I don't know the current rating of Torchys' batteries you need to get in touch with him and ask. I don't think they are 10amp though, but I could be wrong. check out the current required at an ohms law checker like this one. a 1ohm coil on a freshly charged battery at 4.1v (you don't ever get 4.2volts because of voltage drop) needs 4.1amps of current draw. a 0.5ohm coil needs 8.2amps off the top of my head EFest IMRs are around 5amps AW IMRs are around 10amps if you're going to go for sub ohming then the panasonic CGR 18650CH are 10amp and highly rated.