Efest R4 Charger

For Better Charging we prefer to get Qc Adapter

https://www.thelbvapestore.com/products/efest-qc-3-0-usb-charger-adaptor-1pcs-pack

EFEST iMate R4 intelligent QC charger
3A speedy charge
shows info with a better visual effect easier to operate charges batteries faster:2X2A
can charge Li-ion and Ni-Mh batteries competitive price with a better performance
Hardware/software double protection can charge 20700/21700 batteries

SPECIFICATION:
Input:
DC: 5V/2A 9V/2A 12V/1.5A QC Mode:18W(MAX)
Output:
QC Mode: 4.2V mm 1X3A,2X2A,4X1A,4x0.5A
1.5V = 4X1A,4X0.5A

Standard Mode: 4.2V = 1X2A,2X1A,4X0.5A
1.5V= 2X1A,4X0.5A