Spreadtrum SFCP

SFCP is a fast charging protocol introduced by Spreadtrum in 2016. It theoretically supports variable voltage in the 5-20V range. The protocol never became widely adopted and is supported by only a small number of devices. For example, the Sharge 100W charger supports SFCP at 5V, 9V, and 12V.

SFCP is unrelated to Huawei FCP and SCP despite the similar name. The KM003C tester can detect SFCP. On this site, the protocol was detected in tests of the UGREEN Nexode 200W X764 charger, the XY-PDS100 adapter (5V, 9V, 12V), and the SW3518P and SW2303 modules; SlimQ M0002 is advertised by the manufacturer as supporting SFCP, but the test did not detect it. SFCP support is also found in charging-port controllers, such as IP2707 (5V, 9V, 12V).