Q3: What input voltage does the DC power supply support?

A: Most KUAIQU power supplies support wide voltage AC 110V/220V dual input, please check the nameplate parameter before use.

Q4: How to adjust voltage and current accurately?

A: Turn the voltage/current knob slowly; fine-tune knobs for precise adjustment. Set voltage first, then current according to load demand.

Q5: What is constant voltage (CV) mode?

A: Constant Voltage mode keeps output voltage stable, suitable for most electronic maintenance, charging and conventional power supply scenarios.

Q6: What is constant current (CC) mode?

A: Constant Current mode locks the output current, widely used for battery charging, LED testing and current-limiting protection.

Q7: Why does the current display keep jumping?

A: It is caused by unstable load contact or load circuit fluctuation. Check wire connection, terminal looseness and load quality.

Q8: Why does the power supply heat up quickly?

A: High load power, long-time full-load operation or blocked heat dissipation holes will cause heating. Keep ventilation and avoid long-term overload.

Q9: Will overcurrent damage my electronic equipment?

A: No. The power supply has built-in overcurrent protection. It will limit current or cut off output to protect the load and the machine.

Q10: Why does the fan make loud noise?

A: The fan speed changes with temperature. High temperature and high load will speed up the fan. Clean dust regularly to reduce noise.

Q11: How to judge whether the machine is in CC or CV mode?

A: Check the indicator light on the panel. CV light on = constant voltage; CC light on = constant current mode.

Q12: Can this power supply charge lithium batteries directly?

A: Not recommended for direct charging. Please match a dedicated charging module to prevent battery overcharge and safety risks.

Q13: How to store the power supply when not in use?

A: Turn off the power, unplug the power cord, clean the surface dust, and store in a dry, dust-free and ventilated environment.