I normally charge my VX-170 in the VAC-370 rapid charger, but this time I decided to use the standard overnight charger that it came with. It had been well over 10 hours and the red light was still on. When I unplugged the charger the radio said about 9.0v, so I left it alone. I'm going to discharge the battery and try it again when it's dead, but has anyone else had this problem? I thought the LED was supposed to turn green when it's done charging.