Hey guys. So I picked up my thunderbolt yesterday and I'm loving it. I plugged it in and woke up this morning. After it fully charged while on I decided to turn it off and see if I still had a green light. I turn it off, and sure enough, it went to orange once it powered down. It'll take awhile to determine if it actually makes a difference or not, but if its anything like the incredible, I'm sure it will. Just wanted to let you all know, try and get every last ounce outta that battery.