Battery Size
Cargo Master
Joined: Apr 2007
Posts: 2,659
Likes: 2
Battery life depends a lot on how the battery is used. I've had flooded lead acid batteries last 10 and 12 years in vehicles. AGM batteries are more suitable where there is frequent charge-discharge cycle that would ruin a flooded lead acid battery in just a year or two. But you can't add water to the AGM so if you live in a warm weather region then you might want a "maintenance" flooded lead acid battery that you can add water to keep it lasting longer.
Freshman User
Joined: May 2015
Posts: 36
Likes: 0
2009-2014, would be 5 years.
I've had batteries last 7-8 years before. Heck, my dad sells batteries that have 84 month warranties.
I will admit 5 years is getting a little old for a maintenance. On the flip side, I don't have any additional accesories, camper, etc... that would put extra draw on it.
The difference in how the truck strarts with the 65 series vs. the OE is night and day. For the extra $10 it's well worth it.
Cargo Master
Joined: Apr 2007
Posts: 2,659
Likes: 2
Stepping up in battery group size was a good idea. It is better to have a larger battery with a CCA rating mid-range in the scale of what is available than to have a smaller battery with the same CCA rating but at the top of the scale for what you can get in that size battery.
Tedster9 explained why in an earlier post when he talked about the construction of batteries and plate thickness.
Tedster9 explained why in an earlier post when he talked about the construction of batteries and plate thickness.
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
So have I but that's not the way to bet. The battery was easily six years old by the time a "2009" truck is sold is what I'm getting at. The date code will tell the tale.
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