Hello, I sent an email last night on this but was just wondering if this is a known issue with the 510T batteries, I got the XL bundle in early November and last week they both just started blinking at random times (like when you need to charge them but they're fully charged already) and seems like they are getting weaker when I've only had them for about 2 months. I didn't think much of it when it started cause never seen this happen and thought was just some odd incident, but it's continued and I'm noticing I can't get much vapor at all, I have to suck pretty hard. It's like it shuts off mid vape while I'm still pressing it when it blinks so it's been pretty frustrating trying to vape. I would like to return and get new batteries but I noticed its only a 2 month warranty so I'm just trying to get in contact with someone before 2 month is up, since I don't know if the 2 month starts on order date or received date. And I will be going out of town from Jan 9th to the 11th so wanted to talk to someone about this issue.