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What can be pulling my battery down

Tiny
SISSIE789
  • MEMBER
  • 1995 CHEVROLET CAVALIER
My car will not hold a charge more then 5 hrs if you dont crank it every 2 hrs we had altinater checked it is good we thought it was the radio and speekers we unhooked them and it still went down new battery it is only holding about 11 can you tell me something that might be pulling my battery down
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Thursday, June 21st, 2012 AT 11:26 PM

2 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
It could be the alternator with a bad diode, a light remaining on that you cannot see, any other accessory pulling down the battery. Also, have the battery load tested to verify it is not sulphates.

Roy
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Thursday, June 21st, 2012 AT 11:29 PM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
THIS POST MIGHT ASSIST YOU IN FINDING YOUR PROBLEM

https://www.2carpros.com/questions/1999-mercury-sable-much-would-cost-battery-kill-switch-installed-inside-car-cabin

AS FAR AS 5 HOURS OF OPERATION

CHARGE THE BATTERY---SNATCH ALL THE WIRES OFF OF THE ALTERNATOR

LET IT SIT OVERNIGHT

ATTEMPT A CRANK-UP NEXT MORNING---IF IT CRANKS JUST FINE, MOST LIKELY, IT IS THE ALTERNATOR AS ASEMaster6371 SUGGESTED

IF NOT, HAPPY HUNTING!

KEEP US POSTED ON PROGRESS
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Friday, June 22nd, 2012 AT 2:01 AM

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