The Surface Pro 7 as well as other Surface devices can be folded easily and beat any laptop in terms of weight. One problem with having a powerful processor and bright 400 nits display in a light tablet like form-factor is that the battery size is small. However, the good thing is that the Surface Pro 7 can be charged via the USB-C port and supports USB-C Power Delivery. As almost Samsung and other Android phones, as well as iPhones, iPad Pro, and iPad Air also support USB-C charging, one can use same chargers for Surface Pro 7 as for phones.

Microsoft Surface Pro 7 also has the Surface Connect port for charging. To charge on-the-go, you can also use a USB-C Power Delivery power bank. This means you can use the same portable charger for Surface 7 as for your phone.
A decent power bank for Surface Pro 7 should charge it about once. The Surface Pro 7 has a 46.5Wh battery, which means that a 20,000 mAH is the minimum battery capacity for any power bank to charge it fully once. As Surface Pro 7 support USB-C Power Delivery, power banks with 30 watts or higher USB-C PD will be perfect for it.
Best Power bank for Microsoft Surface Pro 7, iPad Air, iPad Pro, iPhones, & Samsung phones
Anker PowerCore 25600 45-watt USB-C PD

The Anker PowerCore 25600 45-watt USB-C PD is our top choice for the Surface Pro 7. A 25,600 mAh power bank can be carried around on flights in cabin and is adequate for charging the Surface pro 7 once and still charge a phone once. is a lot of power to use. The Anker PowerCore 25600 45-watt USB-C PD power bank can charge iPhone 13/12 series phones or the Samsung S22/S21 series fully about four to five times.
The Anker PowerCore 25600 45-watt USB-C PD has 3 ports in all – a 45W USB-C Power Delivery port and two Quick Charge 3.0 USB-A ports. This means it can charge three devices to full power simultaneously at same time.
The power bank itself can be recharged at 60W with a USb-C PD wall charger. The Anker PowerCore 25600 45-watt USB-C PD comes with a 65-watt PPS USB-C PD charger, and a USB-C to USB-C cable.The included charger can charge it fully in just 4 hours.
Best Portable Charger for Surface Pro 7, iPad Pro, iPad Air iPhones, & Samsung phones
ZMI Powerpack Pro 65-watt Power Bank

This is yet another stellar portable charger from ZMI, a premium power bank maker, that ticks all the boxes in terms of power output, features, and build quality. If you’re looking for a power bank with excellent quality and best features but at a lower price than Anker or premium power banks like Omni then ZMI Powerpack Pro 65-watt Power Bank is a pretty good option. The power bank has a 20,100mAh power capacity, and a maximum output of 65 watts – adequate for Surface Pro 7. It will charge it fully a single time.
Alternatively, you can charge your iPhone 13/12 or S22/S21 about three to four times with ZMI Powerpack Pro 65-watt Power Bank.
The portable charger has a USB-C Power Delivery port with 65W charging speed, and two standard USB-A port with 12W charging speed.
You can recharge ZMI Powerpack Pro 65-watt Power Bank at 45W using the Surface Pro 7 charger or any other USB-C charger.