As it turns out, it was the charger I have at home. It's not the original charger. But the car charger that comes with it worked like a charm! Just need to order the original wall charger off amazon now. Thanks for all your input!
I just got a B250-XT off of eBay last week. Got it, worked great out of the box. Until yesterday, started giving me the infamous Blue Parrott low battery beep indicator. Got home and went to charge it, it's showing to have a full charge when you plug the charger into it. So I just left it...