According to the calculator linked below, an 80W device vaping with a 0.2Ω coil, you need a battery with a vaping amp discharge of 20A.
http://www.myvaporstore.com/ohms-calculator-for-vape-safety-a/292.htm
Keep in mind, LG, Sony, Samsung, and Panasonic/Sanyo are the only vaping battery makers. Everyone else rewraps those batteries under their own brand label.
The LG H2, Sony VTC6, and Samsung 30Q are all 3,000mAh 20A batteries. If you are looking for a safe bargain rewrap, Mooch the vaping community battery expert's most recent battery test results uploaded below.