Chosen Solution
Whenever I plug my ipod into a wall outlet over night I often waken up to find that it’s either not charged or is just dead. It displays the charging icon and everything but it just doesn’t charge. I would assume it was a battery issue but it seems to charge just fine off of devices it can connect to such as my laptop or TV. I remember reading somewhere this is because the new plugs are desinged different and don’t work older ipod is that true?
There is a possibility that you have a bad tristar ic. It controls charging and data transfer. It can be damaged by using an aftermarket charging cable that isn’t MFI certified. They can cause voltage spikes and damage the tristar. I would try a MFI Certified charging cable and 110v adapter and see if the will take care of it. I would also recommend taking it to a repair shop and having the tristar checked.