HEJ is an innovative enterprise specialized in lithium battery and energy storage system since 2012, HEJ combines research , design and production all in one providing OEM and ODM service from R&D dept to production process including BMS designing electrical system, battery module to finished battery packs tesing.
our mainly product Lithium battery , Sodium ion battery , LTO battery , Container battery, power wall battery, solar energy system, portable power station, stackable battery and inverter.
It is widely exported to more than 100 countries.
The company adheres to the principle of customer first and sincere cooperation. The business philosophy of relying on excellent quality to survive and relying on honesty for development! Recognized by a wide range of customers and friends worldwide! Our company will serve you wholeheartedly and welcome your cooperation!