After I used tryed to charge my jump start battery in my car using a 12v plug, the car no longer charges my car battery.
Did my alternator died out?
When I used the battery on another car it worked fine.
Is it bad for a car to charge a jump start battery while driving?
2007-08-23 12:27:13 · 4 answers · asked by Luby 5 in Cars & Transportation ➔ Maintenance & Repairs
** I didn't ahve a charger to charge it in my house so i tryed in the car.
2007-08-23 12:29:41 · update #1
I also need help findign this on forums
2007-08-23 12:32:46 · update #2
I don't quite understand what you mean by starting your car with a 12 volt plug. Generally speaking battery chargers are rated by regulated amps not volts. If you jump started your car with another 12 V source such as another battery no damage should have have been done to your car's alternator.
The only thing you can do now is test your alternator with the car running with a volt meter across the battery terminals. It should read a minimum of 13.5-14.0 volts. If not, a new or rebuilt alternator is in order.
2007-08-23 12:47:02 · answer #1 · answered by Country Boy 7 · 1⤊ 0⤋
It's never a good idea to use the car's alternator to charge a dead battery. It puts the alternator into "full" capacity condition for a long period and that fries the electronics. They're not built for that kind of long term load. Next time use a battery charger instead.
Rick
I'm a retired ASE Master/L-1 Technician. I still keep current with the latest automotive technology. Visit my blog for cool articles and TSB's: http://free-auto-repair-advice.blogspot.com
2007-08-23 12:54:33 · answer #2 · answered by Anonymous · 1⤊ 0⤋
The alternator must have died before you charged the battery or else you wouldn't have needed to charge it at all ?
2007-08-23 12:34:57 · answer #3 · answered by Anonymous · 0⤊ 0⤋
no way will charging 2 batteries damage your alternator
unless you connect it the wreong way round of course!
2007-08-23 12:36:55 · answer #4 · answered by andy t 6 · 0⤊ 0⤋