SPONSORED LINKS

Battery I grabbed was backwards?

Tiny
MOOSEFBALL09
  • MEMBER
  • 2000 FORD F-150
  • V8
  • 4WD
  • AUTOMATIC
  • 124,000 MILES
I hooked a different battery up to my truck to start it while the origanal was charging and I didn't relize that thhe battery I grabbed was backwards. I accidently hooked the negative to the positive and the positive to the negative. Now the batteries won't hold a charge and we tested the altenator and it's good what could be wrong? Thanks!
SPONSORED LINKS
Saturday, December 8th, 2007 AT 1:31 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Welcome to 2carpros

You short circuited the battey-might also want to have the alternator load tested to make sure its putting out and inspect the fusible links.
Was this
answer
helpful?
Yes
No
Saturday, December 8th, 2007 AT 1:41 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,420 POSTS
When you connect the batteries backward it can short the battery out internally and it will need to be replaced. Here is a guide to help you fix anything else that might be wrong.

https://www.2carpros.com/articles/resolving-reverse-battery-connection-in-cars-a-step-by-step-repair-guide

Check out the images (below). Please let us know what happens.
Images (Click to make bigger)
Thumb
Thumb
Thumb
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, July 20th, 2024 AT 6:54 PM

Please login or register to post a reply.

Related Battery Backward Content

VIEW MORE

Sponsored links