Touchpad won't charge with dock, only with cord

I have 2 Touchpads that unintentionally the battery almost went completely dead. they would not charge with any of my Touchstone Docks, but I as able to carge them fully to 100 % with a cord. Now fully charged they still can’t be charged with any of my docks, only with cords. I s there something about letting the battery get almost completely dead, that makes it only chargeable with a cord, not a dock, even if it it has been fully 100% recharged?