I recent bought my chevy bolt and still dont studied it enought .
I had read in past that bolt can AC charge up to 32 Amps (7,4 kW) and also I have 32 Amps charger (Zencar, Type 1 J1772). But on bolt's display charging options exist only from 8 to 12 Amps changing. What I missed?
The 8 and 12 amp settings are only for L1 (120V) charging. People will sometimes plug into an existing 120V circuit with other outlets and devices on them, and the 8A setting will prevent the breaker tripping or possible safety issues if other devices are drawing power from the same circuit.
Those settings are ignored when using 240V to charge. The EVSE advertises it's capabilities (32A i.e.), and charger ( built into the car) will control the charge session. If your EVSE can only supply 16A, the charger will not draw more than that. If it can supply 32A (or more), the car will be able to charge at its fastest rate.