Ok I've got a high Performance Tow rig '97 Dodge 12 Valve Cummins with about 500 HP & over the past 6-7 years have only used it for my Truck Camper.But now I've purchased a Travel Trailer that will allow me more use for my truck than just the Truck Camper.I'll drive here & there to work or for fun or to tow my New Trailer we just got.Or my boat to the lakes.What would you recommend?Its got dual Batteries under the hood that have been there for years & are constantly dead.Time to get new ones & wonder what you recommend?

Money no object, I'd reccomend Odyssey AGM. Have a pair going on 10 years old and a "new set" in the boat going on 5 years. The 10 year ones were in the boat for 5 years before going into the truck. But, you don't need anything special. Any decent flooded batteries will serve you for years too with proper charging, maintenance , no parasitic drains, etc.

Grit dog wrote:Money no object, I'd reccomend Odyssey AGM. Have a pair going on 10 years old and a "new set" in the boat going on 5 years. The 10 year ones were in the boat for 5 years before going into the truck. But, you don't need anything special. Any decent flooded batteries will serve you for years too with proper charging, maintenance , no parasitic drains, etc.Can you give me more details on price & why they are so great?Gel?Standard?These must be Strong Cranking Batteries for a hot rod Diesel that at time drps into very cold temps.

AMG would be a waste of money. They are primarily designed to not lose fluid if tilted on their side or upside down.Assuming you just need them to start the engine, any cheap battery of sufficient CCA will be fine.If your current batteries are always dead, check for stray current before replacing the batteries. The best batteries in the world will still go dead if you let them sit for a couple weeks with a 5-10amp constant draw. Did you add some aftermarket device that doesn't shut down when you pull the key?

valhalla360 wrote:AMG would be a waste of money.Not at all.While it is a personal decision, just not having to check the "water" level every 90 days or so is worth the difference for me. This is especially true if the location makes them hard to access.Then AGMs tend to last a LOT longer so in many cases they end up paying for themselves.But yes, he should try to figure out WHY the batteries constantly go dead while just sitting. It might be just self-discharge from being old and sulphated.

I've had really good luck with Costco batteries.Have dual 850's in the truck that have so far out performed and outlasted a couple sets of name brand batteries.Although as I understand it only a couple of companies in U.S/Canada that actually manufacture these batteries for everyone else.

Best Batteries for a diesel Tow rig? | Good Sam Community

Jim-Linda
Explorer II
Mar 19, 2018
Check out any big truck dealer got battery specials. Group 31's are common.
ScottG
Nomad
Mar 19, 2018
Jim-Linda wrote:
Check out any big truck dealer got battery specials. Group 31's are common.

I *think* the OP's truck uses group 27's.
ppine
Explorer II
Mar 19, 2018
Costco batteries are pretty good.
I get my truck batteries at Les Shwab.
theoldwizard1
Explorer II
Mar 19, 2018
shum02 wrote:
I've had really good luck with Costco batteries.

As long as they have the same Cold Craning Amps (CCA) there is no reason to spend more money.
Ron3rd
Explorer III
Mar 19, 2018
For those recommending Costco, our local Costco now sells Interstate batteries and exclusively. Decent battery
Grit_dog
Navigator
Mar 19, 2018
My only reason for recommendation of Odyssey is they have lasted longerthan other batteries. Ymmv
Idk what the CCA are but they light up the diesel at -30 not plugged in no problem.
Super_Dave
Explorer
Mar 19, 2018
I got my last batteries at Batteries & Bulbs. They even installed them for me in the parking lot so I didn't have to make a return trip for the core charge.
ivbinconned
Explorer II
Apr 02, 2018
I had an 06 Ram. Cables etc constantly corroding. Installed AGM. Problem solved.
Cummins12V98
Explorer III
Apr 02, 2018
ppine wrote:
Costco batteries are pretty good.
I get my truck batteries at Les Shwab.

Do you think they have better quality batteries?
Cummins12V98
Explorer III
Apr 02, 2018
Costco will serve you well. If traveling they are all around the Country!