Bst900w Manual Jun 2026

At high loads (above 500W or 10A), the onboard fan should be active. Ensure there is plenty of airflow around the heatsinks.

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| Symbol / Label | Meaning | Action if abnormal | | :--- | :--- | :--- | | | Remaining capacity (5 bars = 100%) | Recharge when down to 1 bar. | | Input voltage (e.g., 12.6V) | Voltage from battery/solar panel | Below 11V triggers low-voltage alarm. | | Output wattage (e.g., 350W) | Real-time AC load | If > 900W, overload protection trips. | | Fan icon (spinning) | Cooling fan active | Normal. If fan doesn't spin at high load, stop use. | | Temperature symbol | Internal temperature | Flashing red = overheating. Reduce load. | | USB icon | USB ports enabled | Press "USB" button if missing. | | AC icon | Inverter active | Flashing = overload or short circuit. | At high loads (above 500W or 10A), the