When a company locks you into a proprietary charger, you'd at least expect it to work well... Well, this one does NOT. Like many of you, we got a lemon. Charger light acts like it is charging, but it isn't. As such, it's only real value is that of a paper weight... have email into VTech... we'll see what happens. In the interim, I'd suggest just getting the 9V converter and power the thing with a plug when possible. Many of you already know you can buy an inexpensive inverter for your vehicle and simply power this (and other electronics) from the 12V in your car. And let's hope VTech fixes the design flaw going forward because this thing is Great in Theory, but as many of you and I know first hand, in practice this thing JUST DOESN'T WORK... wish it wasn't so...