I have a 1994 Z28 with a new

1. Starter
2. Alt
3. opt Battery Red-top
My car batt. seem to die over night I ck voltage during key off and the reading is around 0.08. At times the car seem to mk a clicking sound then starts or I have to jump it or use batt. charger to start it. the funny things is that if I drive the car for a few days it will start the next day but If I dont start the car for 2 or 3 days then I have to jump start it. Also the system charging is around 13.6 while running

I hope this massage mks since LOL

 

Is that 13.6 with accessories on? It really should be charging 14v+ even with a full accessory load.

 

How old is the Optima? Mine lasted 6 months.