Samsung ICR18650-20 ?

[Drunkskunk]

Anyone know anything about Samsung ICR18650-20 batteries?

All I know is they are 3.7V nominal, Li-Ion. But it doesn't say wether they are LiMN, LiMnCo, LiCo or something safer.
I broke these out of my dead laptop. I'd planned to use them for my headlight, but not if they end up being LiCo.

 

[paultrafalgar]

Looks like cobalt, Drunkskunk, if you look here:
http://www.samsungsdi.com/contents/en/product/battery/structure.html

 

[Drunkskunk]

Thanks. Odd. a Cylindrical Lipo... and only rated for 2 C. Oh well, can't hurt to use them. There not getting used for anything else now.