The guy with no name, as he refers himself, at Matchbox Instruments has several new products coming out. A couple of them are the 14500 and 18650 cells. The 14500 is rated at over 7 amps, test results can be viewed here Test/Review of MBI Nuke 14500 650mAh (Black). It will be interesting to see what his 18650's will be able to pump out.