Better or best automotive batteries for my Overlander? Interstate, Odyssey, Optima, LiFePo, etc.

Sid Post

Observer
My dual 35-1400 Odyssey batteries in my Tacoma are 5 years old and need to be replaced.

Walmart AGM 4-year warranty batteries are ~$400 and are easily warranted nationwide. Intertate, Odyssey, and Optima batteries will run me ~$700. Lithium options seem to be available for ~$800, but I wonder about compatibility with my 12,000lb Warn winch loads in addition to basic charging, cold weather starts, and use with a 12Vdc vehicle fridge/chest plus lights and air compressor.

One random thought I had was to get Marine AGM batteries to handle low-voltage battery cycles better due to the accessories on my Tacoma, like the lights and fridge unit.

What are the recommendations from people who travel to really remote areas and travel internationally, where a Walmart warranty may not be possible, or a replacement LiFePo isn't an option either? Should I just opt for Walmart AGM batteries that can be matched easily with a dissimilar battery at some remote location?

TIA,
Sid
 
If you do it 'right', once you go to LiFePO4, you will never go back and you will probably never buy another battery either.
Cheers,
Peter
OKA196 motorhome
 
How many amps does your winch pull? I have a small Warn winch to raise the spare tire on my rear tire carrier. I would like to go lithium as well, but the one I looked at on Amazon can't supply to 200 amps the winch pulls. I will subscribe to see if a Li solution exists that I don't know about.
 
The ability to deliver amps is a function of the BMS rather that the LiFePO4 chemistry.
I am using a 4.5kg, 30Ah, 880A CCA LiFePO4 cranking battery for our 4L diesel, similar to these.
You should be able to put a couple of batteries in parallel to combine the maximum current.
Cheers,
Peter
OKA196 motorhome
 

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