---
product_id: 265557124
title: "Gxcdizx WHDTS DC-DC USB Step UP/Down Power Supply Module Adjustable Boost Buck Converter Voltmeter Ammeter Battery Capacity Tester 14746BA"
brand: "gxcdizx"
price: "¥19435"
currency: JPY
in_stock: true
reviews_count: 5
url: https://www.desertcart.jp/products/265557124-gxcdizx-whdts-dc-dc-usb-step-up-down-power-supply
store_origin: JP
region: Japan
---

# 20A Output DC 1.2V-35V Overcurrent Protection Gxcdizx WHDTS DC-DC USB Step UP/Down Power Supply Module Adjustable Boost Buck Converter Voltmeter Ammeter Battery Capacity Tester 14746BA

**Brand:** gxcdizx
**Price:** ¥19435
**Availability:** ✅ In Stock

## Summary

> 🔌 Power Up Your Projects with Confidence!

## Quick Answers

- **What is this?** Gxcdizx WHDTS DC-DC USB Step UP/Down Power Supply Module Adjustable Boost Buck Converter Voltmeter Ammeter Battery Capacity Tester 14746BA by gxcdizx
- **How much does it cost?** ¥19435 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/265557124-gxcdizx-whdts-dc-dc-usb-step-up-down-power-supply)

## Best For

- gxcdizx enthusiasts

## Why This Product

- Trusted gxcdizx brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Built-in overcurrent and short circuit protection for peace of mind.
- • **Expert Support:** Enjoy top-notch after-sale service and wholesale opportunities.
- • **Smart Charging:** Easily charge your batteries with adjustable output voltage.
- • **Powerful Performance:** Experience a robust 20A output for all your power needs.
- • **Versatile Applications:** Perfect for industrial automation, scientific research, and more.

## Overview

The GxcdizxWHDTS DC-DC USB Step Up/Down Power Supply Module is a versatile and powerful tool designed for various applications, including industrial automation and battery charging. With a maximum output of 20A and adjustable voltage from DC 1.2V to 35V, it ensures reliable performance while prioritizing safety with built-in protection features. Ideal for professionals seeking efficiency and reliability in their electronic projects.

## Description

Gxcdizx WHDTS DC-DC USB Step UP/Down Power Supply Module Adjustable Boost Buck Converter Voltmeter Ammeter Battery Capacity Tester 14746BA

## Features

- ✔【20A CVCC Step-down Power Module w/Overcurrent Protection】--This power module can be used as a practical DC adjustable CVCC constant voltage constant current buck power supply module. Working Voltage: DC 6V-40V, Output Voltage: DC 1.2V-35V, Output Current: 20A(Max and it needs to add a heat sink if current is more than 10A). Module Type: Non-isolated.
- ✔【Used as A Charger】--This boost power module can also be used as a simple charger. You can use it to charge rechargeable battery. In this situation, the output voltage should be the same with the battery’s work voltage. Check and follow the product images for specific using steps.
- ✔【Strong Self-protection Ability】--This buck power module has powerful protection functions, including Over Current Protection and Short Circuit Protection. And anti-backflow protection makes it possible to connect to the battery to charge directly.
- ✔【Wide Application】--①Industrial Automation. ②Scientific Research Equipment. ③LED Lighting. ④Air Purification. ⑤Civil Equipment. ⑥Solar Panel Voltage Regulator. ⑦Battery Charging. ⑧Wind Turbines.
- ✔【Perfect After-Sale Service, Supports Wholesale】: This buck power module requires basic electronic knowledge and hands-on ability. Please read the using steps before use. Any issues, please do not hesitate to contact us directly for further help. WHDTS has long been engaged in Electronics Related Products wholesale and retail business. Welcome letter to discuss the wholesale business. The bigger the amount is, the more favorable the price is.

## Product Details

- **Brand:** Gxcdizx
- **Power Source:** Battery Powered, Corded Electric
- **Mounting Type:** Rack Mount
- **Current Rating:** 10 Amps, 20 Amps
- **Item Weight:** 0.1 Kilograms

## Images

![Gxcdizx WHDTS DC-DC USB Step UP/Down Power Supply Module Adjustable Boost Buck Converter Voltmeter Ammeter Battery Capacity Tester 14746BA - Image 1](https://m.media-amazon.com/images/I/71BQX-TnX1L.jpg)
![Gxcdizx WHDTS DC-DC USB Step UP/Down Power Supply Module Adjustable Boost Buck Converter Voltmeter Ammeter Battery Capacity Tester 14746BA - Image 2](https://m.media-amazon.com/images/I/71i7TIz-kwL.jpg)
![Gxcdizx WHDTS DC-DC USB Step UP/Down Power Supply Module Adjustable Boost Buck Converter Voltmeter Ammeter Battery Capacity Tester 14746BA - Image 3](https://m.media-amazon.com/images/I/71GY6UWow-L.jpg)
![Gxcdizx WHDTS DC-DC USB Step UP/Down Power Supply Module Adjustable Boost Buck Converter Voltmeter Ammeter Battery Capacity Tester 14746BA - Image 4](https://m.media-amazon.com/images/I/71tmf24nyrL.jpg)
![Gxcdizx WHDTS DC-DC USB Step UP/Down Power Supply Module Adjustable Boost Buck Converter Voltmeter Ammeter Battery Capacity Tester 14746BA - Image 5](https://m.media-amazon.com/images/I/71LyT3PPYiL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: what material are the fins made of?**
A: Aluminum

