Best 13.8 Volt Power Supply Options for Ham Radios and More
Choosing a reliable 13.8V power supply is essential for maintaining consistent performance in CB and HAM radios, scanners, and other DC-powered gear. The right unit should offer solid current capability, convenient connectivity, and sensible protections. Below, five 13.8V power supplies from Amazon are highlighted. Each entry covers core features, connectivity options, and how they fit typical hobbyist and professional setups. A concise buying guide follows to help compare options and select the best fit for your station or bench.
| Product | Output | Key Benefits |
|---|---|---|
| Jesverty SPS-1330 | 13.8V, up to 30A | Compact benchtop, screw terminals, cooling fan |
| Uniden 13.8V Replacement Adapter | 13.8V DC | Versatile compatibility, safety features |
| Naweisz 13.8V Power Supply | 13.8V, up to 30A | USB charging, cigarette lighter and screw terminals |
| 12/13.8V Bench Power Supply | 13.8V DC, up to 30A | Noise offset control, backlit display |
| Jesverty SPS-30II | 13.8V, 9–15V adjustable | Cooled design, screw terminals, auxiliary outputs |
Jesverty Universal Compact Bench Power Supply SPS-1330
The Jesverty SPS-1330 is a compact, regulated bench power supply designed to deliver up to 30 amps at 13.8 volts. It suits CB and HAM radio enthusiasts who need a stable 13.8V supply on a small footprint. The unit measures a compact profile and weighs roughly three pounds, making it suitable for desktop use or portable bench setups. A key feature is screw-type terminals for easy, secure connections to load cables and test leads, reducing the need for adapters in field or shop environments. A cooling fan helps maintain performance under load.
Highlights include a straightforward AC-to-DC conversion path, robust construction for tabletop use, and front-panel output terminals designed for ergonomic cable hookup. The combination of reliability, compact size, and screw-type output makes the SPS-1330 a practical choice for power-hungry radio rigs and other 13.8V equipment. Consider this unit when you want a no-frills, solidly documented supply that prioritizes dependable DC output in a small package.
13.8V AC/DC Adapter Replacement for Uniden Radios
This replacement adapter targets Uniden scanners and related devices, providing 13.8V DC output with safety-oriented protections. It emphasizes intelligent safeguards against incorrect voltage, short circuits, and overheating. Designed for broad compatibility, it operates within typical 100–240V input ranges and includes a four-foot cable, offering flexible installation options in home stations or mobile setups. It is marketed as brand-new and non-OEM, so checking device compatibility before purchase is advisable for a precise match.
Safety and compliance are central to this unit, with listed protections intended to guard both the adapter and connected equipment. The combination of a standard AC input and DC output makes it suitable for quick swaps in a busy radio shack, mobile installations, or field day setups where a dependable 13.8V source is needed alongside other gear.
Naweisz 13.8V Power Supply With USB and Dual Connectivity
The Naweisz 13.8V power supply combines regulated DC output with convenient USB charging. It reliably converts AC power to a stable 13.8V DC output, delivering up to 30A for radio, marine, or scanner use. A notable addition is a USB Type-A port (5V/2A), enabling simultaneous device charging without a separate power block. The supply offers multiple connectivity options, including cigarette lighter and screw-terminal outputs, plus a power socket adapter for powering portable devices directly. This multi-interface approach supports a wide range of setups—from bench rigs to mobile vehicles.
For users needing flexibility, the included power-socket adapter reduces the need for additional accessories. The design emphasizes practical everyday use, with a focus on continuous performance and handy charging alongside traditional DC power delivery. Consider this model when USB charging alongside 13.8V output adds value to your station or vehicle installation.
13.8V 30A Bench Power Supply With Noise Offset
This bench power supply is designed for HAM and CB radios requiring a steady 13.8V output with ample current headroom. It supports up to 30A with continuous operation around 20A, making it suitable for peak loads during radio transmission or scanner activity. A standout feature is an adjustable noise offset control, intended to minimize switching noise related to frequency and mode variations. The unit includes a backlit meter for easy voltage or current readouts, aiding monitoring during long operating sessions. A single-button switch provides quick power control for the bench.
Jesverty SPS-30II Universal Bench Power Supply
The SPS-30II expands versatility with adjustable output from 9V to 15V, or a fixed 13.8V setting. It maintains robust screw-terminal outputs, enabling easy wiring to diverse DC devices. An auxiliary output setup includes two additional terminal pairs and a front-panel cigarette lighter socket, broadening connection options for test rigs or field kits. The unit’s voltage control and flexible outputs suit users who require both a precise 13.8V baseline and the ability to swap to other voltages for different gear without swapping power supplies.
Buying Guide: Key Purchase Considerations
- Current capacity vs. load: Determine your peak and continuous current needs. Ham radios, especially during transmission, can demand high bursts; choose a supply with a comfortable margin above your typical load (30A is common for hobby setups).
- Voltage stability and regulation: Look for linear or switching regulation that maintains a steady 13.8V under load. Noise offset control or filtering helps minimize interference with sensitive radio receivers.
- Connectivity: Screw-type terminals provide sturdy connections for bench work, while cigarette-lighter sockets offer vehicle compatibility. USB charging adds convenience for mobile setups or field days.
- Protection features: Overcurrent, short-circuit, and overheat protections protect both the supply and connected equipment. Safety certifications (CE, FCC, etc.) add reliability and compliance.
- Form factor and cooling: A compact footprint benefits desk setups, but ensure adequate cooling for continuous operation. A fan helps maintain performance during sustained loads.
- Display and usability: Backlit or easy-to-read meters help monitor voltage and current at a glance. Simple controls reduce operation errors in busy environments.
- Compatibility and drivers: If you have multiple devices, prefer models offering both fixed 13.8V output and adjustable ranges (e.g., 9–15V). This supports experimentation with accessories and different rigs without new hardware.
- Accessories and expandability: Consider auxiliary outputs or additional sockets if you plan to power multiple devices or adapters from a single unit.
The selected options cover a spectrum from compact, cost-conscious bench power supplies to versatile units with USB charging and multiple outputs. When selecting a unit, map your typical station layout, the devices you power, and your mobility needs. This helps ensure the chosen supply delivers stable 13.8V output, enough current, and flexible connectivity for reliable operation across everyday radio tasks and field activity.