At present, in the field of energy storage, lithium battery energy storage has the advantages of high energy density, long service life, green and environmental protection. Its position is unshakable, but there are also some drawbacks, such as high production cost, poor safety performance, and the risk of explosion. Therefore, the safety design of the thermal management system is crucial. Low temperature rise design has become an inevitable trend of connector development. Amass LC series battery connectors, IP65 waterproof performance and high and low temperature applicable environment of – 40 ℃ – 120 ℃ greatly reduce the damage of power connector pin in external application environment, effectively extending the service life of intelligent equipment.