12V 20Ah Battery, Sealed Lead Acid battery (AGM), battery-direct SBYH-AGM-12-20, 181x77x167 mm (LxWxH), Terminal B1 (Fitting M5 bolt and nut)
Amazon.com: ECO-WORTHY 12V 20Ah Lithium Battery, 3000+ Deep Cycle Rechargeable LiFePO4 Lithium Ion Phosphate Battery with BMS for Trolling Motor, Fish Finder, Kids Scooters, Power Wheels, Outdoor Camping : Automotive