I just went through 4 sets of Energizer AAA batteries. It dies in about 2-3 days. I contacted support, and all they can do is replace everything. I spent like two days setting a bunch of stuff up on the Fire TV. So I just ordered another remote. When it arrives, I'll just package up the broken remote and return it for a refund. I hope the problem is on the remote side and not on the Fire TV itself somehow draining the remote. The remote was updated to the latest firmware, and it still drained the batteries. I paired the Fire TV with my Fire Stick remote, and apparently, the Fire Stick Remote doesn't have any firmware. I'm not an electrical engineer or anything, actually I am, but I'm guessing that the mic might be draining the battery. Our kids are loud and they make noise all freaking day. So the remote is probably trying to process all the gibberish from the kids all day long. I might just put some electrical tape to cover up the mic, and see if that makes a difference.