Hi Villager,
These batteries are not protected, but they use a very safe chemistry (LiMN). If you are using low resistance atomizers, these are definitely worth getting and just keeping an eye on.
If you are using a Little Sister, I can tell you that these cells have been approved for use.
Let me know if you have any questions!
Thanks Jason, I'm not planning to use low resistance atomizers - the mod is said to be 5 volts - I would mostly use KR808D-1 cartomizers. I have some LR 510 cartos I could use with an adapter, but I thought that LR anything w/5 volts was a bit risky, right? It's not a Little Sister but appears to be similar (more homemade, not by me!), I could pm the pics.
The protected batts fit the connection, would the IMR's be a bit shorter & need something added? I guess I thought the IMR had more / other advantages besides handling the "high drain" of LR atties, like maintaining a constant ~3.7 volts, maybe lasting longer than the Trustfires? Would the TR-001 charger be good for both kinds of batteries, not overcharging the IMR's, or is there another charger that would be more appropriate?
Last question (promise), do you carry a "dummy" battery that I could use in place of one of the 10440's to have a 3.7 volt option? Thanks again, I appreciate your help.
V