Fireproof E-bike LiPo Battery safe storage bag is a convenient way of safeguarding your Lipo batteries during charging, Once the battery is short-circuited, it will immediately generate high temperature and spontaneously ignite. The double-sealed and zipper design keeps the inside of the fire bag in an oxygen-depleted state, and the fire goes out naturally. Since it is a round charging port with a Diameter of 3 cm on the side, which makes loading more convenient and safer