FuelZero 12v 21AH LIFEPO4 Battery
Main Features:

• 12 volt Operation
• 21 Amp Hour Capacity
• Supports 30 Amp continuous Current Draw
• Built-in BMS (Battery Management System)
• Built-in Cell Balancing
• Dimensions: L=8.1" W=4.4" H=3.0"
• 3 Year Warranty