SKU: 75779325521

BLUETTI SolarX 4K Solar Charge Controller

$566.55 $629.50
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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

BLUETTI SolarX 4K Solar Charge ControllerSeamless Solar Compatibility, Supercharged Meet the world's first 4kW solar charge controller. The BLUETTI SolarX 4K takes 150500V from nearly any rooftop or ground array and converts it into safe, sub 60V charging for BLUETTI power stationsup to 4,000W. That means faster charging, more stored energy, and reliable power whether you're backing up your home, running an off grid cabin, or building your own solar farm. Scalable Solar Power, 4 kW to 12 kW

Seamless Solar Compatibility, Supercharged

Meet the world's first 4kW solar charge controller. The BLUETTI SolarX 4K takes 150–500V from nearly any rooftop or ground array and converts it into safe, sub-60V charging for BLUETTI power stations—up to 4,000W. That means faster charging, more stored energy, and reliable power whether you're backing up your home, running an off-grid cabin, or building your own solar farm.

Scalable Solar Power, 4 kW to 12 kW

SolarX 4K lets you decide how much solar power fits your life. Use one unit to cover daily essentials, or scale up to three for your whole home. It connects to your existing solar setup via AC coupling, keeping BLUETTI's DC input ports free for extra panels, so you get more energy, faster, without tying up your system.

Apex 300+B300K+SolarX 4K

Charge to full in just 1.9 hours with 4,000 W solar, fast enough to keep lights, small appliances, and everyday devices ready when needed.

Note: Data tested by BLUETTI Labs. Actual charging times may vary

2x Apex 300 + 4x B300K + 2x SolarX 4K

8,000 W solar delivers reliable energy for larger appliances, power tools, and extended off-grid living.

3×Apex 300 + 9×B300K + 3×SolarX 4K

Scale to 12 kW, plus 7.2 kW from extra panels for a total of 19.2 kW, enough for heavy loads like central air conditioners, refrigerators, or a full home backup.

Control Your Solar Power Anywhere, Anytime

Easily monitor your system in real-time, receive firmware updates, and troubleshoot instantly, all from the BLUETTI app, giving you complete control wherever you are.

Tech Specs

INPUT

Max. Input Power4,200 W
Open-Circuit Voltage500 VDC
Startup Voltage150 VDC
MPPT Operating Voltage120 VDC to 450 VDC
Number of MPPT1
Rated Input Current13 A
Max. Input Current17 A

OUTPUT

Output Power4,000 W
Max. Output Voltage58 V
Min. Output Voltage35 V
Max. Output Current80 A
Communication InterfaceRJ45

GENERAL

MPPT Efficiency99% Max.
ConnectivityCAN 2.0/Bluetooth/Wi-Fi
Overtemperature Protection55°C (131°F)
Operating Humidity-20°C to 55°C (-4°F to 131°F)
Operating Altitude≤ 2,000 m (6,562 ft)
Noise Level52 dB
Cooling MethodAir Cooling
Net Weight7.6 kg (16.8 lbs)
Protection GradeIP21
Dimensions (L × W × H)288.4 × 474.0 × 90.2 mm
Warranty2 Years

IN THE BOX

SolarX 4K

x 1

P090D

x 1

Hex Socket Wrench

x 1

Fixing Screw (ST4.8)

x 1

Grounding Screw (M5)

x 1

Anchor

x 1

Knockout Connector

x 1

OT Terminal

x 1

Documents

x 1
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: 75779325521

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4.2 ★★★★★
Based on 20 reviews
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Product Reviews
J
Verified Purchase
John
Omaha, US
★★★★★ 5
Great cover!!
Size: 55 Inch, Color: black, Size: 55 Inch, Color: black
Best grill cover I've purchased. One year old, looks brand new! Last one was an expensive Cuisinart one. Two years and it was ripping to shreds from sun damage. In the pic, the smaller cover is a Cuisinart cover on an electric smoker and you can see it's faded to white on the top and not gonna last much longer! This grill cover looks and feels brand new! Sits in the sun everyday.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
C
Verified Purchase
CWT
Charlottesville, US
★★★★★ 5
Awesome cover worth the money
Size: 55 Inch, Color: black
Nice and heavy duty. Been a heavy rain season this year and this cover is a champ. It's thick and easy to use. Did my cheapo nexgrill 5 burner perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
G
Verified Purchase
GM
Dallas, US
★★★★★ 5
I got 6 years use out of it and just re-ordered a new one! Best grill cover I’ve ever purchased.
Size: 50 Inch, Color: black, Size: 50 Inch, Color: black
Very durable! I noticed earlier this spring that mine was starting to rip after several strong spring wind storms. I knew I had had it for several years but I wasn’t sure how long. I went in my orders page and saw that I ordered it back in 2020 so I got 6 years out of it!! Note that it stays outside on the deck all year round, and that includes during Northeast US winters with frigid temperatures and snow and I only now started to see the tears in it this spring. The tear started at the top of the grill, and actually started falling apart more after I touched it. Refer to the attached photos of mine after 6 years. I think it’s very durable for sitting outside for 6 years and only now only starting to show wear . You can also see how it didn’t really fade despite getting full afternoon sunlight. The velcro ties at the bottom,are also a plus as far as getting it to stay in place and not blow off. That’s why I definitely just repurchased the same one. Hopefully, I will get at least 6 years out of the new one when it arrives tomorrow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
B
Verified Purchase
Brandon Jimenez
Port Orchard, US
★★★★★ 5
Looks sharp, concert black, comfortable some stretch
Size: Medium, Color: Black
I bought this for my son to wear at his band concerts, and it’s been perfect. He’s about 5’8” and 155 lbs, and I got him a men’s medium—it fits really well with a comfortable, true-to-size feel. The quality is excellent: soft, lightweight, and breathable, with just enough stretch so he has the flexibility he needs while playing trombone. It also looks really sharp on stage.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
S
Verified Purchase
Shania Seeraj
Chelsea, US
★★★★★ 5
Great
Size: Medium, Color: Black
The sleeves are exactly how it’s showing on the picture. The size is great. I believe it’s a good value for money. The color is amazing. The quality is great. It’s very light and it’s very comfortable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026

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