You need at least 12 x 12V 200Ah AGM batteries to obtain 4800Wh of usable energy for 9 years
This means you can charge the battery directly from 0℃ to 50℃ without heat
while AGM batteries only last 3 years and have a cycle count of 200-500
In the new version
you may have to wait until the end 2-3 rocks
Redodo 12V 20Ah LiFePO4 Batterie Number:1 Pack You need at least 12Lightweight & Compact designRedodo 12V 20Ah LiFePO4 The battery measures 181 mm long, 77 mm wide, and 170 mm high and weighs 2. 2 kg. It is the ideal choice for a compact and lightweight power source. Versatile applicationsIdeal for fish finders, ice fishing, electric fishing reels, lighting, camping, amateur radio, motorized toy cars and more. BMS protection20A BMS provides protection against overheating, short circuit, Overload, overcurrent and