could this be used to power a raspberry pi? wondering if it will be able to output the 5.1v at 3 amps constantly

I use them to power Pi 3b+ and Pi4. No problems at all. The Pi's are used in radio applications which use 18.8V power. More convenient to power off the 13.8v power rails. I also use it to power a Pi3B+ used in Octoprint for my Ender 3 printer. 24v power taken from the Ender 3 power supply through the buck to power the Pi.

Do you have a suggested way to mount these usb boards? Is there an adapter housing?

I used Hammond 1551USB2BK housing and mounted using epoxy.

Does this have low voltage protection that automatically shuts off when voltage drops below 12 volts? If so, can you turn it off?

The input range is 6-32V. I operate mine at 6-8V typically. You don’t have to do anything special for this.

do they auto cut off when battery is charged?

No. As long as there is power to the converter it will supply power at the USB port. The device being charged should have its own battery management system to cut off power when appropriate.

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DROK USB Buck Converter, 4pcs DC-DC Step Down Module 6-32V 12V 24V to 5V QC 3.0 Charging Module Power Supply Voltage Regulator Volt Transformer Board

DROK USB Buck Converter, 4pcs DC-DC Step Down Module 6-32V 12V 24V to 5V QC 3.0 Charging Module Power Supply Voltage Regulator Volt Transformer Board

Product ID: 216314711

Details

Brand
DROK
Color
Black Mini
Input Voltage
32 Volts
Item Weight
1.23 Ounces
Output Voltage
5 Volts

⚡6-32V wide input range

🔋24W max output power

🚀QC 3.0 fast charging support

4864 som

Duties & taxes included

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Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power your projects smarter, faster, and safer!

RAPID CHARGING TECH - Supports Quick Charge 3.0 and multiple fast charge protocols to power your devices at lightning speed, eliminating downtime.
COMPACT VERSATILE 4 PACK - Four mini modules included for multiple projects or backup, ideal for DIY enthusiasts and professional setups alike.
ROBUST MULTI LAYER PROTECTION - Built-in safeguards against over-voltage, under-voltage, over-current, short circuits, and overheating ensure reliable, worry-free operation.
INTUITIVE LED STATUS INDICATOR - Real-time visual feedback on module operation keeps you informed and in control at a glance.
UNIVERSAL VOLTAGE COMPATIBILITY - Seamlessly converts 6-32V DC inputs to stable 5V outputs, perfect for diverse power sources from solar panels to car batteries.

The DROK USB Buck Converter 4-pack offers a compact, high-efficiency DC-DC step-down solution with a wide 6-32V input range and stable 5V output. Featuring Quick Charge 3.0 compatibility and comprehensive protection mechanisms, these modules are perfect for DIY solar, automotive, and household power projects, delivering up to 24W per unit with clear LED status indicators.

Specifications

ASIN	B087RHWTJW
Best Sellers Rank	#37,535 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #152 in Power Converters
Brand	DROK
Color	Black Mini
Customer Reviews	4.4 out of 5 stars 798 Reviews
Input Voltage	32 Volts
Item Weight	1.23 Ounces
Manufacturer	DROK
Mfr Part Number	200405CA
Model Number	200405CA
Number of Outlets	1
Output Voltage	5 Volts
Plug Format	Type A
Plug Type	Type A
Power Source	DC power
Unit Count	4.0 Count

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