Ok I feel that I need to post an update. After a rough start, this Provari has been chain vaped for the last 8+ hours and just now is telling me the battery is low! I am AMAZED! I have tried all sorts of APVs, including knock off VV devices. None of them have given me a regulated vape for this long while chain vaping. I am thoroughly impressed. If this keeps up I am pretty sure my wife will be hiding my debit card. Thanks Provape! BTW... the ProVape customer service replied to my initial email within 30 mins. I posted here as I was afraid they weren't in on a Saturday. The response time from them was very impressive. I am very thankful for a great device and a great company.