BLUETTI SolarX 4K Solar Charger Controller

Overview

The BLUETTI SolarX 4K Solar Charger Controller delivers ultra-fast solar charging for a wide range of BLUETTI power stations and battery packs. Supporting 150–500V solar panels, it converts energy into safe sub-60V output, allowing faster charging and more stored energy for off-grid setups, home backup, or cabin use.

Meet the world's first 4kW solar charge controller. The SolarX 4K takes input from nearly any rooftop or ground solar array and converts it into safe, efficient charging for BLUETTI power stations. That means faster charging, more stored energy, and reliable power for your home, cabin, or solar project.

It works seamlessly with a wide range of BLUETTI power stations and battery packs, including Apex 300, AC300, AC500, B300K, B300, and B300S. Whether charging one unit or several at once, SolarX 4K delivers safe, efficient, and flexible solar charging tailored to your setup. Easily monitor your system in real time, receive firmware updates, and troubleshoot instantly via the BLUETTI app, giving you complete control wherever you are.

Core Features

• Ultra-fast solar charging up to 4,000 W output for BLUETTI batteries.
• Supports solar panel input from 150 V to 500 V.
• Reliable MPPT efficiency up to 99% with isolation protection.
• Scalable solar power: use 1–3 units for home or off-grid systems.
• Seamless compatibility with multiple BLUETTI power stations and battery packs.
• Wireless and app-based monitoring via CAN 2.0, Bluetooth, and Wi-Fi.
• Air-cooled design with IP21 protection and quiet operation.

Performance & Compatibility

Designed for versatile solar setups, the SolarX 4K ensures your system charges efficiently while keeping your BLUETTI DC ports free for additional panels. Ideal for home backup, off-grid cabins, or building a multi-kilowatt solar array. Scalable and flexible, it integrates smoothly with your existing power stations for safe, consistent energy delivery.

Control & Monitoring

Easily track your solar system's performance in real time, receive firmware updates, and troubleshoot instantly with the BLUETTI app. Enjoy full control and flexibility no matter where your power station is installed.