Use or [-] to navigate to your saved profile (e.g., M2 ).
To access these, hold the button while powering on the unit. Function 0: Auto-output after power-on. (Default is OFF).
Enters the parameter setting mode and toggles between voltage and current settings.
: If you attempt to set an output voltage lower than the input voltage, the current will pass directly through the diode unregulated, which can damage your load. Common Troubleshooting Steps bst900w manual
The is a digitally controlled, non-isolated step-up power supply module. It is highly popular among DIY enthusiasts and solar installers for its ability to convert low input voltages (8V–60V) up to a massive 10V–120V output. This comprehensive operations manual serves as a definitive roadmap to understanding, configuring, and safely utilizing the BST900W module. 📋 BST900W Technical Specifications
Familiarize yourself with the main parts of the BST900W before connecting power:
The output is likely turned OFF (press OK), or your target voltage is set lower than the source voltage. Use or [-] to navigate to your saved profile (e
Cycle Display. Automatically rotates the display through Voltage, Current, Power, and Capacity.
Long-press OK to enter the memory recall menu, select your saved slot, and press OK . 4. Advanced Settings (Special Modes) The BST900W has three hidden functions for automation: 0-n: Automatic output on power-up. 1-n: Cycle display (Voltage, Current, Power, Capacity).
The is a high-power DC-DC step-up (boost) converter designed for precision control over voltage and current . Known for its digital interface and high efficiency, it is a favorite among DIY electronics enthusiasts for battery charging, LED driving, and powering high-voltage equipment from lower-voltage sources. (Default is OFF)
Useful for solar applications to prevent battery over-discharge: Press until the display shows 00.0 . Use arrows to set the minimum input voltage threshold. Press SET to save. ⚠️ Critical Safety Notes
This guide serves as a comprehensive manual for operating the device safely and effectively. 1. Technical Specifications