Though they are sort of ubiquitous in many devices now, mostly due to ampacity and other ratings, they are pretty dangerous devices, a danger that basically doesn't exist with AGM or lead acid. The danger of lithium batteries is why they are restricted in air shipments; which is why some Samsung phones have exploded or caught fire and similar tales of woe. I've seen first hand the result of exploding lithium batteries, years ago; it was a C-cell size built and sealed for a test and ripped apart the pressure cooker it was built into and severely damaged the blast hood this setup was placed in. While many safety issues with them were solved they do remain a bit of a hazard which is why there are restrictions on them.
Save your money Jordan--get a sealed AGM for your old Pagoda. That's about as state as the art as you should consider for an old car.