Thanks to community member GreyString8671 for sharing this deal.

Features:

• Bluetooth 5.0 real-time monitoring lets you check battery voltage, current, capacity, and remaining life from your phone.
• Compact and lightweight: measures L13 × W6.9 × H8.5 inches, weighs only 34.61 lbs
• Low-temperature protection: charging is automatically cut off below -7°C (19.4°F) to prevent cell damage, ideal for winter and cold environments.
• Integrated 120A Battery Management System (BMS) protects against overcharge, over-discharge, overcurrent, short circuit, and temperature extremes.
• Supports 4S4P configuration, expandable from 1.92kWh up to 30.72kWh for custom battery systems; easy troubleshooting via mobile app.
• Suitable for RVs, cabins, off-grid, marine, camping, solar, and home energy storage-especially in cold climates.