Shenzhen HDT technology Co., LTD. Is specialized in Lithium-Ion battery, with professional R&D team, reliable production team and over 10 years experience in green energy filed. Our company provides qualified batteries for E-bike, batteries for device, LiFePO4 batteries. Quality is our life, with our advanced technology, workmanship and strict quality control, to make sure our batteries are quality with competitive price, for better after-sales servcie, we have after-sales in US and Germany, welcome to contact us for more details!