The PowerOak PS1 54,000 mAh is a portable generator that you can use to charge all your electronics on vacation, for example. Charge your laptop 4 times and your phone on average 15 times. The PS1 has a large AC port with 230 volts for devices with a plug, such as a lamp or fan. In addition, there is a DC port, 2 usb a ports and a usb c port for your laptop, smartphone, camera and / or smartwatch. You also charge these devices at the highest possible speed, because one of the usb a ports is a Quick Charge 3.0 port (for Android devices) and the usb c port is a PowerDelivery 2.0 port (for Apple products). The PS1 itself can be charged via the socket, your car or even a solar panel (not included).