Victron Energy LiFePO4 12,8V 50Ah Smart

Victron Energy Lithium Battery Smart batteries are Lithium Iron Phosphate (LiFePO4) batteries and are available in 12.8 V or 25.6
V in various capacities. They can be connected in series, parallel and series/parallel so that a battery bank can be built for system
voltages of 12 V, 24 V or 48 V.