outrage 25c 2500Mah Puffing?

[dieselracer]

I have had my Outrage 25c 2500 lipo for about 2 months now. At around 45 flights the lipo started to Puff only at the end of the flight. Everytime i fly it. The lipo comes down slightly puffed and later the lipo goes back to normal. Has anyone else expeirenced this? My lipos have never been overdischarged.

[vicrc]

Same here about the same number of flights on two of my outrage

[Scotty T]

Interesting. It would be nice to know what kind of pinion you are using, what differences in ESC, etc.

Can you expand on that cause it would be interesing to find out what's the main factor here?

I'm using stock everything accept the aluminum upgrades where possible.

The outrage battery is awesome and comes off cool every flight, granted I only have maybe 10 - 15 flights off this pack.

[dieselracer]

The set up is.

Scorpion 1400. 15t pinion. cc80 at 100%. 3090 RPM at center stick.

[broke]

3090 you say gee thats massive you dont need that type of head speed

[oteskate]

3090 you say gee thats massive you dont need that type of head speed

Yeah, that is pretty high. You could probably stand to go down a pinion or so, but still he shouldn't be puffing packs after that short number of cycles. I think these companies need to really take a close look at the QC on their cells.

[outhouse]

[3090 you say gee thats massive you dont need that type of head speed ]

HE DOES lol :thumbup:

[heliboy88]

So what happened to this outrage packs? I've just asked at another thread if someone has 100 cycles on the pack and tell us how he feels, and all of a sudden i'm reading at least 2 persons here saying their packs puffed after about 45 charges. I think i've to rethink of getting the outrage. Anyone else has issues with the outrage, please share your experiences.
Thanks a lot to everyone sharing.

regards,

[vicrc]

My two packs are both in the 40 cycles. They come down warm normally but hot on hot 90+ degree days like all my other packs. They are not as firm as compared to the first 25 cycles. I ran stock motor at 13 pinion for about the first 25 cycles of each pack and then ran a Z20 1470kv at 14 pinion the rest of the ways, both motors producing about the same headspeed. I am running the packs on average 3:30 sec and put back around 1500-1700 back in.
I also have the same number of cycles with my zippy-r packs, they don't have the power as with the outrage but no puffing on those, even though I run my zippy at 100 percent and 90 for the outrage. I also picked up a set of FP Evo 2500, but only put about 10 cycles on it.

[WayneBrown]

IMO if the swelling goes down, it's not puffed. Puffed generally stays puffed. You may have some loosening of the heatshrink due to heat of the pack, or even the wires heating from the load.
Check the temp of the pack, if possible the center and ends for comparison, especially the end where the wires exit.

[Scotty T]

Now I'm no expert, so I'm just going off the book.

The manual say that you shouldn't go over 2650 RPM.

Now I was watching a circuit pro the other day, who modded his, and he had insane head speed. I saw this thing climb like I've never seen a heli climb.

His outrage pack came off much hotter than mine does.

I asked him about the head speed thing and he didn't say that he wasn't supposed to do it. He kind of gave an oh well response. So he knows it wasn't good but he was having fun. Not to mention that sponsors probably buy this stuff for him all the time.

[psindrup]

IMO if the swelling goes down, it's not puffed. Puffed generally stays puffed.

Wayne - not to be a smart a.., but if a LiPo "changes shape" I would consider it to puff, and "something is wrong"

LiPo's are not supposed to change size, shape or form during use.


Peter

[WayneBrown]

Wayne - not to be a smart a.., but if a LiPo "changes shape" I would consider it to puff, and "something is wrong"

LiPo's are not supposed to change size, shape or form during use.


Peter
I agree. I am also wondering if the outer shrink wrap may be sealed so tight that when the pack heats up the air surrounding the pack isn't expanding and creating the illusion of a puffed pack. Just a wild guess, I've tried my damnedest to puff one and haven't.

[vicrc]

I agree. I am also wondering if the outer shrink wrap may be sealed so tight that when the pack heats up the air surrounding the pack isn't expanding and creating the illusion of a puffed pack. Just a wild guess, I've tried my damnedest to puff one and haven't.

I would highly doubt that, it would have done it on the first 25 cycles. Its puffing but havent lost any power yet. I can't do continuous 3D so I am really not pushing the pack as much as some great flyer's I know.

[dieselracer]

I like the 3000 RPM. I have been running that RPM for about 350 flights now with no issues. I also have a 30C 2500. with only 18 flights and that one is fine. we will see if it starts to expan as it gets older. The 25C doesnt seem to have the punch it used to. But the 30C is a Monster! I am not sure if i should buy the 3000mah next for just get another 30C. I like the lipos. But im not sure if they should expan after the flight as much as they do. I have only have this happen with the Fullymax lipos and the 1 outrage i have and along with a Defective Kong i got. I like the Lipo. I just can't afford buying lipos every month.

[trextuning]

As someone has already mentioned a puffed pack will stay puffed. If it gets a slightly squidgy feel to the pack like there is a little air in the lipo jacket but then it goes away when the pack cools then that is not a puff. I have various lipos that do this and it is not an indication of power loss or capacity loss, it may be a slightly less than perfect vacuum seal on the lipo pack when it was manufactured and the slight squidgyness or for want of a better word 'small puff' is just air expansion in the lipo jacket.