Swaytronic LiPo Safe Case. The LiPo Safe Case from Swaytronic is the first case offering 99.9% protection against the spread of a battery fire. A game changer and the solution for the storage and transport of lithium batteries of all kinds. Safety First: What makes this case so special? Fire Protection Cushions: The use of special fire protection cushions significantly contains the battery fire shortly after it starts. The heat from the battery fire causes the material of the fire protection cushion to fuse with the lithium battery, suffocating it shortly after ignition. Pressure Relief Valve: A pressure builds up inside the case due to the fire. The built-in valve releases this pressure. Certification: The case is certified according to UN3480/81 and UN3090/91 and can be used for the transport or storage of intact or damaged lithium batteries.