Top battery for my "e-cigarette"

I bought because of the price and the recommendation by friends to me these batteries. Use it as a battery for my battery to support my evaporator to fire. Price / performance is really good. Whether the discharge curve is really true, I can not say, but they function without problems Sub-Ohm evaporators (in my case a Kanger subtank Mini 0.5 OCC). The small plastic packaging also makes a good impression. Sent was pretty fast! Batteries also very well packaged and labeled.