Scroll down and you'll find 1300 mAh Vision Spinners. There are other places where you can find these for a dollar or two less but I get mine from GotVapes. The more mAh, the longer the charge lasts.
The only real difference I've found between Twists and Spinners is that I can see what voltage I'm at with the Spinners much easier than the Twist. With the Twist, because the numbers are etched into the metal, I have to hold the battery "just so" under a bright light so I can see the numbers. With the Spinner, it's right there and very easy to read -- unless you get the chrome one. That's been a bit harder for me to see.
Ronni reacted to Tam in What is the difference in the Vision Spinner and the eGo Twist.