Battery goes dead

[69MyWay]

This is the second time.

On our 2000 model, the battery has twice now been fine one minute, and stone dead the next.

The last time it did this, I took it out and had it tested. It was fine. I put it back in, charged up, and it has gone for about a year now.

Yesterday, it happened again. We had just used the car the night before and all was fine. The next day, it was clicking and making strange noises inside (not the starter) when she tried to start it, then it just went down.

I disconnected the battery and charged it back up. It appears to be fine now.

How strange?

 

[FLIR_man]

It sounds like you may have a bad ground, I would check the ground cable between the chassis and battery.

happy driving, save the wave. :cool

Gary

 

[c4c5specialist]

HI there,
Check out your main grounds for the battery system first.
http://www.photohost.org/gallery/showphoto.php?photo=1533&password=&sort=7&thecat=658
#9 is critical.
Also, you may want to fill us in if there is any power components that seem to not be working correctly.
Allthebest, c4c5

 

[singledad_9]

69,

My delco died. I replaced with a yellow top and have no problems. Me thinks that mine was a bad cell or two.

Mike

 

[69MyWay]

I printed that ground schematic. Looks like a quick repair. I will do it this weekend.

What is a yellow top battery?

The green eye does not glow green in this battery, but I have had it tested, and it is showing 100% proper capacity.

 

[singledad_9]

Sorry 'bout that 69.

I got an ultima. it is a little smaller and seemed a little lighter. The cold cranking power is up there and it hopefully will never leak. I believe that it is a solid state.

BTW, how much juice is the car using when the key is pulled.

Mike

 

[69MyWay]

BTW, how much juice is the car using when the key is pulled.

Mike

Those dry cell batteries are cool.

I have not tested to see what it is using.

The funny thing is, my 90 Vette will go dead fairly quick when not being driven. I keep a 2 amp trickle on it all the time now so it is ready when I am. I have yet to test it out to see what is drawing. I know it is not the glove box light, underhood light, or any other obvious item.

It would just be my luck both are having the same problem!

 

[c4c5specialist]

Hi there,
Corvette engineering specifications dictate a car should be able to stand 21 days with the battery connected without going dead.
The GM battery tester is a more accurate diagnostic tool.
There is also a GM bulletin on battery testing and charging system diagnosis.
I would suggest that there may be other issues not addressed here.
BUT, IT CAN BE FIXED.
Allthebest, c4c5

 

[lt4 gs]

69,

My delco died. I replaced with a yellow top and have no problems. Me thinks that mine was a bad cell or two.

Mike

Yesterday I asked what a yellow top was for a reason........so I'll try it again.....What is a yellow top??

 

[c4c5specialist]

Yesterday I asked what a yellow top was for a reason........so I'll try it again.....What is a yellow top??

Hi there,
This is a acid/gel cell battery, made by Optima.
While this is a very good battery, I simply install an AGM from ACDelco. AGM is absorbant glass mat.
75P-7yr is the number, and will cost about $149.
However, cold cranking amps are increased and will fit in either c3-c4-c5.
These have been much more reliable than standard lead/acid batteries.
Just remember, NO BATTERY can withstand a parasitic drain forever.
Correct diagnosis and repair of the condition is critical to battery life.
Allthebest, c4c5

 

[lt4 gs]

Hi there,
This is a acid/gel cell battery, made by Optima.
While this is a very good battery, I simply install an AGM from ACDelco. AGM is absorbant glass mat.
75P-7yr is the number, and will cost about $149.
However, cold cranking amps are increased and will fit in either c3-c4-c5.
These have been much more reliable than standard lead/acid batteries.
Just remember, NO BATTERY can withstand a parasitic drain forever.
Correct diagnosis and repair of the condition is critical to battery life.
Allthebest, c4c5

Is this yellow top optima also from Interstate Battery??

 

[c4c5specialist]

Is this yellow top optima also from Interstate Battery??

I do not know for sure.
c4c5

 

[singledad_9]

69,

Optima is owned by Johnson Controls. I do not think that they are affiliated with Interstate. Here is their web site: http://www.optimabatteries.com/index.asp

Mike

 

[lt4 gs]

ok, thanks..I was just curious how the deep cycle yellow top worked out for you. I had one for a year and couldn't keep it charged. I replaced it with their Optima red top.....and now everything is just peachy. I gave the yellow top to my neighbor for his trolling motor and it is doing just fine. This was my experience.