... properties, not easy to rust.3.Safety and stability: Hi-tech lithium-ion.QCFirst, our QC will do the overcharge ... 2005, specializes in R&D, manufacturing and marketing of lithium ion battery, polymer lithium ion battery, portable mobile power charger since ... established in 2005, integrates R&D, production and sales of lithium ion battery and LiFePO4 battery. Our factory is located in Shenzhen ...