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Silver metal rectangular power supply unit with compact dimensions

myVolts

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

SKU CH-Q93N-N96W1

Compact DC-DC converter steps 18-36 V vehicle power down to a regulated 13.8 V ±0.2 V at 45 A with over-voltage and over-current protection for mobile radios

  • Product typeAT
  • Wide 18–36 V input suits vehicle electrical systems
  • Stable 13.8 V ±0.2 V output powers two-way radios reliably
  • 45 A continuous current handles high-draw transmitters
  • Over-voltage and over-current protection shields connected equipment
  • 80 % efficiency reduces heat and extends service life

DC-to-DC converter for mobile radios

This compact silver unit steps a vehicle’s DC18V-36V supply down to a regulated DC13.8V±0.2V rail rated at 45A. It is intended for installers who need clean power for two-way radio equipment in cars or trucks.

Critical voltage match for transceiver safety

The output sits at 13.8V with a tight ±0.2V tolerance and ripple of 150mVP-P, while over-voltage protection triggers at 16V±1.5V and over-current protection at 11A±1A. Select this supply only when the radio’s spec sheet calls for exactly that nominal voltage and current envelope.

Simple chassis mount with protection caveats

The metal case measures 13×8.5×5 cm and weighs roughly 488g, allowing direct mounting in a vehicle cavity. Ensure the input source stays within the 18V-36V window and that wiring can handle the 45A load; the built-in protections guard the radio but will not prevent damage from reversed polarity or an undersized feed.

How it compares

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

Price $60.99
Cheaper than about 85% of the 10,869 comparable items (median $142.99).

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Specifications

Product
Product typeAT

Questions about this item

What does the 45 A output rating mean when the supply is running a radio in a vehicle?

The unit can deliver up to 45 A at 13.8 V ±0.2 V, so it will power a high-draw two-way radio continuously as long as the vehicle system stays within the 18 V–36 V input range.

How does the DC 18 V–36 V input range limit what power sources I can use?

It accepts any DC source between 18 V and 36 V, and the 80 % efficiency figure means roughly one-fifth of the input power becomes heat, so the source must handle the corresponding current draw.

What physical space and mounting points does the 13 × 8.5 × 5 cm metal case need?

The supply measures 13 cm long, 8.5 cm wide and 5 cm high, weighs about 488 g, and its metal chassis can be secured with screws or brackets that match those outer dimensions.

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