Greetings; I'm looking at a vendor's website, and apparently the 900 mAh Twist is only 10 mm longer than the 650 mAh Twist -- I wish I had read this before my purchase, because I bought the shorter one thinking it would be a lot shorter.
I've got a 650 mAh regular eGo battery, too, and it is about half the size of my 650 mAh twist. The regular goes a lot longer between charges -- I guess is due to the fact that I usually run the VV at a higher voltage than the non=Twist?
Regards
Glenn