Medium capacity power banks—best for multiple smartphone recharges or tablets—range from 6000mAh to 15000mAh. High-capacity power banks—best for extended travel or computers—range from 16000mAh to 30000mAh and above. Power output determines the overall power of your portable battery pack.
For those times you need heavy-duty power—from long road trips to prolonged outages to charging a computer back to full power—a high-capacity battery pack is a must. The INIU 25,000 mAH can charge just about any device for several days.
Iniu B61 10000mAh If you need more power than the Anker Nano provides, this Iniu B61 10000mAh packs enough juice to charge an iPhone more than once, and it's small enough to slip into a front pocket without much bulge. It's also a great price for such a sleek little battery pack. 6. Anker MagGo Power Bank (10K)
Best Buy customers often prefer the following products when searching for large battery packs. If you're a frequent traveler, a power user, or just someone who likes to have the latest gadgets available at all times, you know how important it is to have a large battery pack handy.
Other portable batteries on this list can keep your phone going longer, but none are as convenient. With a 10,000mAh battery, dual 20W USB-C PD outputs for charging two devices at once, and five color options, the Nimble Champ offers convenience and portability in an attractive package.
Anker is a trusted name for portable battery chargers, and this particular option offers it all. First, you get a lovely capacity of 25600mAh, which is more than enough to recharge your smartphone multiple times. This upgraded version of the power bank comes with four USB ports, including two USB-C ports and two USB-A ports.