A confluence of lower-power appliances and devices using low-voltage external switch-mode supplies, readily available solar panels and electronic modules, and inexpensive high-capacity batteries ...

battery with use cases in off-grid solar, tiny homes, and RVs. The battery comes in 24V or 48V designs, with 60Ah and 30Ah-rated capacities, respectively. It has a nominal energy rating of 1.54 kWh.