Player has been working well for a while now but I was tired of charging it via the PC. I plugged in the Sansa to the new wall charger and after a few minutes of the "charging" animation, the battery icon turned grey and that was all she wrote. Sansa still works but the battery cannot be charged. I can still run it off the old USB cable but it does not charge the battery.Oddly enough, the battery isn't "dead". If I let the player power on after plugging it in and then unplugging it, the battery status just shows an empty grey battery but it has been playing music for over 30 mins now. This charger did something to the Sansa and it wasn't "charge the battery".