Hi,
more than one year ago I bought from HobbyKing 2 Lipos for my Copter... unfortunately due to personal problems I never get to start building the copter and never used them.
Now I was starting to look into that things again, and I was checking everything I had, and I found out that one of them is a bit inflated: not like a balloon, but if I press I can feel the finger going down at least a few mm.
I never charged them so they are as the came from HobbyKing.
I have 2 Turnigy Zippy 2200mAh 3S 25C
Actually I also have a "transmitter pack" 2500 mAh 3C S3, still from Turnigy.
I've checked the cells with a multimeter:
for the healthy batteries the total pack is 11,5V with each cell 3.84-3.85 V each.
The puffed battery has 2 cells with 3.85 V while the 3rd one (actually the one where I can feel the empty space) is 0.6V.
What should I do with that one? Can I use it or recharge it? Shall I dispose it (if so, where should I bring it)?
Thank you
Simone
Replies
Simone,
Unfortunately the battery with the cell that measures 0.6v is damaged and must not be charged, discharge the other two cells and then dispose in accordance with your countries local regulations.
I've attached a couple of good guides from http://www.4-max.co.uk
that will help you understand how to look after lipo's and prolong their life.
prolong-life-lipo.pdf
dos-and-donts-lipo.pdf
For sure dispose of it! Do not try to charge it...
Puffed Lipo are dangerous
Hobby shops will take them from you, sometimes for a small fee. But they will dispose of them correctly.