The BLUETTI SolarX 4K is the world's first 4,000W solar charge controller, engineered to dramatically accelerate charging for BLUETTI's Apex 300 ecosystem. It accepts solar panel arrays from 150V to 500V and steps the voltage safely down below 60V for seamless, efficient battery charging — no grid required.
With 99% MPPT efficiency, CAN 2.0/Bluetooth/Wi-Fi connectivity, and compatibility across the Apex 300, B300K, B300, AC300, and AC500, the SolarX 4K is the ultimate solar upgrade for serious home backup and off-grid power systems.
Key Features
- 4,000W Solar Output: Delivers up to 4kW DC power (58V/80A) directly to your BLUETTI batteries.
- Wide Voltage Range: Accepts 150V–500V solar input for flexible panel configurations.
- 99% MPPT Efficiency: Maximizes every watt of solar production with minimal loss.
- Smart Connectivity: Monitor and control remotely via Bluetooth and Wi-Fi using the BLUETTI app.
- All-Weather Ready: Operates from -20°C to 55°C (−4°F to 131°F) for year-round performance.
- Safe & Protected: Built-in overcurrent, reverse polarity, and insulation detection protection.
Whether it's your first project or your fifth, our USA-based team is here for you. Lifetime support means you're never on your own.
| Max Output Power | 4,000W (58V / 80A) |
| Solar Input Voltage | 150V – 500V |
| Max Input Current | 17A (13A rated) |
| MPPT Efficiency | 99% Max. |
| Connectivity | CAN 2.0 / Bluetooth / Wi-Fi |
| Operating Temperature | -20°C to 55°C (-4°F to 131°F) |
| Protection Grade | IP21 |
| Compatible Systems | Apex 300, B300K, B300, B300S, AC300, AC500 |
| Weight | 7.6 kg (16.8 lbs) |
| Dimensions | 288.4 × 474.0 × 90.2 mm |
| Warranty | 2 Years |
| Brand | BLUETTI |
BLUETTI SolarX 4K | World’s First 4kW Solar Charge Controller
$699.00Price
