Duralast Gold battery died a couple of days ago, so got a new battery yesterday. Driving around last Friday, I was getting slow engine starts. So on Saturday, hooked up the charger/desulfanator...left it on all night and everything looked good the next morning at 12.7V...then a little while later on Sunday, tested with my multimeter and was reading 10.4V. Then Monday, same 10.4V reading, confirming that one of the cells had failed. Then hooked up the charger again for giggles and it displayed a bad battery and refused to charge it. Tried starting the car...nothing. Checked for parasitic draws...none. But the headlights still worked with car off...but they're LED's, so very little battery power needed.
Always used Duralast Gold for many years, but the best I could get out of them in Vegas was 3-3.5 years...just after the warranty expires. About 2 years ago, learned & read about desulfenating batteries, so bought a unit and started desulfenating & charging the current Gold then, when it was already 3.5 years old...and was able to extend the 3-year lifespan to 5.5 years before it took a dump a couple of days ago.
It's a win, since these batteries are now $210.
But this time went with a Walmart EverStart Maxx with a 3-year warranty. From everything I've read, they're excellent batteries and made by the same company that makes the Duralast Gold...but the EverStart Maxx batteries are only $140.
$210 vs. $140 for basically the same battery with a different brand label...sold!
Hefted my Duralast over to Wallyworld for the core and bought the EverStart.
In Vegas, it just doesn't matter how good a battery you buy...and I've tried several top-end batteries in all the years I've owned cars in Vegas...the summer heat just murders them prematurely and limits their lifespan, even when garaged. Even back years ago, when Duralast Golds had a 5-year warranty and advertised 7-8-year lifespans...3 years was the best you could get out of them, but at least they would pro-rate them back then. Now, most high-end batteries, regardless of brand, are 3-year free replacement warranties and that's it.
Anyway...did the usual prep work for the new battery, installed it...and The Car fired right up.
Engine off - Batt measured 12.7V+
Engine on – Batt measured about 14.5V
Engine on – Alternator output measured 14.6V
All looks good now.
Vroom-vroom
