VMAX LFP22-1255 Nominal Voltage 12.8V 55Ah Lithium Deep Cycle Marine Battery Compatible with Minn Kota Terrova 55 Nominal Voltage 12.8V 50LB Trolling Motor LiFePO4 BMS - Walmart.com
Beginner's guide to 18650 battery with easy-to-understand illustration - SkyGenius Online