Smogbob, Do you use a usb cable from your computer to charge or a usb cable from a power adapter plugged into the wall? If it’s the latter what wall plug power adapter are you using?
Thx
Glenn
Any mains to usb adaptor will do. I have plugged GPS devices into all sorts of them, here and abroad; none has ever fried. Sometimes the device sees the supply as a computer; that doesn’t matter, it still charges.