Keep an eye on those skateboard batteries. I left a few of those charging and burned down the house. Get an ammo crate for them!
I also have a pretty great charger & charge gently, usually 1A on my 4.5Ah cells. Barely anything. And I monitor cell resistance closely to spot trouble ahead of time. That's key.
I feel pretty responsible here, but I also know I am playing with a dangerous dangerous scary scary thing. I still don't feel great about this. I charge while I'm home & leave my charge setup in the middle of open floor, away from flammable things. But oh I know it's still a risk. I should get a charge crate. Thanks. Sorry that happened to you. Terrifying.