Battery

2001 FORD ESCORT
132,000 MILES
Avatar
KGETZ
  • MEMBER
  • 104 POSTS
Is it true that when a car is running, the battery supplies the power to the car and the alternator recharges the battery as it drains?
Aug 2, 2012 at 5:50 PM
Advertisement
Avatar
KHLOW2008
  • CAR REPAIR CONTRIBUTOR
  • 41,814 POSTS
Not really that way. The alternator supplies whatever current is required and the battery acts as a backup. It also helps to stabilise the voltage though the voltage regulator is the main controller.
Aug 2, 2012 at 6:02 PM
Avatar
WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
The alternator feeds directly to the battery and reads battery demand to determine charging rate.
Aug 2, 2012 at 6:22 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.