BLUETTI SolarX 4K MPPT Solar Controller for Apex 300 + P090D Adapter Cable

BLUETTI SolarX 4K MPPT Solar Charging Controller for Apex 300 + QTY 1 OF P090D Adapter Cable

Free shipping to the 48 states. We also ship to PR, HI, AK, VI, Guam, and Saipan — message us for a quote.  

If you don’t see the power station brand or model you need, message us.
We can often create a private listing for you at a great price!

Warranty Information

Full factory warranty applies to all customers, including island locations. 
The only exception is warranty shipping to and from island locations, which is not included.
We offer a low‑cost 5‑year Replacement Shipping Protection plan that covers those shipping costs.

INCLUDED SKUs:

SolarX 4K (QTY 1)

P090D Cable (QTY 1)

Description

The SolarX 4K with a P090D Adapter Cable is designed to deliver ultra‑fast solar charging for BLUETTI systems. 

With compatibility across Apex 300, AC300, AC500, B300, B300K, and B300S, it ensures reliable, scalable, and efficient energy solutions for both daily essentials and whole‑home setups.

Built with advanced MPPT technology, this controller maximizes solar energy, protects devices, and provides seamless integration with BLUETTI power stations.

Whether you’re off‑grid or at home, SolarX 4K offers flexible, safe, and powerful solar charging tailored to your needs.

Key Benefits

• Ultra‑fast charging up to 4 kW

• Wide compatibility with BLUETTI systems

• Scalable power from 4 kW to 12 kW

• Safe MPPT technology for device protection

• Flexible integration with existing solar setups

Product Overview

SolarX 4K empowers you to control your solar energy anywhere, anytime. With BLUETTI app connectivity, you can monitor performance, receive updates, and troubleshoot instantly.

Features

• 4,200 W max input power

• 500 VDC open‑circuit voltage

• 150 VDC startup voltage

• 120–450 VDC MPPT operating range

• 80 A max output current

• RJ45 communication interface

• CAN 2.0, Bluetooth, Wi‑Fi connectivity

• Overtemperature protection at 55°C

• IP21 protection grade

• Low noise at 52 dB

Ideal Applications

• Home solar systems

• Off‑grid living

• RV and marine setups

• Emergency backup

• Daily household essentials

Technical Specifications

• Input Power: 4,200 W

• Output Power: 4,000 W

• Voltage Range: 35–58 V

• Efficiency: 99% max MPPT

• Dimensions: 288.4 × 474.0 × 90.2 mm

What’s in the Box

• SolarX 4K Solar Charge Controller ×1

• P090D Adapter Cable ×1

• Fixing Screws (ST4.8) ×8

• Grounding Screws (M5) ×3

• OT Terminals for Ground ×3

• Anchors ×8

• Knockout Connector ×1

• Hex Socket Wrench ×1

• User Manual ×1

Warranty

This product comes with a 2‑year manufacturer’s warranty, ensuring peace of mind and reliable performance for your solar energy system.

Final Verdict

The SolarX 4K with P090D Adapter Cable is the ultimate solution for fast, safe, and scalable solar charging. Perfect for BLUETTI users seeking efficiency, flexibility, and long‑term reliability.