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Battery

Tiny
KGETZ
  • MEMBER
  • 2001 FORD ESCORT
  • 132,000 MILES
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?
Thursday, August 2nd, 2012 AT 5:50 PM

2 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 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.
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Thursday, August 2nd, 2012 AT 6:02 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
The alternator feeds directly to the battery and reads battery demand to determine charging rate.
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Thursday, August 2nd, 2012 AT 6:22 PM

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