My Bosch 4 amp battery is showing a full charge when I put it on the charger but yet when I attach a tool it will not work, and yes I have tried different tools. When I actually click it into place on the charger the charger clicks as though everything is ok and then flashes permanent green which indicates fully charged. Is it goodbye to this battery or I have heard of things like put them in the freezer for 24 hours and then leave to come back to room temperature and then try charging again. TIA