iPod shuffle doesn’t seem to work and isn’t recognised by a Mac

iPod Nano 2nd Gen will work whilst connected to a docking station but won’t hold charge and the backlight doesn’t appear to work even thought it is turned on in the settings

iPod Nano 3rd Gen doesn’t hold charge but when connected it will power up and turn on but it repeats the cycle of powering up a few times then it will let you scroll through settings etc.

iPod Nano 5th Gen. works when when connected to a docking station or charger but doesn’t hold charge. Video camera works on it too.

I will throw in one new charger for nanos ( 1 between them all not for each one)
And I send the jack to USB for the Shuffle.

Items are sold as spares and repairs and sold as seen.

Thanks for looking.