The letters f and l on the OPPO flash data line are the identification of the supplier, and different suppliers have different letters. The supplier identification is F, L, E, and none. The flash charge data line produced before February 2015 has no letter identification of the supplier.
VOOC flash charge is the world's first mass-produced commercial fast charge scheme, compared with other fast charge schemes, the technical threshold is high, VOOC flash charge requires a customized adapter and battery. OPPO has customized special adapters, batteries, data cables, circuits, interfaces, and has deeply developed intelligent all-end five-level protection technology to improve security.
VOOC flash charge is a fast charging technology independently developed by OPPO, and has 18 patents, obtained a number of authoritative certifications including Swiss IEC, increased the fastest charging speed by 4 times, and has intelligent full-end five-level protection.
He has a vo oc flash charge logo on the main, representing that this is OPPO's flash charge protocol