ShenZhen Sinca is a leading manufacturer specializes in power bank for 10 years, with building size 3, 000 square meters, and 430 staff. Including 32 technicians and engineers, 48 quality control person. Now mobile phone battery can produce more than 1.5 million PCS, monthly production capacity of 2,000,000 PCS.We offer full range of power bank. We are able to offer a wide range of mobile phone battery charger, according to various specifications. Our products include battery packs, USB ...