Welcome to Multi-Rotor UK. Please login or sign up.

Saturday,August 24, 2019, 16:26:28

Login with username, password and session length

Shoutbox

Gaza07:
23 Aug 2019 19:26:42
I agree it does look a lot better for some reasom SMF shorten any recent posts display  :rolleyes:
Andy7:
23 Aug 2019 10:29:15
Nice! Looks loads better.  :beer2:
Gaza07:
22 Aug 2019 22:47:32
Sorted mate  ~~
Andy7:
22 Aug 2019 10:27:36
Sure. But basically, all the subjects are getting cut off.
Gaza07:
21 Aug 2019 18:14:54
Can you pm me a screen shot of what you mean
Andy7:
21 Aug 2019 12:15:41
Gaza - can you make the subject line section in the forum topic list wider? It's cutting off the subject field really short.
Andy7:
19 Aug 2019 09:14:20
Good for you!  ~~
DarkButterfly:
18 Aug 2019 19:13:57
Had another negative encounter, it's been a few years since the last one, just an uneducated ******, going on about drones being illegal yada yada yada.    :-/
Still that didn't spoil my flying time, had an absolute blast  ~~
Gaza07:
07 Aug 2019 19:52:01
ooooh mrs jones  :D
hoverfly:
30 Jul 2019 15:26:34
D.B. you tightwad.. :cool:
Members
  • Total Members: 8066
  • Latest: badger1
Stats
  • Total Posts: 196581
  • Total Topics: 19804
  • Online Today: 40
  • Online Ever: 530
  • (Tuesday,June 26, 2012, 08:34:46 )
Users Online
Users: 0
Guests: 35
Total: 35

Theme Changer





3d - Printworx

Printing 3d Forum

Using LIPO's in the warm weather

Started by Chami82923, Sunday,July 28, 2013, 10:17:51

Previous topic - Next topic

Chami82923

Hi All,

Flying yesterday in the warm weather, and i noticed that the Turnigy nano-tech 3S 2200mah batteries we were using had ballooned, and i use the word ballooned rather than puffed, they were warm and had certainly not been over run (current sensor had only registered 1400mah from full), we allowed them to cool a bit and they still felt squidgy like a ballon, so we put them in a cool place to cool further and they returned to their normal shape (have not tried charging them yet).

Has anyone else experienced similar?

Callum
LF 330 with naza & GPS,
Hubsan X4 & Q4
Mini H-quad with naza m lite.
F550 with naza m lite
Diatone Silverline racing 250 (cc3d)

Biffa

I had four Nano Tech 2200 packs and they all puffed. The have all been given a decent send off (hammer and nail) and held virtually no charge at all at that point.

Very disappointed with the performance and longevity of them and certainly wont buy any more.

http://www.multi-rotor.co.uk/index.php?topic=1717.0
Steve

Leigh

I';ve had zero issues with my Zippy Compacts or 2200 nanotechs in the warm weather.
Aussie on the loose in Belfast.

DarrellW

It';s fairly common to get a slight puffiness but only slight and it should go away when they are cold, since it';s been over 25○C most of my packs have done this but all charge ok and pass my acid test (which is as follows: to do this you need a battery checker - connect balance lead to your checker and run your model up to about 1/2 power and cycle between the cells using the checker and see if any of the cells droops voltage more than the others - if so the pack is on its way out).
Doing this I';ve had no problems in the past 3 years with batteries failing in flight.
I think..........I think I am........therefore I am.............I think!

Ross

I have noticed (and have) some batteries that are cocooned in wrap, when in a warm room (with the hot weather of recent..that';s hot!), they have their wrapping slighly puffed. I concluded that as they were sealed, the air inside just expanded with the heat.
Let's be careful out there.
SAFETY is.. NO accident.

Biffa

Steve

Ross

Sunday,July 28, 2013, 17:04:12 #6 Last Edit: Sunday,July 28, 2013, 17:07:55 by Ross
The Lith  Polys  I have are about 5 yrs old (early types)  and have a wrapper over a wrapper over the guts of the batteries........new they are not and when cool they return to normal. Its only this year that I have noticed this phenomenon.  I have not used these very much but they still charge up to par..

I also have Lith Ions in a black hard plastic case  (6800mA).....goodness knows what goes on in there when its hot......they are used in large scale locomotives.......................
Let's be careful out there.
SAFETY is.. NO accident.