
Mophie recently announced the launch of its largest battery pack yet, the Powerstation 3XL, which is designed for charging Apple's line of MacBook and MacBook Air devices.
The Powerstation 3XL features a 26,000mAh capacity and 45 watts of power, making it ideal for charging devices that include the iPhone, iPad Pro, 12-inch MacBook, and new MacBook Air.

As you might expect with a 26,000mAh device, the Powerstation 3XL is not a small, pocket-sized charger. It's 6.6 inches long and 3.7 inches wide, plus nearly an inch thick.
You can fit this into a bag or backpack without much trouble, but it is bigger than even Apple's largest iPhone, the XS Max. The Powerstation 3XL weighs more than a pound (18 ounces), and it feels like a heavy, sturdy accessory.
The charger is made from a black plastic material that's covered in a soft, tweed material that makes it easy to grip and adds some flair. Design wise, this is a high-quality charger that looks like it's expensive, which it should, because Mophie is charging $200.

At the bottom of the Powerstation 3XL, there are two USB-C ports, one for plugging into USB-C accessories like the MacBook Air or MacBook, and one for charging the power bank with a USB-C cable. You can tell the two ports apart by a little line and a lightning bolt that indicates which side is used for which.
There's also a USB-A port next to the USB-C charging port so you can also charge USB-A accessories. In total, you can charge one device using the USB-C port and one device using the USB-A port at once, and if you plug in a USB-C cable and a power adapter, you can charge the Powerstation and your devices with passthrough charging.

Mophie says the Powerstation 3XL has a Priority+ charging feature that will provide power to your devices connected to it via USB-C or USB-A before charging the power bank itself, so if you leave the whole shebang plugged in, your devices will charge and then the Powerstation 3XL will charge. I tested this feature out and did indeed see the Powerstation providing power to my iPhone and iPad before charging itself.
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Article Link: Review: Mophie's USB-C Equipped 26,000mAh Powerstation 3XL Has Enough Juice to Charge Your MacBook or MacBook Air