99 Acura TL - 2 batteries in 2.5 yrs

1999 ALL OTHER MAKES ALL OTHER MODELS
Avatar
AMRATLAL
  • MEMBER
  • 1 POST
My vehicle has gone through 2 batteries in the past 2.5 yrs. Took the car to the dealership and they tested the alternator and checked for a drain on the battery but found nothing.

Also checked with retailer I purchased battery from and confirmed correct battery for vehicle.

Anything else I can check?
Apr 21, 2007 at 7:11 PM
Advertisement
Avatar
BRUCE HUNT
  • ✓ASE Certified Mechanic
  • 3,754 POSTS
  • ASE Certified Mechanic
It is possible that the alternator is still bad. I say this because it is possible that the test showed that the alternator was charging. What they may not have tested or waited for was the ability of the voltage regulator to stop charging the battery. An over charged battery will fail pretty quickly as well.
Apr 23, 2007 at 3:46 PM
Avatar
LOSTINMARS
  • ✓ASE Certified Mechanic
  • 222 POSTS
  • ASE Certified Mechanic
was the alternator tested to see if its leaking any ac voltage into the system? if its a denso alternator, which iirc it is, then there's a good chance this is happening. this will fry a battery over time.
Apr 27, 2007 at 7:58 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
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.