Amazing tech, super cheap. 4.5Ah 22.6V pack, converts down to usb-c ranges with absurd efficiency, 24v->120vac inverters are awesome. Packs are so cheap. High power ones can fully discharge in under a minute, which is 6.5kW output, absurd. But my heavens these things are just terrifying. I occasionally use two for a short-range electric skateboard & am shocked nothing has yet exploded or caught on fire. They're more durable than I expect but there is so much energy here so unprotected. And I as someone who watches the internal resistance change over time- I know for real these things age, a lot over time, and eventually some might well become quite unhappy monsters.
But if I had lifepo4 packs, the only thing catching on fire would be whatever the pack was powering. Lifepo4 is amazing. Drive nails into it, set it on fire, whatever. Great cycle count too.