Trickle Charging Mode Get optimal charging for low-power devices like earbuds, Bluetooth speakers, and other accessories. Ultra-Large Capacity Easily power all your essential devices wherever you go with a 20,000mAh battery capacity. Charge your iPhone 13 over 4 times or Galaxy S22 Ultra over 3 times. Wide Compatibility Works flawlessly with a wide range of mobile devices including phones, tablets, and more. Charge 3 Devices Simultaneously Charge your phone, tablet, earbuds, or Apple Watch all at once from a single power bank. Comprehensive Safety Anker’s MultiProtect safety system combines advanced temperature control, overcharge protection, short-circuit protection, and a fire-resistant casing to ensure complete protection for you and your devices. Built for Speed 20W Fast Charging lets you charge your iPhone 13 to 50% in 37 minutes. Notes: USB-C to Lightning cable not included. Apple Watch cable not included. Not compatible with MacBook Pro 13" (2019) and MacBook Pro 16".