Repurposing a cell phone Li-Ion battery for a project?
I have three 3.7v Li-Ion batteries laying around that I used to use with my HTC G2.
My question is: could I repurpose these batteries as a power source for my e-cig?
I've seen some articles on repurposing them, but they don't exactly explain the method.
Does it only require making the positive and negative contact as noted on the battery?
So...out of four contacts, I'd only be using the two?