*USB Type-C port *Compatible with 3.6/3.7V Li-ion and 1.2V Ni-MH batteries *Can charge protected 21700 batteries *QC3.0 fast charge, max 3A for a single slot *Control charging current by yourself (0.25A to 3A) *Battery real capacity test and storage function *Revive most of over-discharged batteries *Safe charging with multiple protections
