This product is specifically designed for high temperature and enclosed application environments such as emergency lights, and is made of special materials and processes. It has the characteristics of wide temperature range, long cycle life, and fast charging. The operating environment temperature can range from minus 30 degrees Celsius to plus 55 degrees Celsius, especially suitable for emergency lights, lighting fixtures, enclosed mining equipment and instruments, and can be processed in various combinations according to user requirements, We provide similar models of high-temperature batteries, low-temperature batteries, high-power batteries, and low self-discharge batteries, with a wide range of models and varieties. Welcome to consult and choose.