Please note that this is an important affirmation, Please consider carefully before purchasing! We designed FLASLD lipo bag to control the fire in its early stages, slowing down the spread of the flames and giving you more time to deal with the sudden state of spontaneous battery combustion. Since spontaneous battery combustion requires little or no oxygen to quickly raise the flame temperature to over 1,000 degrees Celsius, the FLASLD bag can only control battery fire for a short period of time, and you need to take action as soon as possible to To control the fire, I suggest you to store the battery in an open and no flammable place to reduce the risk! As a professional supplier of fireproofing materials, we are constantly exploring how to deal with spontaneous combustion of batteries, it is clear that the battery brings us convenience but also brings hidden dangers, the energy of the battery is so huge, the strong car shell can not withstand the power of spontaneous combustion of batteries, in how to deal with the issue of battery safety we still have a long way to go. Purchasing FLASLD battery bag does not mean it is absolutely safe, we do not want to mislead our customers and this statement means that we cannot cover the consequences of spontaneous battery combustion for you.