Wide Compatibility Supports 320S lithium batteries, 424S LiFePO4 batteries, and 12V84V leadacid batteries. Clear LCD Display Backlit digital LCD and reinforced acrylic waterproof screen show realtime voltage and remaining capacity for easy monitoring of battery status. Low Voltage Alarm Alerts when battery level drops below 10 percent with a flashing battery icon to guarantee timely charging and prevent overdischarge. Energy Efficient and Memory Function Consumes less than 15 mA in normal mode and under 1 mA in sleep mode. Retains settings after poweroff for hassle use. Applications Solar and offgrid power systems: ideal for monitoring Liion or LiFePO4 packs in 320S or 424S configurations. Marine, RV, and automotive battery banks: suitable for 12V84V leadacid systems, with a low voltage alert to prevent deep discharge. Portable power setups and workshops: supports multichemistry installations with easy status checks and memorypreserving operation.