With 3.3V you newer charge the LIR2032 as there is a diode in serie. With 5V you will destroy the LIR2032 as the voltage is to high. Spec: 4.2V max for LIR2032, but the charging is climbing to 4.5V on a Raspberry Pi Wonder which genius designed this module. Btw: If you are us a CR2032, it will probably explode. ;-)
Arrived safely and quickly thanks