My Sound Sport Free battery case will charge the headphones when it is connected to the power source but will not charge them when it is not connected to the power source. I called the Bose helpline and was told the battery must be damaged or defective. I was also told the case should not be left connected to the power for extended periods as this damages the battery (if true it's a pity this is not made clear when you buy the product). They are only 18 months old so it is disappointing to have this problem.
I was wondering if anyone had experienced anything similar and if so how they rectified the problem?