WARNING- See if you will ever buy an Ultrafire after seeing this.....

[TimMe]

Wanna do the same with some of my batts. The are very weak and I wanna try it.. how I will do it right without any dangers? I don't wanna hurt me

 

[starlight]

Wanna do the same with some of my batts. The are very weak and I wanna try it.. how I will do it right without any dangers? I don't wanna hurt me

Eye protection is needed and discharge battery completely is a must.

I used a vise and some channel lock pliers and just pulled the top off. Battery was pointing downward in vise and I used pliers and pulled from the bottom leaving the top pinched in the vise

 

[TimMe]

How I can completly discharge it?

As eye protection I might use my Laser goggles, not the best way but I have nothing better than that.

EDIT: Well, its already discharging when I measure its voltage. Can I be sure that it's fake?

 

[alessnilsen]

I had one of my batteries leaking a strange fluid from a little hole that I accidentally made in the "-" of the cell, that smelled like PVC pipe glue, it still working, but I wonder if someone else had this experience before. The brand is JWS and the cell don't have anything written in it.

I disassembled a old laptop battery and found 6 cells in it, 4 was good, and 2 was dead. I think is safer to use this older cells than use those crap cells.

 

[Livinloud]

If they are the cells in your photo then they are actually Panasonic cells