Illuminates when the module enters current-limiting mode.
fuse for short-circuit protection and a cooling fan for heat dissipation. Core Operating Instructions
: Switches between voltage adjustment, current adjustment, and storage parameters. Up Arrow (▲) : Increases the selected numerical value. Down Arrow (▼) : Decreases the selected numerical value.
Is your module the version with the or the 4-digit red LED display ? Share public link bst900w manual
To safely charge batteries, set the to the battery's full charge voltage (e.g., 12.6V for 3S Li-ion) and set the Current to a safe charging rate (e.g., 2A). Connect the battery. The unit will start in CV mode, and as the battery reaches full charge, it will switch to CC mode, slowing the current naturally.
Connect your load (e.g., battery pack, LED array) to the OUT+ and OUT- terminals.
: Illuminates when the output terminals are actively energized. Illuminates when the module enters current-limiting mode
The BST900W is a sophisticated and powerful DC-to-DC step-up (boost) converter module that has become a favorite among electronics enthusiasts, engineers, and DIY makers. This compact yet robust unit is capable of turning a low-voltage DC input into a much higher, adjustable voltage output, all while managing constant current for safe and efficient operation. Whether you are looking to power a high-end LED array, charge a lithium battery pack, create a variable bench power supply, or drive a DC motor, the BST900W offers a digital solution with high precision and stability.
The digital interface allows you to set precise limits and determine how the device behaves upon receiving input power. Setting Voltage and Current Limits
The BST900W includes 10 memory slots (M0 through M9) to store frequently used voltage and current configurations. Storing a Preset (M1–M9) Up Arrow (▲) : Increases the selected numerical value
Below is a detailed guide on how to operate, configure, and maintain your BST900W module. 1. Technical Specifications
What are you trying to power or charge? (e.g., a 48V e-bike battery, high-voltage LEDs)