LJY Energy Advantage:most R&D colleague was from BYD,CATL,leading battery companies in China,we have rich experiences(5 years) in battery desingn,electronic ,test and application,we can provide ODM,OEM produce.most our customers is Battery distributors, wholesalers, and energy storage installers around the world,They gave us a high rating,in product and professional service.our product most apply for home energy storage,RV,Marine,solar energy storage,Solar led light,low speed vehicle etc.some of them is lead-acid replacement,Compared with it, it has the advantages of long life and light weight.