How Long Does A Car Battery Last Without Alternator. It entirely depends on the capacity of the car battery. On older cars with carburetors and mechanical fuel pumps with no headlamps a fully charged battery might last for 6 hours of driving.
75 - 80 miles sounds pretty good. Some information in it may no longer be current. Ad Find Great Prices on Auto Batteries at Advance Auto Parts Today.
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A good alternator and can last well over a decade sometimes as long as 15 to 20 years. Ad Get Money Saving Offers Schedule Service At Your Local Quick Lane. Thats why batteries lose their charges as they sitThats what the alternator does it maintains the batterys charge and it produces extra juice to power the lights radio and all the other electrical gadgets in the car. How long will a car run without alternator.
