The charger output write 5v-4a belongs to the flash, the general charger between 1 and 2A, 4A is a very fast flash!
5A and 4A are actually the size of the current flow, and the charger of 5A is faster than the charging time of 4A.
However, the higher the charging current, the more dangerous it is to use a charged phone, especially when talking while charging.
Do not use this charger while charging a mobile phone, it is too dangerous.
The letter on the general OPPO flash charge data line is vooc, which means the flash developed by oppo itself, and its name is vooc.
2. There will be a letter identification at the end of the charging cable network to represent the supplier (the supplier identification has F, L, E, and none), which was produced before February 2015.