The author lived for 19 months in a Daihatsu Move, using an EcoFlowⓘ RIVER2 portable power station with a 256Wh capacity and 300W output (450W in X-BOOST mode). The device was mainly used to charge a smartphone, laptop, fan, and jump starter. The limited capacity was insufficient for powering more energy-intensive appliances, restricting cooking and work capabilities. The power station was purchased for about 20,000 yen.