Is it trashed ? My battery ?

[Frank211]

So i have a brand new GForce 11.1 60c 2200 mah battery, it looks puffed, never ran it until a few days ago. One cell reads 3.16v the other 2 cells read 3.56/57 give or take.

So is it trashed or can i still use it ? Thanks guys .

[micro racer]

Is it "round as a sausage"-puffed or just "a bit squishy"-puffed? Either way, run a balance charge on it, wait a day or two, and recheck the cells. If the cells are within about 0.1-0.2V of each other, it should still be okay; give it a low-stress run (read: no speed runs, and check the temperature frequently) and recheck the cells, same voltage rule applies here. If the cells get way off from each other from just sitting after the charge, or if they're way off from a low-stress run, then it's probably dead. Also, if it DOES look like a sausage, you can still try this, but be even more cautious...

[Voodoobrew]

If it's brand new and puffed return it.

[JatoTheRipper]

Not necessarily trash, but it sure isn't a good battery. See if they will replace it. If not I'd say it's a good time to start avoiding GForce.

[Frank211]

Originally Posted by micro racer

Is it "round as a sausage"-puffed or just "a bit squishy"-puffed? Either way, run a balance charge on it, wait a day or two, and recheck the cells. If the cells are within about 0.1-0.2V of each other, it should still be okay; give it a low-stress run (read: no speed runs, and check the temperature frequently) and recheck the cells, same voltage rule applies here. If the cells get way off from each other from just sitting after the charge, or if they're way off from a low-stress run, then it's probably dead. Also, if it DOES look like a sausage, you can still try this, but be even more cautious...

Light puff, squishy-ish puff, i drained the battery waited a day or so checked the battery agian, 1 cell 3.03 2 cell 3.56 3 cell 3.58, plugged it into the charger, cell's are real close a number or two off of each other, a good sign ??

[Frank211]

Originally Posted by Voodoobrew

If it's brand new and puffed return it.

I emailed them, lets see what they say?

[Frank211]

Originally Posted by JatoTheRipper

Not necessarily trash, but it sure isn't a good battery. See if they will replace it. If not I'd say it's a good time to start avoiding GForce.

Hope it isn't trash ! The other battery i have(also GFORCE) seems to do its job, no worries yet .sent them an email . So those Zippys or nano techs, correct? Lol

[2mtech]

Get one of these:

https://www.amazon.com/Tenergy-Batte.../dp/B0178P8H9U

Balance a battery perfectly down to .01v disparity, and you can measure the internal resistance of each pack too. I'm finding my questionable batteries have respectively varying IR cell-to-cell while my dependable ones are very close to each other.

[Frank211]

I'm charging the battery at 0.8 amps just to be safe, and apparently, each cells is identical on the screen.

[Sneetches]

From my experience with 2 batteries that did that they never fully recovered. The one bad cell would always hit LVC before the other two even though they would charge back up normally.

[Frank211]

Originally Posted by 2mtech

Get one of these:

https://www.amazon.com/Tenergy-Batte.../dp/B0178P8H9U

Balance a battery perfectly down to .01v disparity, and you can measure the internal resistance of each pack too. I'm finding my questionable batteries have respectively varying IR cell-to-cell while my dependable ones are very close to each other.

I have one of those, in Blue..lol.

Thats what was giving me the different readings for each cell.

[Frank211]

Originally Posted by Sneetches

From my experience with 2 batteries that did that they never fully recovered. The one bad cell would always hit LVC before the other two even though they would charge back up normally.

You still have those batteries, or are they dead now ?

[Sneetches]

Originally Posted by Frank211

You still have those batteries, or are they dead now ?

I deaded them myself when they started getting too annoying and possibly unsafe to use, namely when the bad cell would hit 3.2V by the time the others were at 3.8V still.

[2mtech]

Originally Posted by Frank211

I have one of those, in Blue..lol.

Thats what was giving me the different readings for each cell.

I got a blue one too, but it doesn't balance and doesn't have the IR function. That one stays in the backpack just to do cell checks on the trail.

[Frank211]

Originally Posted by Sneetches

I deaded them myself when they started getting too annoying and possibly unsafe to use, namely when the bad cell would hit 3.2V by the time the others were at 3.8V still.

Good to know, now if that happens again with the battery, now i know its no good. That helped a whole lot. Thanks .

[Frank211]

So i plug the lipo into the battery checker, all the cells read different with the 1st cell at 3.07(give or take), that's what the checker reads,plug it into the charger, the numbers are real close to each other 3.30something, is the checker wrong , my charger is a Duratrax 235 , when battery is fully charged,its at 4.19 4.20 4.19.
How does one look at that ? Any ideas ?

[garyji]

Good rule of thumb with lipos. When in doubt, throw them out!

I run everything from one cell micro airplanes to 12 cell big helicopters. It's just not worth burning your house down.

G.

[HumboldtEF]

So did Gforce get back to you?

I'd say you have a bad cell, I think its an internal resistance issue when it discharges unbalanced.
I would get rid of that thing for sure, hopefully it gets replaced.

[Frank211]

Originally Posted by garyji

Good rule of thumb with lipos. When in doubt, throw them out!

I run everything from one cell micro airplanes to 12 cell big helicopters. It's just not worth burning your house down.

G.

Damn it, it's better to be safe than sorry.

[Frank211]

Originally Posted by HumboldtEF

So did Gforce get back to you?

I'd say you have a bad cell, I think its an internal resistance issue when it discharges unbalanced.
I would get rid of that thing for sure, hopefully it gets replaced.

Apparently not gforce, value hobby, but nope, no answer from them.
I guess it makes sense to say bye bye to it. DAMN.