Ronger which established in 2013,is a proffesional manufacturer and exporter, the founder has over 16 years experience in battery inductry. we focus on design and development of Lifepo4 battery,Lithium-ion battery and system,offer global technical support and shipment. Ronger equipped with advanced production and testing facilities,to supply valuable and high quality products. Covering an area of 10000 square meters, we have over 200 employees in management,development and production. There are...