That looks impressive.
I am really interested in shaving off weight.
But...the fearful thought pops into my head...What kind of violent hot fire would that Li battery create if vibration causes its internal parts to short out?

My brother-in-law bought me an expensive Li battery jump starter for Christmas one year ago.
I am afraid of carrying it in the vehicle,
although I have pulled dud explosives out of boreholes, parachuted, landed a plane whose engine missfired and blew an exhaust manifold right through the engine cowling, worked on live 69 kV equipment, worked alone while “Fire Bossing coal mines, rafted down dozens of Class V+ rapids, etc, etc