Battery going flat, please help

2002 FIAT PUNTO
Avatar
LEMBEH1234
  • MEMBER
  • 1 POST
Dear Pro's,

Ive had an audio system installed in my car for over 2 years now with no problems. However this winter just gone, my battery went flat, I assumed it was dead so i just replaced it, but the same thing happened to the new one. My next thought was that it could be a drain... so I had someone check it out and they told me there was no dran when the car is off. So then i thought it could be the alternator.. Im not an expert but I used a voltmetre to check the battery voltage and this did not increase when i turned the car on and revved it, i also checked the input and output amps of the battery when the car was on and this was virtually the same at around 2 amps so I can only assume the battery is not charging.
However i was told that the alternator is definitely charging at its max voltage.
I am confused and need help as to what it could be.
Thanks
Apr 10, 2012 at 2:32 PM
Advertisement
Avatar
HMAC300
  • ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
most batteries only last about 4 yrs, charge it and have it tested to see ifit's any good. then have the charging system checked.
Apr 10, 2012 at 3:42 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.