them for me. I hope the next batch is better!

firemanbill

Well I just shot an email off to him as well so hopefully I can get mine replaced too!

If these were my Waco batts I'd be really po'd!

Flew it again this past weekend so all is well and right with the world!

brnyrbbl

LOL!
On a side note, I have a DN Power charger and I love it. My packs did the same as yours Bill. They started out puffy and then swelled up to where I was afraid to ship them back. I was able to do like Tom and just submit pictures for the 1st pack. They want me to return the second pack that isn't as bad. I wonder if they want to use it to figure out who the supplier of the cells was so they don't use them anymore.

Major Danger

Gee's I may as well throw in my DN squaggle as well. I had a 2S lipo pack swell up on me after 3 cycles. I wasn't sure at first if it was swelling or not. I'd never seen swelling up close and personal. I showed it to a freind who informed me that "yup that thar lipo is swollen ahight"

I gave it a nice saline bath for a couple weeks. I enjoyed the tiny bubble stream slowly rising to the top. Then I did something you shouldn't do, but I did it anyway to kind test out the saline (saltwater) power drain idea. If the cells were dead there wouldn't be a problem. If they still had charge I'd have a cool show.

I shot the twins with a mighty fine CCI Stinger .22 and I was very dissappointed nothing happened.

firemanbill

Yeah I like my chargers as well! Very good. I use them to charge my 4s packs for the Waco as well.

Well... one at a time on each that is...

Danger I got one of the 2s for the Blade CX and it has performed flawlessly. My boy uses it about everyday, 2 or 3 times in his CX2. It has well over 100 cycles on it now with nary a problem... wierd huh?!

Grasshopper

I think Hopper's Neighbor and I are going to take these 6 out to the shooting range and see if a few 9mm and 357 mag hollow points will "Cure" them.

brnyrbbl

The rep at DN Power had me discharge the pack then cut the foil wrap open exposing the stinky insides. After that I was told to immerse the lipo in salt water for 24 hours then dispose of it.

gfdengine204

Forget this talk of salt water. just stick 'em in a box and send them Airmail, right Tom? <smirk>

Grasshopper

Yes, I'll post Kev's address to send them to.

gfdengine204

Not a problem; I don't expect them to arrive....

Tonight on Action News: A Southwest Missouri man is in Federal custody after shipping crappy batteries via air. Film at 11.

FlyingMonkey

That news story has already hit the wire....

http://www.wattflyer.com/forums/show...postcount=1280

I was reading through some current AP articles, and came across this....


A small town US Post Office was engulfed in flames earlier today. Fire investigators have determined the cause of the fire to be illegally shipped batteries. The man responsible has been identified as Tom Grasshopper.

"I asked him if he had any flamible or hazardous materials before I accepted it" says one postal employee. "I remember him clearly, because his legs squeaked as he walked, and he wasn't wearing coruroys, or any pants at all, now that I think about it."

Further investigation has shown that this Mr. Grasshopper is not unused to putting others at risk. A neighbor, who asked to not be identified told us, "He flys his little airplanes all over the neighborhood. My poor little dog nearly dies from fright every time he flies that thing around here."

Federal Regulation states that packages shipped with solid flamible materials must be labeled with an ORM-D label. This tells postal workers that the box contains hazardous material that must ship ground only and cannot ship by air. Mr. Grasshopper did not follow the regulations regarding his flamible batteries, even after being asked by the postal employee.

More on this story as it develops.

FlyingMonkey

I have had nothing but e-Tec's and they have treated me VERY well.

I love my DN Power charger, but I have heard too many bad things about their batteries.

firemanbill

already got a reply from Jun at DN! said to do the same thing you guys have done, cut the wires off and send him pics and shipping info.

I'll let you know how it turns out.