Last week, I started getting the Battery Saver Active notification on my DIC. Put it on a charger and noted that the battery ( 1st charge attempt) was at 64 % and would go no higher than 69% on an extended charge. After a long drive of about 40 miles, got alert again , hack would not work and later put it on charger and at that time it was at 42 % . Wondering if I have a alternator issue or battery just not holding a charge. Thoughts???