13.8V 30A Adjustable Linear DC Power Supply

Stable 13.8V DC power for automotive, radio, and bench use.

This 13.8V 30A adjustable linear DC power supply is designed for applications that demand clean, stable power. With an adjustable output from 9-15V DC and a fixed 13.8V setting, it supports a wide range of 12V systems including communication equipment, automotive electronics, and test bench setups. Linear regulation and low ripple (<10mV RMS) help protect sensitive circuits from interference and noise.

Powered from a 230V AC / 50Hz mains supply, this unit delivers up to 30A maximum output current, suitable for high-current loads such as transceivers, amplifiers, and in-vehicle electronics. The LCD digital instrumentation clearly displays voltage and current, allowing precise monitoring during testing, charging, or continuous operation. Forced-air cooling with an integrated fan maintains stable operating temperatures under sustained load.

Why It's a Smart Choice

• Clean, stable DC output - Linear design with <10mV RMS ripple minimizes noise for radios, communication gear, and sensitive electronics.
• Adjustable 9-15V with 13.8V focus - Ideal for 12V systems; fine-tune voltage for testing, diagnostics, or specific equipment requirements.
• High current capacity - Up to 30A output supports transceivers, mobile radio bases, automotive ECUs, LED loads, and workshop tools.

FAQ

Q: What input power does this supply require?
A: It operates from a 230V AC, 50Hz mains outlet.

Q: Is the output voltage adjustable?
A: Yes. The output can be adjusted from 9V to 15V DC, with operation optimized around 13.8V for 12V systems.

Q: Can it power amateur radio or communication equipment?
A: Yes. Its low ripple and stable DC output make it well suited for radios, repeaters, and other communication devices.

Q: Is this suitable for automotive diagnostics?
A: Yes. It can be used to power, test, and troubleshoot 12V automotive electronic modules and accessories on the bench.

Q: What is included in the package?
A: The package includes the power supply unit, a power cord, and a user manual in a protective packing box.