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Small black rectangular step-down converter with Micro USB output and short cable

BOQZPZR 12V-72V to 5V 3A 15W Step-Down Charger Micro USB

SKU CH-QAMQ-QQB8G

Converts 8–85 V DC input to 5 V 3 A output with a Micro USB plug for charging devices from vehicle power systems

  • Wide 8-85V input suits many vehicles
  • Efficient >93% conversion reduces heat loss
  • 3A 15W output charges phones fast
  • Compact 46x32x18mm fits tight spaces
  • 13-14cm cable keeps dashboard tidy

Purpose & Fit

This BOQZPZR step-down converter takes a wide DC input from 8 V up to 85 V and delivers a steady 5 V at 3 A through a Micro USB plug. It is built for vehicle electrical systems such as 12 V, 24 V, 36 V, 48 V, 60 V or 72 V batteries. The non-isolated module suits anyone needing a compact 15 W USB power source on mobile equipment.

Cable & Form Factor

A short 13-14 cm lead ends in a Micro USB connector, so the unit plugs straight into a phone, tablet or other 5 V device without extra cables. The ABS housing measures 46 by 32 by 18 mm and weighs about 70 g, making it easy to tuck into a dashboard or battery box. Efficiency exceeds 93 % and ripple stays around 40 mV at full load.

Who Should Buy

Riders and technicians who need a single lightweight 5 V supply for one Micro USB device from a high-voltage vehicle system will find it practical. Buyers who want more output current, multiple ports, isolated galvanic separation or a different output connector should look at other options.

How it compares

Measured against everything we stock in Charging Stations & Cables, at today’s prices. Recalculated every night.

Price $57.99
Pricier than about 90% of the 9,983 comparable items (median $18.99).

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Specifications

Product
Brand nameBOQZPZR

Questions about this item

Will the 13-14cm cable need replacing if it frays from daily car use?

The cable is permanently attached to the converter housing, so a damaged lead means replacing the whole 70g unit.

What stops the 3A output first when the module runs continuously at full load?

The thermal limit of the ABS enclosure at 80°C will throttle or shut down the converter before the current limit is reached.

How much heat and no-load draw should I expect from the converter left plugged in all day?

Idle draw is 25mA and efficiency exceeds 93%, so waste heat stays low even during extended operation.

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