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I hate to disagree with a fellow poster, but mooch rates the LG HG2 as a 20A battery, here is a link https://www.reddit.com/r/electronic_cigarette/comments/7p5pm9/bench_retest_results_lg_hg2_20a_3000mah_18650a/

I mentioned those above... yes I recommend them. Be aware they are 15A continuous discharge, but higher capacity (3000mAh), compared to LG HE2. They will last a little longer between recharges, but won't handle high wattage / low resistance builds very well. Use a vaping calculator to determine how many Amps your builds need... then get a battery that will exceed those requirements, not just "meet them".

You will want a battery that provides continuous 20A discharge rate... there are several that have these specs, but these are the ones I recall off the top of my head... Samsung 25R (green wrapper), LG HE2 (red wrapper), and Sony VTC6 (green wrapper). All of these can sustain 20A discharge, but will support burst discharge of 30A or 35A. If you are vaping in the 80-100W range, even at that low of a resistance, you should be safe with even a 15A battery (Samsung 30Q or LG HG2). The higher the mAh capacity, the lower the continuous discharge ratings. The 15A batteries I've listed are larger capacity 3000mAh, compared the first ones I listed, which are 2500mAh (with exception of the Sony VTC6, which is rated at 3000mAh, and quite expensive compared to the Samsung or LG batteries). Always pair your batteries, and never break the set, for best results... also rotate them between the two slots... If labeling them A and B, put A in the left side this time... then after re-charge, put B in the left side next time it is used....