Here's an informative video on 18650's great synopsis of the current batteries that you're talking and most other vapers want to know about .... Which is, how did they test, and "WHICH ONES SHOULD I buy" ? ..... IF you think it's too long of a video skip to around 8 min in. And if you think this post is entirely too long skip the pm entirely
The Amp Hour ep1: Selecting batteries: http://youtu.be/xNhOPL1SU2Q
Or just know that this kid is pretty knowledgeable and highly recommends the samsung 25r's says they match up to the vtc5's which are really 20 amp continuous?? I'm taking this kids word on it! I'm buying Samsung 25r's!!
I have a dozen, they're fine, I also have a dozen HE2s and they're about the same