This area of the forum isn't visited to often, as strange as that sounds being that there are tons of eGo users out there. In answer to your question, the USB on your computer isn't a good idea to charge your Twist. Your best bet is to just charge it from the wall. It's also not good to use the USB to charge because it may cause harm to your motherboard in the computer. The led being green means it's 100% charged, and it's normal for the led to flicker between green and red. A Twist should be fully charged within an hour or so if it's a 650mah, if it's higher, than it takes about two hours to fully charge. My wife's eGo-T
mod takes almost 6 hours to fully charge!
If you are leaving it on the charger for hours and hours,and the led is still red, you might try to clean the charger
threads with a q-tip (unplug it first) and some rubbing alcohol and do the same on the
threaded end of your Twist as well. Sometimes the ends being dirty won't let the charger work properly.