Is anyone else experiencing an incredibly short battery life with the new GE Supra ActiveKEY? On a hot day of showings my key barely makes it through the day and if you leave it unplugged for a few days it completely drains itself. I don't want to have to buy the car charger and spend even more money, but it looks like that may be the only solution.

I didn't really like the old key because you had to synch it every night for an update, but I'd give anything to have it back!!