The module allows storing frequently used settings (voltage/current profiles).
Use the and DOWN arrow buttons to adjust the target voltage to your desired level.
In setting mode, long-press SET for 10 seconds. Select a slot ( SA.-0 to SA.-9 ) and press OK .
The Ultimate BST900W DC-DC Step-Up Boost Converter Guide: Manual, Setup, and Troubleshooting bst900w manual
If you need a PDF version of the to keep on your phone or computer, here is where to look:
The manual highlights a "10 groups memory" feature, allowing users to store and recall specific parameters instantly—a critical function for repetitive testing or multi-stage projects. Dual Operating States: It outlines the transition between Constant Voltage (CV) Constant Current (CC)
4-digit LED or LCD showing Volts (V), Amps (A), Watts (W), and Capacity (Ah) Cooling: Built-in fan for thermal management 🕹️ Basic Operation Guide Primary Controls SET Button: Toggles between setting voltage and current. Up/Down Arrows: Increases or decreases the selected value. OK Button: Turns the output ON or OFF . Indicators: OUT: Active output. CV: Constant Voltage mode. CC: Constant Current mode (active during current limiting). ⚙️ Advanced Programming Data Storage and Recall The device can store up to 10 groups of settings (0–9). Select a slot ( SA
Features indicators for Constant Voltage (CV) and Constant Current (CC) status. Operation Basics
It is tempting to turn your new device on immediately, but resist the urge.
Press SET again. The display shifts to the current (Amperage) limit. Adjust using the Up/Down buttons. Up/Down Arrows: Increases or decreases the selected value
By default, you must press to enable power when turning the unit on. To force the module to output power instantly upon receiving input voltage: Turn off the input power. Press and hold the OK button, then turn on the input power.
The hardware relies on a two-board sandwich design. The bottom board houses the high-power inductor, MOSFETs, and terminals, while the top daughterboard acts as the control panel. OPERATING MANUAL 900W DC-DC CNC boost module
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.
If you have a 12V or 24V solar battery bank, you can use the BST900W to step up that voltage to 42V or 54.6V to charge common lithium-ion e-bike batteries. By engaging the mode, you ensure the lithium cells charge safely without drawing too much initial current. 2. High-Power LED Driver