Won't charge - get "Charging Deferred" message

SanDisk Clip Jam won't turn on unless plugged in. Can listen to it then or can plug into computer and manipulate files, but if unplug from cable it will turn off. If I then try to turn on it will say "low battery - Please recharge." Then, when I plug it in again I get screen reading "Charging Deferred," then whatever screen it was on. Can manipulate and listen, but sort of defeats the purpose of a small portable device.

Any ideas? No reset pathways have worked so far, i.e., holding Power/Select button for any amount of time or holding that button together with Back button for any amount of time.