Bluetti D40 DC-DC Battery Charger
SKU: 17169324879

Bluetti D40 DC-DC Battery Charger

Sale price$179.10 Regular price$199.00
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Description

Bluetti D40 DC-DC Battery ChargerCompatible Models with the Bluetti D40 DC DC Battery Charger: BLUETTI AC200L 12V 30A, 400W Max. DC Output Compatible with LiFePO, AGM Gel, Lead acid, and Calcium Batteries Charge RV House Battery via AC200L Solar Panels Starter Batteries House Starter Battery Protection Charge up 12V RV Appliances Bluetti D40 DC DC Battery Charger: Plug and Play DC DC Battery Charger for AC200L Elevate your power experience with the D40, a compact and robust DC DC

  • Compatible Models with the Bluetti D40 DC-DC Battery Charger: BLUETTI AC200L
  • 12V / 30A, 400W Max. DC Output
  • Compatible with LiFePO₄, AGM / Gel, Lead-acid, and Calcium Batteries
  • Charge RV House Battery via AC200L / Solar Panels / Starter Batteries
  • House / Starter Battery Protection
  • Charge up 12V RV Appliances

Bluetti D40 DC-DC Battery Charger: Plug-and-Play DC-DC Battery Charger for AC200L

Elevate your power experience with the D40, a compact and robust DC-DC battery charger meticulously crafted to complement our formidable AC200L power station. Engineered with cutting-edge electronic protections and input-to-output isolation, the D40 guarantees utmost efficiency and safety in every charge. Simply integrate D40 into your RV or marine vessel, enhancing your power capabilities with reliable and efficient charging.

Universal Compatibility

The D40 offers unparalleled compatibility with diverse battery types, including LiFePO₄, AGM / gel, lead-acid, and calcium batteries. Furthermore, when paired with the AC200L, the D40 can fuel all your 12V loads. Whether you're navigating the open road or setting sail on an adventure, the D40 ensures a hassle-free journey with reliable power delivery.

Empowering Various Sources

Unlock the true potential of your power with versatile output options of D40. Whether drawing power from the AC200L, solar panels, or the starter battery, the D40 charges your house battery or DC devices with ease. Experience uninterrupted power supply with optimal convenience and performance.

Seamless Control, Effortless Power Management

With the D40's intuitive interface, streamlining your power management has never been simpler! It features clear indicators and user-friendly controls, allowing you to stay informed with real-time charging status, fine-tune settings, and more.

Specifications

GENERAL

  • Charging Power: 400 W
  • Weight: Approx. 2 kg / 4.4 lbs
  • Dimensions (L × W × H): 232.7 mm × 180.7 mm × 69.2 mm / 9.2 in × 7.1 in × 2.7 in
  • Working Temperature: -20°C to 45°C / -4°F to 113°F
  • Storage Temperature: -20°C to 50°C / -4°F to 122°F
  • Working Humidity: 10% to 90%
  • Noise: 43 dB Max 
  • Working Altitude: Up to 2,000 m / 6,561 ft
  • Protection Grade: IP20 

DC Output

  • Current: 30A Max. 20A Max. (AC200L and other BLUETTI portable power stations)
  • Voltage: Lead-acid 14.4V Max. LiFePO₄ 14.4V Max. AGM / gel 14.7V Max. Calcium 15.4V Max.
  • Load Mode: 12V / 20A (AC200L and other BLUETTI portable power stations) 

DC Input

  • 48V DC : 45V to 60VDC
  • PV / Starter Battery: 12V to 36VDC, 20A Max.

Still have questions? Give us a call at 877-242-2792

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 17169324879

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4.8 ★★★★★
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Linda Carol Allen
Lowell, US
★★★★★ 5
Great product for rv
This is an excellent product. The front of our camper was very faded from the sun even though we keep it under a cover. After four coats, it looks like a different RV. We are going to do the entire camper. The difference is amazing. You will be so happy with the results. We would give it a 10 if possible.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 19, 2025
R
Verified Purchase
Royal foil
Lake Worth, US
★★★★★ 5
Amazing fiberglass restoration.
So easy to use and fabulous results. A few years back I had tried Maguires products to restore the shine on a 5th wheel. That was so labor intensive and the results were struggled to achieve faded quickly. I hesitated to Poli Glow due to the cost and our prior attempts lackluster results. I was able to get the restoration kit at a discount on Black Friday through the stores website and tackled the camper with the temps between 60-90 as instructed. I bought 2 of those kits just to find out that due to the climate and UV exposure the number of coats I would need for the Poli Glow was going to exceed the amount I had on hand through the 2 restoration kits. So I had to scramble to buy another bottle of Poli Glow. Applying this product is just time consuming and not difficult. Make sure to properly prepare the surface before using poliglow. The whole system turn a badly oxidized camper into a shiny finish. I am truly shocked. Hopeful the results will last a while. 5th wheel camper 40 foot long. I have used 3 poliglow bottles (12 coats), 1 bottle poli ox, 1.5 bottles of Poli wash (of course, not in that order). I potentially need 1 more bottle of Poli Glow to finish nose cone/basement area (basement area is still in good condition so may not do this area if I can get the nose cone with the remainder of the Poli glow I have.)
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Reviewed in the United States on January 19, 2026
K
Verified Purchase
Kindle Customer
San Leandro, US
★★★★★ 4
Worth the time and effort.
After proper surface prep and 6 applications, my badly sun damaged RV shined like new, with many compliments. However, after a few months under the cover, the fiberglass surfaces that were in contact with the occasionally wet cover in the Florida sun discolored badly, and will have to be wet sanded and the coating re-applied. Also, the polish does not hold up well where boat fenders rub against the coating, and it wears away in cockpit areas that are heavy hand traffic, like hatchways and around handrails. Overall a decent product, I will probably re-apply in a couple seasons.
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Reviewed in the United States on September 23, 2025
R
Verified Purchase
Randy Brown
Louisville, US
★★★★★ 5
Brings old paint back to life.
Best product for fiberglass oxidation. Tried many different wax’s and compounds. Poly Glow did what the wax could not do.
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Reviewed in the United States on April 29, 2026
L
Verified Purchase
L. D. Wlson
Belleville, US
★★★★★ 5
The beautiful shine!!!!
Wow so amazing!!!!! I have a 35 ft trailer you will need 2 bottles for two coats. Well worth the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026

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