Lithium batteries

Maybe you should take your own advice

The specs list their battery as only 10AH, CCA at a paltry 140, and MAXIMUM CHARGE RATE at only 15A and recommended charger only 5A

That thing is a toy. It is not going start much of anything in cold weather.
??? Take my own advice? ??? Not sure which battery you are referring to. Certainly not the one I’m running. All I’m saying is to research, read the manual and do as it instructs. Hard to go wrong.