So I have 3 Twists... well actually, 2 Twists and a Vision Spinner. The silver Twist, I've had for a good 6-7 months or so, probably been used daily since I got it. It's been working fine until earlier today at work, it crapped out on me. It usually lasts me all night with the amount I vape. I did notice that when I charged it earlier that night, it seemed to require less time before the charger turned green. After it died on me and I came home, I tried charging it but the charger just stays green. It will blink 5 times when I attach it to the charger, but it stays green and doesn't charge. Is this battery dead or is it fixable? I mean, I know these batteries eventually die and I have had it for a long while... I got this one from My Vapor Store.