The Satechi Quatro Wireless Power Bank has a 10,000mAh battery and four ways to charge:

• Qi wireless pad: up to 5W.
• Apple Watch module: 2.5W.
• USB-C Power Delivery (PD) port: up to 18W, for charging your devices and for recharging the power bank.
• USB-A port: up to 12W.

You can charge up to three devices at the same time. To recharge the power bank itself, use a USB-C wall adapter rated at 18W or higher.