2008 Grand Caravan SXT, 3.8

Was at the auto parts store this weekend getting my battery tested and the guy at the store said that the car has to be running for 15 minutes before the battery starts getting charged....any truth to that? Why the 15 minute wait?

Thanks!

 

Sounds like the guy at the parts store is full of it. If you doubt it, grab a volt meter and put it on the battery while the vehicle is off. Measure the voltage. Start the vehicle and measure it again....does the voltage go up? If so, it is being charged right away.

 

Jkeaton said it as well as any. It's crap.

 

Thanks to you both!