36V 48V to 12V 25A 300W DC DC Step Down Converter Voltage Regulator

SKU: B20-3648-12

$13.90

Located in: CN

CN US DE AU

Product variants

Quantity

Estimate delivery times: 12-26 days (International), 3-6 days (United States).

Return within 30 days of purchase. Duties & taxes are non-refundable.

Guarantee Safe Checkout

36V 48V to 12V 25A 300W DC DC Step Down Converter Voltage Regulator

Wide input voltage from 30 to 60V

Work for appliances from 0AMP to 20AMP automatically

100% full rated power

100% full stable output current

100% burn-in test

High-efficiency up to 95%

Waterproof sealed

Cooling by free air convection

Surface mountable

2-year warranty

Over-current, over-voltage protections

Over-temperature protection

According to:

EN 61000-6-3:2007/A1:2011/AC:2012

EN 55014-1:2006/A2:2011 EN 60950-1:2006/AC:2011

Efficiency: 95%

Input Voltage: 30-60V DC

Output Voltage: 12V

Output Current: 20A

Ripple: 200mVp

Line Regulation: ±0.2%

Load Regulation: ±0.2%

Voltage Accuracy: ±1.5%

Enclosures: IP68

Dimension: 74*74*31mm

Net Weight: 0.28kg

Operating Temperature: -40~85°C

Certificates: CE, ROHS

Datasheet in details, Please download.

Located in	CN, US, DE, AU

Let customers speak for us

from 41 reviews

Step up Dc to Dc converter

Converter arrived in a reasonable time. Tracking information was sent and arrived with no damage. Unit works as advertised. Setup was easy to understand. I recommend this product.

Fernando Burgos

24V 36V to 48V 30A 1500W DC DC Step Up Converter Voltage Regulator

03/30/2025

This is a 1168 watt unit. it is listed wrong on the site.

I purchased one of these a few months ago for a van build, so I could use the 12v engine alternator to charge up my 25.6v lithium house batteries.

It does the job, puts out a solid 40 amps, reading 1100+ watts on my battery shunt. It also works well charging in parallel with my solar array, and a 30 amp AC charger.

It also automatically knows to only charge the house batteries if the car is actually running. If you turn the car off the charge stops too. You can also wire in a remote accessory enable switch so you can also disable it while the car is running too, or have peace of mind to know it's off when the car is off.

I'm buying a second one so I can charge my house batteries at 80 amps if need be. I was hesitant at first to buy 2 because the amps/watts for this unit advertised did not compute. But after buying 1 I can confirm it is a 40 amps 1168 watt unit that hits 29.2 volts and works great for charging my 25.6v lithium batteries.

Brandon

12V to 29.2V 40A 1168W DC DC Step Up Converter Voltage Regulator Charger ACC enable

03/26/2025

Daygreen tep Down Converter - Magic

Great little item, does exactly what it says on the box.
Thank you.

John Kevin SLYNE

24V to 13.8V 30A 414W DC DC Step Down Converter Voltage Regulator

03/25/2025

Daygreen Dc to DC converteres

Hands down the best Voltage converter on the market!!!!

Hannahs Golf Cars

12V/24V to 12V 20A 240W DC DC Step Down Converter Voltage Regulator