【20,000 m - Ah Large Capacity】4smarts's laptop power bank buit in a massive capacity battery, you can keep multiple devices charged for days. Charge an i - Phone 15 more than 3.5 times, a Galaxy S23 2.7 times, a Steam Deck 2.4 times, and a MacBook Pro 16 0.6 times.—ideal for a weekend getaway. 【Two-way Fast Charging】Crafted with 2 PD USB-C ports and 2 USB-A ports, which total power output going up to 122.5W! Easily recharge this 20,000mAh power bank in 2 hours with a 45W PD charger (not included). Meanwhile, the built-in chip technology keeps your devices safe from overheat, short-circuit, and over discharging. Automatically allocates the optimal power to devices being charged. (Note: Either USB-C1/C2 has a maximum output of 100W while USB-A1/2 has a maximum output of 22.5W.) 【Slim & Lightweight Design】This portable laptop charger power bank only 0.7 inches ultra-slim finish, thinner than traditional charger adapter so that you can put into your laptop bag when you go outside. The storage bag keep it from losing and rubbing. 【Wide Compatibility】This 20000mAh portable charger bank delivers the fastest possible charge to laptops, phones, tablets, and a wide variety of USB devices. Such as MacBook Pro, MacBook Air, HP Spectre, Dell XPS 15/13, Google Pixelbook, i - Pad Pro series, i - Phone 15/i - Phone 15 Plus/i - Phone 15 Pro/i - Phone 15 Pro Max, i - Phone 14/13/12/11 series, Galaxy S23+/S22/S21+/S20/ Note series, Switch, Steam Deck, Airpods/Apple watch and more.( Note: For the first usage after receiving it, please drain the power bank first and then fully recharge it without interruption. ) 【What You Get】This package consists a 4smarts Power Bank (125.5W 20000 m Total power output going up to 122.5W! Meanwhile, it is easily recharge this 20,000mAh power bank in 2 hours with a 45W PD charger. Slim and lightweight enough to on the go. Compatible with laptop, cell phone, tablet and other USB-C/A devices.