If Foster Sylvers was thinking about portable batteries when he sang those lyrics, the word he might use to describe them is “hefty.” Power banks like mophie powerstation xxl pack a lot of energy into a small form factor. The 20,000mAh power bank can fully charge an iPhone XS Max more than four times and has a USB-C PD port to charge itself and connected devices in record time.
The design isn’t trying to be fashionable; it’s a simple rectangle with an aluminum top and bottom and sturdy plastic rim around all the edges. The power button is on the top and indicator lights are visible when it’s charging or at capacity. The two USB-A ports are rated for 2.1A and one is a charge-through port that charges a device first and then recharges the powerbank itself. That’s a nice feature and something you may want to set up on overnight so that when you wake up, you have a full battery.
The USB-C PD port can provide 18W of power so you can get a high-speed charge from most phones with Quick Charge 4 or higher and the latest Android devices that support the protocol. There’s also a standard 2.4A USB-A port that delivers the slower but still very fast power you need for older phones and tablets.