20 Nickel Iron NiFe Cells CIYI CYNF600 600Ah 1.2V 12V/24V Off-Grid Solar Complet
CIYI CYNF600 nickel-iron (Ni-Fe) cells, 600Ah at 1.2V each. Edison-style chemistry, the kind off-gridders seek out because it shrugs off the abuse that kills lead-acid and lithium. 10 cells in series = 12V, 600Ah (about 7.2 kWh nominal).