I was using my 05 Precedent this week end and the Amber light flashed very brightly approx. every 30 sec., my battery are about 3 months old. The led battery indictor showed the batteries at 60% charged, with no loss of power. After charging for 7 hrs, and using it for about 1 1/2 hours the light did not return, but I assume there must be a problem. Any idea's? I did not have anything with me to check the voltage, but will go out this weekend with appropriate tools.