The company keeps to the operation concept "scientific management, high quality and efficiency primacy, customer supreme for bms 500a, Bms For 18650 Battery, Li Ion 3s Bms, Bms 100a 4s,Battery And Bms. Honesty is our principle, professional operation is our work, service is our goal, and customers' satisfaction is our future! The product will supply to all over the world, such as Europe, America, Australia,British, Pretoria,Brasilia, Ottawa.We are looking forward to cooperating closely with you to our mutual benefits and top development. We guaranteed quality, if customers were not satisfied with the products' quality, you can return within 7days with their original states.