Battery Questions.....

[93tealstang]

Ok, so I've been toying around with MAF's for the past few weeks and between switching them, I've unhooked the negative post on my battery for about 15 minutes to reset the computer. First meter swap, everything seemed ok for about a week. A couple days ago, swapped another meter and reset the computer again and seemed fine until today. I went out to change my pulley's and after I was done I was ready to start up and go. I get in and have a dead battery. I got a jump and after it was running, took it out for a drive and the volt gauge was really fighting to stay up so ofcourse the battery is now dead again after being parked all day. My question is, did unhooking the battery those couple of times cause this? The battery is only about two years old and showed no sign of drain until I unhooked it recently. I had this problem before and couldn't believe that disconnecting it for so little time can completely drain it. How is this? It was 70 degrees out today, aren't battery's suppose to go dead in the winter?

 

[Shakerhood]

Batteries can die any time!

 

[93tealstang]

Care to explain? The batteries in my car always seem fine until I unhook them.

 

[5spd GT]

I have unhooked my battery SEVERAL times for various reasons and it always started up the same...many for different lengths of time, from 5 minutes to 25 days...and didn't have a problem

 

[TheUser]

do you have a charger? Maybe try charging it up? If not, we have a local battery shop that charges like $1-2 for a 1-hour "quick-charge".

 

[mjbtv]

Check your battery voltage. If it doesn't read 12.6 volts your battery is dead and needs to be recharged. Recharge it with a battery charger and not the vehicles charging system.

 

[Curse]

Thats pretty wierd, I would say take it to Autozone or some place where they do free battery checks. Your battery shouldn't have drained that fast. Did you leave it in the engine bay, or did you take it out and leave it on the floor?

 

[hllon4whls]

Unless you are damaging the post internally, I dont see any reason that this would harm the battery. The battery can fail at any time, but it sounds to me more like a bad connection somewhere.
Are your cables in good condition? Are they tight when you are ready to start the car? Are the terminals and posts clean?

 

[TrophyHead]

Is it an autozone battery?

Stay far away from those things I had a bunch of charging promblmes with the cheap autozone batteries.

Replaced it with a Interstate and that is keeping a charge no promblem.

 

[93tealstang]

The battery is from a local "battery warehouse" shop. It's supposed to be a "heavy duty" all weather battery. It was left in the engine bay when I unhooked it the whole time. It isn't a cheap battery from Autozone either. My friend told me the local shop I got it from "re-sells used battery's and just puts their name brand sticker on them." Anyone ever heard of doing this? Anyhow, I'll probably just go and replace it with an Ever-Start since I've had a few of those, and they seem to work really good.

 

[93gt1217]

if you've got some extra cash look into a gel cell battey, good investment for the money

 

[04sleeper]

Unless you are damaging the post internally, I dont see any reason that this would harm the battery. The battery can fail at any time, but it sounds to me more like a bad connection somewhere.
Are your cables in good condition? Are they tight when you are ready to start the car? Are the terminals and posts clean?

I think it might have been an existing problem that is just now showing its ugly face.

Double check all of your connections and cables. Also get your alternator tested.