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BLUETTI SolarX 4K Solar Charge Controller
Accessories, Easter Sale

BLUETTI SolarX 4K Solar Charge Controller

$1,259.00

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Product Description

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.

BLUETTI SolarX 4K solar charge controller showcasing versatile applications for off-grid power, home backup energy storage and DIY solar farm systems

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.

BLUETTI Apex 300 with B300K battery for portable backup power

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

BLUETTI dual Apex 300 stations with four B300K batteries and two SolarX 4K panels for reliable off-grid living and home backup power supply

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.

BLUETTI triple Apex 300 stations with nine B300K batteries and three SolarX 4K panels for large-scale off-grid solar generator and whole-home backup power

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.

BLUETTI interface and accessory cables compatible with Apex 300, AC300 to AC500 power stations, B300K and B300 expansion batteries for flexible off-grid connections

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.

BLUETTI mobile app interface for controlling and monitoring solar power systems remotely anytime and anywhere, including off-grid and home backup setups

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
BLUETTI SolarX 4K solar charge controller for high-efficiency off-grid power and portable solar energy systems

P090D

x 1
BLUETTI P090D cable with locking terminal connector for secure connection to power stations and solar panels

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

Frequently Asked Questions

How much does the BLUETTI SolarX 4K Solar Charge Controller cost?▾

The BLUETTI SolarX 4K Solar Charge Controller is priced at $1259.00. Free shipping is available on orders over $49.

How long does shipping take for the BLUETTI SolarX 4K Solar Charge Controller?▾

Orders typically ship within 24 hours. Standard delivery takes 7-15 business days depending on your location. offers worldwide shipping with tracking on every order.

What is the return policy for the BLUETTI SolarX 4K Solar Charge Controller?▾

offers a 30-day money-back guarantee on all products including the BLUETTI SolarX 4K Solar Charge Controller. If you're not satisfied, you can return it for a full refund — no questions asked.

Is the BLUETTI SolarX 4K Solar Charge Controller a good choice for accessories, easter sale?▾

Yes, the BLUETTI SolarX 4K Solar Charge Controller is one of our top-rated products in the Accessories, Easter Sale category, with a 4.8/5 star rating from our customers. It's designed for quality and reliability.

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