Amazon.com : Anker Portable Power Station, PowerHouse II 400, 300W/388.8Wh, 110V AC Outlet/60W USB-C Power Delivery Solar Generator for Camping, Road Trips, Emergency Power, and More : Patio, Lawn & Garden,Amazon.com: Anker Portable Generator 778Wh, 545 Portable Power Station ( PowerHouse 778Wh), 500W Outdoor Generator with 110V 2-AC Outlets, 2X 60W PD Outputs and LED Light for RV, Camping, Emergencies, and More :,I tried using the portable power supply 'Anker PowerHouse II 800' that can output up to 11 units at the same time with a battery capacity of 216,000 mAh - GIGAZINE,Amazon.com : Anker 521 Portable Power Station Upgraded with LiFePO4 Battery, 256Wh 6-Port PowerHouse, 300W (Peak 600W) Solar Generator (Solar Panel ,I tried using an ultra-large capacity outdoor battery 'Anker PowerHouse II 400' that can charge eight devices at the same time with a maximum output of 516 W - GIGAZINE,