But here's the kicker: top-performing outdoor power supplies can retain over 80% value after 3 years of regular use. We analyzed 32 brands and 18,000 eBay transactions to bring you this definitive guide. Traditional lead-acid models? They're tanking faster than a melted ice chest. ” – Renewable Energy Project Manager The market for portable power stations. . The U. The growing demand for landscaping services among American households and commercial establishments is a major factor driving industry growth. The. . Outdoor Power Supply by Application (Online Sales, Offline Sales), by Types (Below 500wh, 500 to 1000wh, Above 1000wh), by North America (United States, Canada, Mexico), by South America (Brazil, Argentina, Rest of South America), by Europe (United Kingdom, Germany, France, Italy, Spain, Russia. . The global outdoor power supply market size is estimated at USD 4. 94 Billion by 2035, experiencing a CAGR of 32% during the forecast from 2026 to 2035. And, unlike gas generators, power stations don't emit potentially lethal carbon monoxide fumes and can be recharged with optional solar. .