A few times my Blazer has really cranked low before starting and the radio clock has reset itself to 12:00, especially in the early AM on cold nights if I don't have the park brake set and the exterior lights come on (I think that was an oversight on GM's part, the autolamps should have had a programmed delay while starting). Also a while back I had left my doors open for about a half hour while cleaning the interior and I had to jumpstart my Blazer. I didn't turn off the interior lamps with the dome override button but I don't think that should have run down the battery that low in that short of time. I've left the interior light on in my old car all night and it still started the next day.

The charge guage shows at least 14 volts while the engine is on so it's getting enough of a charge so I don't think it's an alternator problem.

I bought my blazer used and it was originally from Indiana so I'm guessing it went through quite a few harsh winters. It's the OEM battery and it was originally sold in late 2003 so it's over 4 years old by now.

Any thoughts?

 

got an autozone or advance nearby? they will test them for free!

 

Yeah. We've got about 3 Autozones here in town.

Hell, they have Autozones everywhere, they have them in Mexico.

 

Well, the verdict is in. The battery was shot. It wastesting so low that Autozone's battery tester said "recharge and test", and that was after driving there from work the other day. The testing drew enough voltage that I almost needed a jumpstart! Got a new battery installed at SAMS Club and now it's running great, no problems starting. [8D]

 

lol they have 1 autozone in all of seattle. and its in the ghetto area of town.
-Wes-

 

If you live near a sears store they have a new battery that i put in my 1993 chevy van.... It kicks *** when it starts... Go to sears if theres one near you and you`ll prob see the display I paid quite a bit for mine for my van but it was well worth it... Very high cranking amps...

 

IMO optima's are the best, I have put one in every vehicle I have ever had, I currently have a yellow top in my blaze and its awesome!!!

 

WERD! I am going on9 years with the Yellow top in my Z. Thing is just now starting to show some signs of trouble when the car has been parked for 2 weeks or more, but so far still cranks the car the first try everytime.