12V to 28V 40A 1120W DC DC Step Up Converter Charger Voltage Regulator ACC Enable

SKU: A1C28C40

$180.00

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

12V to 28V 40A 1120W DC DC Step Up Converter Charger Voltage Regulator ACC Enable

Wide input voltage from 11 to 16V

The output voltage is stable 28V

Charge 24V lead-acid or lithium battery

Work for appliances from 0AMP to 40AMP automatically

The charger works when the engine turns on only

ACC Enable

100% full rated power

100% full stable output current

100% burn-in test

High-efficiency up to 96%

Waterproof sealed

Cooling by free air convection

Surface mountable

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: 11-16V DC

Output Voltage: 28V

Output Current: 40A

Ripple: 200mVp

Line Regulation: ±0.2%

Load Regulation: ±0.2%

Voltage Accuracy: ±1.5%

Enclosures: IP68

Dimension: 220*130*50mm

Net Weight: 2.2kg

Operating Temperature: -40~85°C

Certificates: CE, ROHS

Warranty: 3 years

Located in	CN, US, DE, AU, UK, FR

Let customers speak for us

from 63 reviews

Highly Recommend

Easy to order, very good quality equipment, very good communication. Excellent all round service

Andrew Glover

12V/24V to 36V 15A 540W DC DC Step Up Converter Voltage Regulator

04/16/2026

Good Product

Our machines use Daygreen voltage converters and I haven't had 1 fail yet.

Dave Stutzman

12V to 24V 40A 960W 1000W DC DC Step Up Converter Voltage Regulator

04/14/2026

12V to 28V 20A 560W DC DC Step Up Converter Voltage Regulator Charger ACC enable

จิรวัฒน์ นิยมางกูร

12V to 28V 20A 560W DC DC Step Up Converter Voltage Regulator Charger ACC enable

03/16/2026

👌

Modestas Gudauskas

12V/24V to 5V 30A 150W DC DC Step Down Converter Voltage Regulator

03/03/2026

Audio power supply

Used this to power a 900W JL audio amplifier and it works great - no additional hum or noise in power supply. Voltage stays consistent

Dan Moroni

36V 48V 72V to 12V 100A 1200W DC DC Step Down Converter Voltage Regulator w/ACC

02/23/2026

Rendelés

Teljesen meg vagyok elégedve vele köszönöm szépen 🙋

Danó Gyula

48V 60V 72V to 12V 20A 240W DC DC Step Down Converter Voltage Regulator

02/12/2026

Product works fine, shipping could use improvement

The regulator works fine, but the processing and handling time between ordering and receiving the product could benefit from improvement.

Devon Conners

24V to 12V 13.8V 30A 414W DC DC STEP DOWN CONVERTER VOLTAGE REGULATOR W ACC SWITCH 3 YEARS WARRANTY NEWEST

12/26/2025

Working like a champ

Chester Kordecki

12V to 48V 20A 960W DC DC Step Up Converter Voltage Regulator

11/29/2025

Mr.

So far i'm returning costemer and very happy with postages
and quality.
Thnx

JOSIP PETRUSINSKI

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

11/27/2025

Nice DC DC booster for 51,2v Lifepo4 batteries

I am really satisfied with this product so far, it charges my 5kwh battery during car drives. Looses a bit of power throughput when it gets warm, but still charges at least around 800-900watts continuous

Niclas Miers

12V/24V to 58V 20A 1160W DC DC Step Up Converter Voltage Regulator Charger

10/25/2025

perfect work

good and fast communication, very friendly and helpful, fast shipping, good product

Jens-Peter Ruske

48V 60V 72V to 12V 20A 480W DC DC Step Down Converter Voltage Regulator with Connectors

09/04/2025

Good product, nice price.

Paul van den Boogaard

12V to 48V 20A 960W DC DC Step Up Converter Voltage Regulator

08/28/2025

STEP DOWN CONVERTER

All found in good order! Tnx

Smilja Dangubic

12V/24V to 5V 5A 25W DC DC Step Down Converter Voltage Regulator Smaller Type

08/27/2025

Solid converter, no fuss

I recently purchased the Daygreen voltage converter, and it's been flawless. This has been more than enough to power all my 12V devices simultaneously without any issues. I've noticed that it has a high efficiency rate, up to 95%. So far, I haven't experienced any overheating problems

Daniel Brown

24V to 12V 100A 1200W DC DC Step Down Converter Voltage Regulator

08/02/2025

Transport

With the post office no tax but sending with DHL is chargeable, too bad

Frederic Meylan

48V 60V 72V to 12V 10A 120W DC DC Step Down Converter Voltage Regulator

07/30/2025