I want to clear something up about a lipo bag. Lipo bags are not flame proof, they are flame and heat resistant. As you can see in that picture, it burnt through the bag and still could have set a house on fire. Teh lipo bag is protection to give you just a little more time to get that battery out side where it can't do any damage. Just want to be clear that you still have to monitor the battery when it's in a lipo bag just like you would if it's out in the open.