It's not popular advice, but batteries are batteries. There are many more items on the truck that will take more consideration and diligence. Buy the cheapest batteries that meet the spec, and save your money for other repairs or upgrades where it matters more.
You dont know powerstrokes.
The glow plugs alone will draw upwards of 18-20 amps each. There are eight of them.
Starter can draw up to 630amps during cold start.
Add that up with a minimum voltage and minimum RPM for the EEC to fire the injectors.....
There is a reason the truck comes from the factory with TWO 900+CCA batteries. And suggusting to skimp on batteries on these trucks is bad, bad advice.
What makes one battery better than another?
What would YOU look for in materials, chemistry, etc?
Warranty is simply paying for assurance, not a sign that it is actually "better"
So how would you suggest shopping for a battery then? Asking the 16 year old parts guy at your local auto parts store (CARQUEST, AutoZone, NAPA, Pep Boys, et al)? Will he be able to answer ANY of those specs about plate construction or lead/acid refinement? No way. He'll tell you about warranties.
Seriously, there is very little difference between one lead acid battery and another....they all meet the specs they list (XXX CCA @ X degrees) and they all have warranties. You don't always get what you pay for. It's kinda like a 10mm open end wrench. I can buy a drop-forged chrome vanadium wrench from Harbor Freight for a buck or two, or pay Craftsman five times more, or pay my Snap On guy twenty times that. They will all do the job. The Snap On guy visits me every week, replaces broken tools without question, and makes it easy. What $$$ value do you assign to that? For me it's zero.
When you're on a high-school kid's budget (the OP), suggesting Snap On tools or "The World's Best Battery" is probably bad advice. He'll need money for other things on the truck.
Update! Got batteries and glow plugs today, spent a total of 280 on batteries and 40 on glow plugs because somebody needed them off their shelf fast always nice when things are cheap. They're AC Delco's, so I'm hoping they'll do the job well.
Should I be replacing the battery clamps with something different/better than stock? I've seen clamps somewhere that had a nice terminal on top for a jumper cable to latch on easily, I don't really think I NEED them but are they a significant enough improvement to be worth the money? For reference, the stock clamps aren't corroded or anything. Maybe wait until I've got bigger-deal things fully sorted?
Thanks again guys. Should be able to drive my big loud rusty yard ornament around tomorrow :coffeedrink::smiley_drive: