These batteries are genuine Kanger EVOD batteries rated at 1000mAh. To turn the battery on/off, simply click the button 5 times to activate/deactivate. Charging time is about 3-4 hours.
Most vaper’s report that they get at least 7 hours or more of use time with the 1000mAh battery with many others reporting it can get them through an entire day when combined with a Kanger EVOD or Kanger T3s style bottom coil clearomizer. Your actual performance may vary but a 1000mAh EVOD battery is quite a step up in performance when compared to a cig-a-like cigarette sized battery commonly sold with over priced starter kits.
You can use EVOD, T3s, MT3s, Protank Series, or any eGo or 510 threaded clearomizer with this product.