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Silver metal rectangular power supply unit with input and output terminals visible

myVolts

myVolts Mini Power Supply DC18V-36V Input 13.8V 45A

SKU CH-JES2-B2RW8

A compact switch-mode supply converting 18–36 V vehicle power to a regulated 13.8 V 45 A output with over-voltage and over-current protection for mobile two-way radios

  • Product typeAT
  • Stable 13.8V output protects sensitive radio gear
  • Wide 18V-36V input suits varied vehicle electrical systems
  • Over-voltage and over-current safeguards prevent equipment damage
  • Compact 13 x 8.5 x 5 cm metal housing fits tight installs
  • 45A continuous current delivers reliable power for demanding transmitters

Compact DC power supply for mobile radio

This myVolts unit converts a DC18V-36V vehicle input to a stable DC13.8V±0.2V output rated at 45A. It is built for two-way radio installations that demand clean, regulated power in a small metal enclosure. The 80% effective rate and 150mVP-P ripple keep transmitted audio clear.

Replaces bulky linear supplies in vehicle installs

The wide input range tolerates 18V to 36V systems without a separate step-down converter, and the 11A±1A over-current plus 16V±1.5V over-voltage protections guard the radio from transients. The jump is worth it when space behind the dash is tight and a 13 * 8.5 * 5 cm footprint matters.

Fits behind dash panels with minimal wiring

The silver metal case measures 5.1 * 3.3 * 2.0in and weighs 488g, so it mounts on a flat surface with two screws and needs only heavy-gauge DC leads to the battery and a short feed to the radio. It frees up the cigarette-lighter socket and removes the need for an external voltage regulator.

How it compares

Measured against everything we stock in ATX Desktop Power Supplies, at today’s prices. Recalculated every night.

Price $53.99
Cheaper than about 89% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeAT

Questions about this item

What are the exact dimensions of the power supply so I can confirm it fits my vehicle mounting space?

The unit measures 13 x 8.5 x 5 cm (5.1 x 3.3 x 2.0 in) and weighs approximately 488 g, allowing you to verify clearance in your chosen mounting location.

How do I wire the DC 18 V–36 V input correctly, and what polarity mistake should I avoid?

Connect the supply to a DC 18 V–36 V source observing the marked polarity; reversing the input leads can trigger the protection circuits or damage the converter.

When should I expect to replace the unit based on its protection thresholds and efficiency?

The 80 % efficient converter includes over-voltage protection at 16 V ±1.5 V and over-current protection at 11 A ±1 A; if either threshold is repeatedly reached, internal components may degrade and the unit should be replaced.

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