**Q: want to increase voltage to recharge dash cam battery (hard wire to vehicle). Battery 12V, 10 Amps, will this work? Low voltage warning.**
A: this should work.

**Q: For the whdts 20a model - what is the adjustable range for the constant current output?  specifically - what is the low value of current !!**
A: They are 6v-40v. If you need to go from 12v lower may I suggest a downstep converter.

**Q: does the 20A buck boost really not come with a on-off switch, thats what the picture and my module look like and how to use the 3 hole on/off deal**
A: No On/Off switch included.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    20A Power Supply Module
  

*by A***R on Reviewed in Canada on 11 June 2021*

Excellent. Good quality. These really simplify my use in circuits.

### ⭐⭐⭐⭐⭐ 







  
  
    This is a great little module.
  

*by A***R on Reviewed in the United States on 15 May 2020*

My review is for the Boost&Buck--5V~30V to DC 0.6V~30V. Look at my picture to make sure we're talking about the same one as there are 4 or 5 different models listed together. This one has the input barrel plug and screw terminals on the left, output USB and screw terminals on the right, and four buttons at the bottom running horizontal.***Right up front: I love it. It works great. It's easy. 3D printable case file was easy to find.***The quality isn't the best, but maybe it gets squished around in the envelope on the way to your house? Don't try bending anything. It works fine. Think about the price and where it comes from.The unit came with a QR code that fetches you the instructions download. Super, but the instructions are for a different module. I wanted to find a link for the exact instructions for you people, but I actually couldn't. No big deal. I already said the module is easy to use. It took maybe 10 minutes to figure it out; that's it. Oh, it's easy to lock and unlock the screen. I'm not telling you how. Waste your own 2-3 frustrating minutes figuring out how you accidentally locked it. You can do it!The unit will get hot over ~2 amps. That heat sink will burn your finger. Put a little PC fan next to it (for the university engineers on here that can't use their own brain for wire sizes etc, it doesn't matter what size fan). This is not a "con". Stuff gets hot. Your wife's scentsy pots get hot, and I bet you've got those all over your house, right? Well, stick a fan on it or stay under ~2 amps constant current. Or don't, whatever.I have a 12v 5A laptop style charger with a barrel plug as my input. The input side screw terminals steal 0.25A (from the laptop barrel plug input) to power the fan I was talking about. The screen matches the readout on my multimeter. I tested it as a power source for a fan and LED's. I also tested charging a couple 18650 batteries. It also ran a Pi 4.I bought this to charge my golf kart batteries that got a little wonky over the winter. There are 6 large batteries at 8v each running in series in a golf kart. A few were low enough that my OEM charger wouldn't work. Over a few days this little module got all of them back to 8.8v (3 of the batteries were connected at a time in parallel).Some other reviewers are murky or straight up incorrect about some of the features and settings:-The output is "off" by default. Press the "Stop" button to turn the output on/off.-You 100% CAN change the output default to "on".-The constant current (cc) output feature can be turned on/off.-The display will tell you the input voltage and output voltage. Use the buttons.-The display will tell you the output in A, W, A/hr, and W/hr. Use the buttons.-The display will tell you the voltage of the battery you are charging.It's not made very well, gets hot, and has no instructions. So what? Works great, 5 stars.

### ⭐⭐⭐⭐⭐ 







  
  
    Great product. Very versatile
  

*by D***N on Reviewed in the United States on 9 December 2019*

Very easy to use and quite versatile. I tested this for driving various heating wires/tapes, high power LEDs, charging lithium batteries, and even controlling a ZVS driver. I've found it to have very stable current and voltage regulation over a range of output currents (500mA to over 12A), and it has an efficiency of around 86-91% in the cases I tested. Overall it is a very robust and useful little module and well worth the money.

## Frequently Bought Together

- 20A Power Supply Module DC-DC 6V-40V to 1.2V-35V Step Down Buck Converter Adjustable Buck Adapter CVCC Constant Voltage Constant Current Converter LED Driver
- Eiechip LED Digital Voltmeter Ammeter, Mini DC Digital Multimeter 100V 10A, Blue Red LED Amp Dual Digital Display Volt Meter Gauge, Car Current Monitor Tester 0.28"

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-27*