Mad Maxx
See, what had happened was...
Don't they say that once AC Delco batts go full dead, that they never recharge to full potential?........Or is that an "Old wives tale??"
I'd say with any "Wet" Battery, that's True.
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Don't they say that once AC Delco batts go full dead, that they never recharge to full potential?........Or is that an "Old wives tale??"
I haven't had the best success with the red top optima's either. I killed two of them in my old truck, -they warranted it once but said they wouldn't do it twice. I have had good luck with the Autozone batteries too, -but never tried 'em on the 6.5....
When I bought my 6.5 truck, -one battery took a dump, -and not wanting to mismatch, -I bought two AC Delco's, -granted, not cheap (around $130 each), -but have never looked back. I have not had one single battery-related incident for well over 3-1/2 years.
I was so impressed with the AC Delco batteries in the 6.5, I bought one for my 4.0L Jeep. It cranks that 4.0 over with authority, -and the alternator doesn't seem to work nearly as hard.
For whatever it's worth, the battery that came out of the Jeep was a 4 year battery that was well over 6 years old, -and deep-cycled several times. It was a branded battery (I believe it had a Kneckt's Auto Parts sticker on it) -likely made by Exide or Johnson Controls.
Sometimes the less expensive generic-branded lead-acid wet cell units work great.
In reading all these posts on here, I'm beside myself. No disrespect intended, but it seems that guys are generally happy if they get 2-3 years out of a battery. If I only got 2-3 or even 5 years out of a battery, I'd take it back to where I bought it and throw it through their window in broad daylight. The Interstate Megatron in my wife's Suburban was 8 or 9 years old when I replaced it and the ONLY reason I replaced it was because I believe a weak alternator took its toll on the battery. I replaced the alternator at the same time. The Interstate Megatrons in my truck were in my K1500 gasser before I brought them over to my diesel. They're from early '01. My truck hasn't been driven for two weeks, but if I go out on Monday morning when it is supposed to be in the single digits, it will fire without fail. The Interstate in our old Grand Prix was about 5 years old and is still going today.
I compared prices last summer to the Walmart brand for our newer Grand Prix (not because I was tempted to buy it, but just out of curiosity). The Interstate I bought was $80 with an 84 month warranty. The Walmart brand was $84 with a 3 year maybe? I could really care less about the warranty when it comes to an Interstate, though. I know they last and don't fail me or my wife. I even had a used Interstate I took from a core deposit pile at a parts store I worked at in high school and ran it for about 3 years before I replaced it.
I'm not associated with Interstate in any way, but am just a believer in their products. In my opinion, there is NO other battery manufacturer.
I run nothing but Interstate once I found out I can get the blems for $35.00 a piece. I believe they are 850CCA. I've gotten 5-6 years out each set I've purchased for my trucks. We also run these in all of our equipment with no problems.
usually get 6-7 yrs out of a good batt. Probably less than you because of the temp extremes
"Hint" : At Autozone if they are that old, they are supposed to sell them as "used" for $34.99
I have lived in places where 6-7 years is normal. I have lived in places where Optima's outlast flooded cell technology. I now live in a place where almost nothing survives very long.
A battery is filled with corrosive acid. The lead plates are fragile. Deep discharging also causes damage (limits life) even in deep cycle cells. So heat makes the acid more reactive and high heat tends to evaporate the water out of them. Sulfation (wiring/alt/ lack of use problems) also kills the battery: in fact you can see this sometimes by looking as a swollen/bulging case sides of the battery. Vibration causes the fragile lead to separate and fall to the bottom of the cell. Any rough roads in your area? :skep: This is assuming the seals around the posts are able to survive and the battery case doesn't crack. (Failed seals or a crack will even make an AGM Optima leak. "Spillproof" is not 'leakproof'.) High heat ages the plastic and that will get you if the rest of the battery manages to make it somehow by adding lots of water etc.
Extreme heat shortens the life of the battery. Not only does high outside temps reduce the life, but the "AC" being turned on adds to under hood heat and even hotter under hood temps result from the cooling fan having to run. Rather than cooler no fan as airflow cools things enough and the air never gets to the fan kick on temps.
Putting batteries in the fridge for longer shelf life works.
Running a battery in the dessert means you are lucky to get over 2 years out of it. 3 year warranties mean you never buy a battery again - just exchange it every 2 years.
The passenger side battery on the 2008 Duramax is known to fail first due to the higher temps when towing. (And fan rotation throwing more heat there.) 88K and 1.5 years cooked my factory battery and it ran all over the entire USA and Canada. Some Duramax engines are known to be chronic over heaters: 'Ever seen washer fluid boil in the under hood bottle?' The battery is in the same high temp air...
Easy temperature conditions in mild climates, easy starting short crank time engine, constant use to prevent sulfation, never leaving the lights on, and low vibration give you long life. A cell can still short on you. But any other harsher conditions will shorten the life of a battery.
Extreme cold adds another issue of greater load to turn cold oil, more crank time needed, and less power from the cold battery. Freezing of the battery is also a factor...