1000W 50A DC Buck Converter Step Down Power Supply Module
1000W 50A DC Buck Converter Step Down Power Supply Module
1000W 50A Step Down Buck Converter — DC 25V–90V to DC 2.5V–50V Adjustable Power Supply Module
Take full control of your DC power requirements with this high-capacity 1000W 50A Buck Converter Module. Designed for demanding applications, this wide-voltage step-down power supply board accepts input from 25V to 90V (compatible with 36V, 48V, 60V, and 72V battery systems) and delivers a fully adjustable output between 2.5V and 50V — all at up to 50A of current. Whether you're powering angle grinders, impact drills, electric wrenches, hammers, or screwdrivers, this module provides stable, regulated DC voltage with ease.
Made in Mainland China.
Key Features
- High Power Output: Handles up to 1000W and 50A maximum current for heavy-duty power tool applications.
- Wide Input Range: Accepts DC 25V–90V, making it compatible with common 36V, 48V, 60V, and 72V battery packs.
- Fully Adjustable Output: Dial in any DC voltage from 2.5V to 50V to suit your exact power needs.
- Step-Down Only: Operates exclusively as a buck (voltage-reducing) converter — output voltage must be lower than input voltage.
- Compact & Lightweight: Bare board measures just 120 × 96 × 26 mm (241g); enclosure version is 130 × 98 × 40 mm (332g).
- Versatile Use: Ideal for power tools, battery-powered equipment, DIY electronics projects, and regulated DC power applications.
Technical Specifications
| Input Voltage | DC 25V – 90V |
| Output Voltage | DC 2.5V – 50V (adjustable) |
| Maximum Current | 50A |
| Maximum Power | 1000W |
| Bare Board Dimensions | 120 × 96 × 26 mm |
| With Enclosure Dimensions | 130 × 98 × 40 mm |
| Weight | 241g (bare board) / 332g (with case) |
| Compatible Battery Systems | 36V, 48V, 60V, 72V DC battery packs |
Important Usage Notes
- For general-purpose or non-power-tool applications, limit output current to 35A maximum.
- If using this module for battery charging, add a diode to the output to prevent reverse current (backfeed).
- This is a step-down (buck) converter only — it cannot boost voltage above the input level.
- Color may vary slightly from product images due to screen and lighting differences.
- Dimensions may vary ±1–3 cm due to manual measurement.
What's in the Box
- 1× DC Buck Converter Power Supply Board
For more information on electrical safety standards and safe use of DC power modules, visit the OSHA Electrical Safety resource page.
Frequently Asked Questions
Q: What input voltage range does this DC buck converter support?
A: This step-down power supply module accepts a wide input range of DC 25V to 90V, making it compatible with common battery systems including 36V, 48V, 60V, and 72V DC battery packs.
Q: Can I use this converter to increase (boost) voltage?
A: No. This is a step-down (buck) converter only. The output voltage must always be set lower than the input voltage. It cannot boost or increase voltage above what is supplied at the input.
Q: What is the maximum current and power this module can handle?
A: The module supports up to 50A maximum current and 1000W of total power when used for compatible power tool applications. For other general uses, it is recommended to keep the current at or below 35A for optimal performance and longevity.
Q: Do I need any additional components if I use this module for battery charging?
A: Yes. When using this buck converter module for charging purposes, you should add a diode to the output terminals to prevent backfeed (reverse current flow) that could potentially damage the module or connected equipment.