I was doing an order for some Bolt LiPo’s from HobbyKing and saw the “Turnigy® Fire Retardant LiPoly Battery Bag (Zippered) (200x155x95mm) (1pc) (US Warehouse)” for $3.55. It didn’t affect the shipping or anything so I figured why not. I have a lot of the standard LiPo bag’s from HobbyKing (like this) and they are garbage, the stitches fall apart on the hook/loop connection. The lining falls apart. This thing is quality. I’ve never had one of the $20-30 bags from any company but for the price this thing is great. The material seems very strong, the stitching on mine looks great. Honestly for $3.55 I think you should include one of these in every order! Wish I bought more…

Edit: One last thing, I can’t comment if it actually stops the spread of a fire or not, nor am I willing to test that feature. I would trust it a lot more than some of the other bags I’ve seen.  My charging setup is awesome and I only use this for storage / moving them.