Moved to Batteries & Chargers subforum
To answer your question, yes it is designed to charge those batteries

It will charge them up to around 4.2 volts. When a battery is listed as 3.7 volts, that is its nominal voltage but the actual charge will be around 4.2 at the fully charged state, then this voltage will drop as the charge depletes.
For some more in-depth reading on batteries and chargers, I highly recommend you check out the links posted in this thread:
http://www.e-cigarette-forum.com/fo...43-batteries-chargers-multi-meters-forum.html There is a
lot of good info in there.
FWIW, I know it may look like there is a lot to learn, but it's totally worth learning to understand the products we're using, how to use them safely and how to get the most performance out of them. It really does get a lot easier once you've got learning the basic info under your belt
