I have several devices running 18,650 and 21,700 li-ion batteries. Really great to get charged 4 batteries at once. During the night, even larger batteries, ie 5000 and 3500 mAh, will be charged. It is appreciated in this way when it gets dark when the use is high. For me, the charging speed is enough, as I spend the nights next to my wife.
No quick charger, but the batteries are full.