Anyone Install Lithium ion Batteries? Results?

The primary advantages to Li batteries are their weight and capacity for their size. If I were to ever use them in my camper, I'd not leave them in, but remove them when not in there myself. I've used them at work and have had them catch on fire at least 50% of the time we used them. I think the technology is still too new and a bit dangerous for RVing right now.