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This digital low voltage protection module is designed to safeguard various rechargeable batteries. It features precise voltage detection and automatic power cut-off when battery voltage drops below preset value, avoiding deep discharge that shortens battery service life. Built-in digital screen shows real-time voltage data for easy status checking. Compatible with most common lithium batteries and lead-acid batteries within 12V-36V range. Simple connection and stable working performance, widely applied in solar power system, car battery, portable power station and other battery powered equipment.