If a diesel uses 2 batteries, each with 600 CCA's, that's 1200 amps. My XP-10, which is failing, produces 600. That'll start any gas engine but what does it do with any of the full sized diesel pickups?
“In a time of deceit telling the truth is a revolutionary act.” ― George Orwell
It's not over when you lose. It's over when you quit.
That does look like a horse. However, I'm looking for one that will fit under my pickup seat. I need some way to carry it out of the way.
I saw you wanted one smaller than a car battery so thought it might be 'tweener enough to work. One thing I noted on this one is an operating temperature minimum of -28F. The more common Li-ion types are listed at -4F.
