A solar power bank uses integrated solar panels to recharge its lithium-ion battery, providing users with a convenient way to charge mobile devices using renewable energy. Many solar power banks feature high capacity batteries ranging from 5,000mAh to 30,000mAh that can charge smartphones, tablets, and other electronics multiple times on a single charge. https://www.marketwebjournal.com/solar-power-bank-market-size-and-share-analysis/