Nanotech 3s 65 c vs. Dinogy 3s 65 c.

[Brushless55]

The only back to back tests I've seen on here comparing two batteries was by me. I'm not so sure you could really count it either. I ran a 5000mah 50c venom pack against a 6500 65c spc pack. As expected I picked up speed. Had I bought 5000 50c spc packs I would have compared them also but I wanted an upgrade.

I love using my PMono in 4s1p setup to test out my lipo packs
this boat pulls an average of 185amps and I do 2 to 3 laps WOT on our course to see what packs take the beating
SPC and Revo packs are next on my list to try

[MarkF]

If you guys want to see some real testing go to rcgroups.com and go to the battery forum and look up the thread called Battery Load Test comparison. It's very long but you can start with just reading on page 119 to get the tester Joe's opinion on what he has learned so far.

Brushless55

If your battery puffed so quickly I would have giving you another pack no problem. But you chose to not say anything to me and post BS about my brand ever chance you can get. Not sure what that's all about but All lipos puff when over discharged. However when packs are factory defective they usually show themselves in the first couple of cycles and I always take care of that customer when it does.

Mark

[Brushless55]

The ASpec packs compare
I've got a 3s 2200mah dinogy thats very puffy after 6 flights in a 350QX

Aspec can be comparable but they don't have same consistency.

To puff a Dinogy in the 350qx is easy as it has the cutoff low and those cells don't forgive.

that sounds like unstable cells

Actually the ASpec are consistent and develop great power.
And I never fly my quads to cut off, even the stock lipo holds up better... no puffing with the stock pack or my Turnigy packs, and I fly those longer.
Not good if they can't go low

no LVC kicked in...

If you guys want to see some real testing go to rcgroups.com and go to the battery forum and look up the thread called Battery Load Test comparison. It's very long but you can start with just reading on page 119 to get the tester Joe's opinion on what he has learned so far.

Brushless55

If your battery puffed so quickly I would have giving you another pack no problem. But you chose to not say anything to me and post BS about my brand ever chance you can get. Not sure what that's all about but All lipos puff when over discharged. However when packs are factory defective they usually show themselves in the first couple of cycles and I always take care of that customer when it does.

Mark

Please read my posts before posting wrong comments about my battery use
thanks

It was never over discharged
and it was on the 6th flight I believe ( pulling only about 15amps) and I do 3 or more break in cycles before I fly any new lipo I buy
not sure how you call me saying BS when these things are actually happening

I have taken one of my Magnum 3300mah 6s packs down to 3 or 5% by accident in my Blade 500 because the LVC never kicked in and that pack still has not puffed and runs the strongest... so I don't think all cells get puffy for over discharging IMO
my 2250mah 65C Pulse pack I use for my SU29mm comes back with 10-15% several times because I fly that plane hard with a bigger prop, and its never puffed after 20 flights like that, and once down to 9% on the first hard flight with the bigger prop... I love fast prop planes

During heat racing some of my LNE Dinogy / Giant Power packs come back feeling puffy and with temps of 115-125* with 25-35% left in them

[jkr]

Yes you are write .
It ''sounds'' unstable cells.

80+ runs with them and they only have 0.02v/cell diference.

[Brushless55]

Aspec can be comparable but they don't have same consistency.

To puff a Dinogy in the 350qx is easy as it has the cutoff low and those cells don't forgive.

"to puff a Dinogy is easy" you say....
interesting

Yes you are write .
It ''sounds'' unstable cells.

unstable I say...
and now on a different thread we see two other users having issues letting them go below 3.8v per cell

http://forums.offshoreelectrics.com/...627#post584627

starting to sound like ASpec are now as or if not more consistent

[jkr]

Off course it is easy as it is 65c cell.
Don't you know all the strong 60+cells puff easy?
Lower c rates puff harder.
Try a real 60c any brand and see how easy it puffs.

But I don't see this is your thing down there.

[larryrose11]

Off course it is easy as it is 65c cell.
Don't you know all the strong 60+cells puff easy?
Lower c rates puff harder.
Try a real 60c any brand and see how easy it puffs.

Are you suggesting that the packs of 60C and greater have less durability than the packs of less than 60C?

