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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lauren bensley
Omaha, US
★★★★★ 5
Great smell
Size: 2 Fl Oz (Pack of 1)
Smells amazing, and goes on clear
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
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Matthew Shesko
Lexington, US
★★★★★ 5
“Holy Sun Protection, Batman! This Stuff Works!” 🦇🦸‍♂️
Size: 6 Fl Oz (Pack of 1)
The COOLA Organic Sunscreen SPF 50 Sunblock is the real deal. It goes on smooth, absorbs quickly, and doesn’t leave behind that greasy, chalky layer most sunscreens do. I put it to the test during a full day outdoors, and it held strong—no burns, no irritation, just solid protection. What makes it even better is the formula: not overloaded with harsh chemicals, but still highly effective. It feels more like skincare than sunscreen, which makes reapplying far less of a chore. If Batman and Robin swapped their capes for beach towels, this would be the sunblock in their utility belts—powerful protection, clean ingredients, and a formula that actually works when the heat is on. 🦇☀️ Would you like me to also create short funny one-liner summaries for each review (like quick taglines), so you have both the full review and a quick punchy line to use?
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Reviewed in the United States on August 19, 2025
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Sarah
Battle Creek, US
★★★★★ 4
will most likely buy again
Size: 6 Fl Oz (Pack of 1)
pros: clear, smells amazing, multiple spf choices cons: leaves a coat of grease on the skin (but not as bad as other brands), expensive
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Reviewed in the United States on October 4, 2025
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Careful Shopper
Lake Worth, US
★★★★★ 5
Great scent and no sunburns
Size: 6 Fl Oz (Pack of 1)
This is easy to spray on, not sticky and smells delicious! Most important, no sunburn!
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Reviewed in the United States on November 25, 2025
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cassie cruz
Cuba, US
★★★★★ 5
Smells good a protection is on point
Size: 2 Fl Oz (Pack of 1)
Omg the scent of this is fantastic!!! Used it on my trip in PR AND DID NOT BURN !! great quality
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Reviewed in the United States on February 28, 2026

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