I just got my Inspire 1 out for a flight its been a while since she has been in the air. MY 4 TB47's have been in storage for well over 3 months. They are not new batteries and have worked well for years I tried discharging them well below storage and recharging before the flight but the batteries are only good for about 6 minutes. Most have 40 to 60 charges but 6 minutes is disappointing to say the least. Is it possible to bring them back somehow? Any thoughts?