Electrical question.
At night I turn off the power switch on the surge protector my modem and printer are on. That's also where I plug in my
batteries. If I have my Ralph-sanctioned Sony CycleEnergy Nimhs charging, the status light immediately turns off. But, if I have a USB adapter with a rapid charger plugged in, the light on both the adapter and the charger remain lit. At first I thought it was using up some residual power but I've waited as long as five minutes and the lights didn't go out. So, despite there being no power in the outlet, I have to unplug the chargers and remember to plug them in again in the morning.
Why does it do that? Just to make me nuts?