I charge at 6.2amps , b/c it is limited to half by the battery amps. It has 12.6amps and 6.2amps is max. It works for my ebike’s battery.
with this charher you can set different custom profiles. I have for 90$ , 100% , for 4amps and also fast @6.2.
In 40min . It charges 210wh at 6.2 !