To exit low-current mode: Single press the power button.
This is straightforward, but the manual clarifies a few nuances. aukey pby37 manual
Press the once. The LED indicators will light up for approximately 30 seconds to show the remaining battery power: 4 LEDs lit : 75% – 100% capacity 3 LEDs lit : 50% – 75% capacity 2 LEDs lit : 25% – 50% capacity 1 LED lit : 5% – 25% capacity To exit low-current mode: Single press the power button
:
To achieve a full charge in approximately 2 hours , use a wall charger with at least 45W Power Delivery . aukey pby37 manual