Older cell phone/laptop lithium is different technology than LiFePo4 in automotive applications, lithium has come a LONG way and there is quite a few variants of it. We use lithium in race applications and exotic applications, really helps with weight as some of these European cars ship with 50-60-70lb batteries, swap out for 5-10lb and off we go! The issue with lithium for our trucks, is sometimes the lithium needs to warm up before you can actually crank and start in the dead cold. If it is -10/-15c outside, likely you will have the leave the headlights running on the truck for 2-3 minutes to warm up the lithium cells enough to turn the monster over in the cold. They are working on some with built in heaters, or timers, already have voltage protection circuits to shut off auto when voltage is low, but the weight savings isn't worth it in a 9000lb truck we need to start every time we get in it.
I went Dual Interstate MTP's