Does anyone know what the code or number of the newer Delco battery that is suppose to not leak is? The one in my car is 3yrs old and leaking, but it has a 72 mo. warranty so if I can get the"newer"version for free or a little money I might go that route.If not I will get the red top. Thanks

 

75P-7YR

The 75P denoted the GSM type.

 

WOW!!!! How fast was that!!! Thanks

 

Even if you can get a replacement at a decent rate, I'd still recommend getting rid of it and going with the redtop. Though the Delco will occasionally give warning before dying (like resetting the DIC and posting a variety of error codes, including doing the dreaded column lock--if not bypassed), other times it goes like flipping a switch.

Mine was 3 years old, no leaks and gave warning. Fortunately, it was in the garage at the time it actually died and I was prepared. It's not worth the hassle for some to risk another battery that may do the same or worse when something that seems more reliable is so readily available.

Good luck with however you go.

 

GM went to an AC-Delco Absorbent Glass Mat (AGM) battery for the 2001 model year. It was the AC-Delco side post lead acid batteries prior to this that were having the leaking issues. Due to a high number of early failures with the AGM batteries, GM went to an AC-Delco top post lead acid battery for model year 2004. The following C5 Tech Tip speaks to the leakage issue and gives part numbers for the AC-Delco AGM batteries:

1997 - early 2001 Battery Acid Leakage Issue

Hope this helps.

 

Thanks guys. I went to the dealer today and they told me the pro rate would only be about $15.00 off the regular price so it now sits with an optima red top in it!

 

I just had an AC Delco 78DT-6YR battery installed. I liked the dual terminals and didn't have a chance to buy an Optima. Anyone know anything about this battery?

 

I've used AC Delco batteries in my 68 Corvette for 20 years and never had one leak. The leaking problem was, IMO, a stress issue that came about as a result of the cable placement. New Corvettes have top terminals, I believe, so it is unlikely that the leaking problem will reoccur in them or your new battery.

Regarding AGMs: My AGM is going on 4 years old and is still as strong as ever. I think the key to its long life is driving the C5 often and for long enough periods to keep it fully charged. This is probably true of every type of battery, but especially so with AC Delco AGMs.

 

damn, my battery is 5 years old

 

damn, My OEM battery is 5 years old, and still ticking.
Oh that tick is my piston slap not the battery, but the battery is still working

 

In September 2003, I noticed foam around the red cable that was attached to the OEM Delco batteryof my 2000 vert. I panic and immediately drove the car to my local dealership.
I was informed that battery acid was leaking from the positive cable and the terminal was broken off.
The dealer installed a new Delco 78H-6YR B ($95) and replaced the cable ($73.77) my total bill including labor was $363.49
Luckily, I did not leak on the computer. But, now, I'm worried that this may happen again.
Has anyone experienced any problems with the above battery by Delco? Or should I transfer this battery to my 99 Suburban? That by the way, after 5 years, still has its original Delco 78-6YR with no problems and going strong.
I wonder why battery leaks only occurs in their most expensive sports car.
Thanx for your time.

 

If it has the side terminals then I would replace it, as it is not leakproof and is more prone to leakage due to the cable placement. However, if it is the new top-terminal type, it is probably okay.

 

Batteries can leak on any car, it is just that some bozo decided to install the PCM and main engine wiring harness under the battery tray; therefore, if it does leak, the repair cost is extremely high.
I had a leaky factory battery in my '03 Jeep; replaced with a yellow top. I believe my leak was caused by some extreme off-roads I had been traveling and the vibration cracked the sides (again, I believe).
Basically what happens is one of two things. Excessive heat around the side posts, due to the electrical draw, causes the plastic to flex, creating a leak that finds a great path out the side posts and down the cables. Or, excessively torqued side post causes the case to crack; and the leak follows the same path. I guess I should mention one other condition that can cause this problem; a bolt longer than specified can create a crack inside the case where the bolt threads into the case. This is usually caused when someone adds an aftermarket cable adapter to connect an amplifier, or some other electrical device.
Gel type of absorbent glass mat batteries do not tend to leak. Also, the hotter the climate, the faster a battery will be destroyed. Many believe cold weather kills a battery, but cold weather will allow a battery to run down faster; while excessively hot weather will KILL a battery's cell; thus killing the battery.
Battery warranty for GM (and I would bet all the other manufacturers) is about 3 to 1 in excessively warm climates such as Southern FL, AZ, TX, etc.