Right way to use a lithium ion battery

[dangkhoa02106]

Sorry to post again but may old topic in new member thread had gone so far.
I have a li-ion battery at 3000 mah, 3.7V, built-in PCB (to prevent over-charged, over-discharged, short circuit) but I do not have any information of the C rate. The brand name is Fenix and another is TrustFire. So should I use it directly in my mod, do I need another protected measures?

And another silly question, I have to built a button and a main switch but should I connect it on the negative side or on the positive side?

Thanks so much.

 

[rolf]

hi danghoa
a vent hole in the bottom of the battery case I would recommend.
the atty don't care ositive or negative...a normaly open switch in either the neg or pos line is fine to complete the circuit.when you activate the switch.