I have been running Turnigy Nano-Tech's in my Cheetah, (6S2P 5000mAh, 1577 KV motor) and have the batts last only 1 season.
This drives me crazy that the packs puff so easily. I have had nano-techs puff while sitting dormant at storage charge.

What batteries have a good calendar life? Are there Lipos that will last 3 or more years, assuming you take care of them?

[keithbradley]

Off course it is easy as it is 65c cell.
Don't you know all the strong 60+cells puff easy?
Lower c rates puff harder.
Try a real 60c any brand and see how easy it puffs.

But I don't see this is your thing down there.

I can't imagine a more inaccurate statement.

[jkr]

Well it is extremely accurate!
Every strong lipo cell needs at least 50% power in it to perform the best and must not be dishcharged under 30%.
Most of the brands out there puff and others builds up higher IR.
Either way they loose performance.

The best lipo cell is the cell that works for your aplication.

In person i run 30,35c for fun/race and 65c for a couple of passes.

Best calendar life only the lower c rated cells.

Energy works in diferent way as we all believed in first place.

[Brushless55]

I can't imagine a more inaccurate statement.

Exactly
my other High C rated packs do not puff under use
so that statement must be an excuse for something hidden

[kfxguy]

Exactly
my other High C rated packs do not puff under use
so that statement must be an excuse for something hidden

mine dont either. as a matter of fact, ive never puffed a pack. My kids have but they are young, and dont listen to me and run them down till the vehicel stops with no lipo cutoff...lol. This happens only when they drive thier vehicles when i'm at work. They have been told that I wont buy them any more lipos..just nimh if they cant be more careful. lol...kids

[Brushless55]

mine dont either. as a matter of fact, ive never puffed a pack. My kids have but they are young, and dont listen to me and run them down till the vehicel stops with no lipo cutoff...lol. This happens only when they drive thier vehicles when i'm at work. They have been told that I wont buy them any more lipos..just nimh if they cant be more careful. lol...kids

oh man!
meany dad
I have taken one of my Magnum packs that I use in my Blade 500 down to 3 or 5% during flight and the LVC never kicked in because the pack kept putting out strong power.... and still months later the 6s pack has not puffed or shown any kind of stress

[keithbradley]

Well it is extremely accurate!
Every strong lipo cell needs at least 50% power in it to perform the best and must not be dishcharged under 30%.
Most of the brands out there puff and others builds up higher IR.
Either way they loose performance.

The best lipo cell is the cell that works for your aplication.

In person i run 30,35c for fun/race and 65c for a couple of passes.

Best calendar life only the lower c rated cells.

Energy works in diferent way as we all believed in first place.

You know, lipos haven't always been "45C", "65C", or even "20C". There was a time when 5C was a lot. I can absolutely assure you that a high current draw on a low discharge pack will puff it without hesitation, in which a higher discharge pack can output the power without the excessive heat/puffing.

Perhaps you are comparing apples and oranges? Poorly assembled packs with sub-par cell matching will easily puff regardless of C rating.
Your 65C lipos are probably either poorly matched or poorly manufactured. Some high discharge lipos also have a higher termination voltage which may mean you are running them to a lower capacity without running at a lower voltage. I bet I could guess 2 brands and easily tell you which one you're running.

I've been pulling more current than ever in testing this year, and my 70C rated lipos are still perfect bricks.

[jkr]

Let me rewrite it.

Any lipo cell that can give power at high current applications must have 50% energy and not to be run lower than 30% of its capacity.

The 30-35c can be discharged lower as they have different chemistry cell but they can't give power for higher amp aplications.

All others you mentioned are irrelevant to my post as I just saying how things are at this moment.

[Brushless55]

Let me rewrite it.

Any lipo cell that can give power at high current applications must have 50% energy and not to be run lower than 30% of its capacity.

The 30-35c can be discharged lower as they have different chemistry cell but they can't give power for higher amp aplications.

All others you mentioned are irrelevant to my post as I just saying how things are at this moment.

uh my Magnum packs deliver much more current than my dinogy and giant power packs and I have run one of them down to 3 or 5% in a 3D heli and never hurt the pack
and heat racing I normally run them to 20-25% every race without the packs heating up like dinogy and no swelling like dinogy
I run my dinogy to 25-30% and they puff, and one pack only went down to 35% and puffed and was not even pulling 7C
my Magnum packs get taken down lower and run harder in different boats I race and no puffing