BLUETTI SolarX 4K | World’s First 4kW Solar Charge Controller

The Locking Terminal to P090D Adapter Cable for SolarX 4K is currently out of stock and will ship in late April.
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Compatibility: Apex 300, B300, B300K, B300S, AC300, AC500

  • Ultra-Fast Solar Charging: Delivers up to 4 kW of solar power, so your BLUETTI batteries charge faster and your devices stay powered longer, even off the grid.
  • Universal Solar Support : Supports solar panels from 150 V to 500 V, safely stepping down to below 60 V for effortless, worry-free charging.
  • Reliable & Safe Power: MPPT technology with isolation ensures steady performance, maximizes solar energy, and protects your devices.


Product Model

For Single Apex 300 Use

The Locking Terminal to P090D Adapter Cable for SolarX 4K is currently out of stock and will ship in late April.

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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

Charge to full in just 1.9 hours with 4,000 W of 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.

Charge Your BLUETTI System, Your Way

SolarX 4K works seamlessly with a wide range of BLUETTI power stations and battery packs, from Apex 300 and AC300 to AC500, B300K, B300, and B300S. Whether you're charging one unit, several at once, or mixing stations with batteries, SolarX 4K delivers safe, efficient, and flexible solar charging tailored to your setup.

*For details, please refer to the FAQs.

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

IN THE BOX

SolarX 4K Solar Charge Controller

x 1
SolarX 4K Solar Charge Controller

Fixing Screw(ST4.8)

x 8
Fixing Screw(ST4.8)

Grounding Screw(M5)

x 3
Grounding Screw(M5)

OT terminal(for ground)

x 3
OT terminal(for ground)

Anchor

x 8
Anchor

Knockout Connector

x 1
Knockout Connector

Hex Socket Wrench

x 1
Hex Socket Wrench

User Manual

x 1
User Manual

Locking Terminal to P090D Adapter Cable

x 1
Locking Terminal to P090D Adapter Cable

FAQs

Wear insulated gloves for safety. You can install it yourself if you have basic electrical knowledge. If you're unsure, it's best to let a professional handle the installation.

US$0.00