Canon R5 can use LP-E6N/E6NH, and RP can also use LP-E17 third-party full decoding batteries to realize USB charging (but not recommended). In principle, C-port charger/mobile power supply and C-C data cable should be used. Some A-port mobile phone charging heads with magic modified PD protocol and A-C data cables can also realize USB charging. USB charging has almost no requirements for voltage and current.