Luna sent me fire ******ant bag with my battery. Nice unit, custom fit to the battery. I would never put the battery inside the bag while charging, holds too much heat. Heat is the thing that causes battery fires.
Instead, I put the fire bag in the bottom of my 40 mm grenade ammo can and charge it outside. Keep a bucket of water near by just in case. The ammo can is excellent for storing the battery in the house during the winter months
40MM Used Ammo Cans | Ammo Can Man
