The Joyetch eGo C-Twist is a slim battery that has literally changed the Vape market in its stealth size, price and accessibility. This “mod” (if you want to call it that) has been a huge boon for smokers who want to quit and start vaping. Its affordable, easy to use and its size is pretty stealth. It fits in your pocket and looks more like a pen than it does a mod.
The key on the eGo C-Twist is the twistable base that lets you vary the voltage from 3.6 to 4.8 volts. The previous eGo batteries absolutely suck in comparison. They always seemed cheap and underpowered. The C-Twist changed the game.
They feature both 510 and eGo connections so they will work with a wide variety of tanks/cartos/atos/etc. They are available in various mAh ratings. I personally prefer the 900mAh version. It lasts a full day and a half for me without recharging.
The key is to get 2 of these so you always have one charged.
Want a nice, big tank for your C-Twist? Check out the iClear 30 from Innokin.