Colorfly is a sister company with ChyiFeng. ALL Colorfly products are manufactured under ISO9001 certification. We own all kinds of certification such as CE, UL, IEC62133, IP67, UN38.3 and others to be available upon request. Each of battery packs will be passing sever QC control to come out a report accordingly. We have strong experience in R&D over 20 years. In addition to ordinary battery for Scanner, Printer, Phone, we're also capable in IC decoding especially in OEM/ODM project. Please feel free to contact us.