Cheap power banks die after a few months or charge so slowly you’re still stuck glued to walls for several hours. The Anker Zolo power bank provides legitimate 30W fast charging to rival wall outlets, yet still brings the same durability Anker has built a name on. Amazon just dropped it to an all-time low of $19 for Black Friday, down from the usual $25.
You get here 10,000mAh capacity good for two full iPhone charges, a baked-in USB-C cable tested for 10,000 bends and bidirectional charging that tops up the power bank itself in reasonable time.
30W Charging That Matches Your Wall Charger
The output of 30W gives double the charging speed of the conventional power banks-5V/3A-that crawl at 15W. Your iPhone 16 Pro Max hits 50% in just 27 minutes, matching what you’d get from plugging into a wall outlet with Apple’s fast charger. Conventional power banks take more than an hour to reach the same charge level, which makes using them an exercise in frustration for a quick top-up between meetings or during short breaks.
The 10,000mAh capacity will yield nearly two full charges for an iPhone 17, 1.94 charges for a Samsung Galaxy S25, and two full charges for an iPhone 14 Pro before recharging the power bank. You should be able to make it through long days of traveling, outdoor activities, or power outages without feeling anxious that your phone is going to die on you. The capacity also delivers about 10 full charges for the AirPods Pro 3 and keeps your earbuds powered for weeks of commutes.
Eliminate the frustration of forgetting charging cables at home or digging through bags to find them with the 5.4-inch-long built-in USB-C cable. It’s attached to the power bank and is ready whenever you need it. Anker tested this cable through 10,000 bend cycles and they ensure the cable survives wrapping, twisting, or stuffing into a pocket thousands of times.
Bidirectional 30W charging means the power bank recharges quickly through the same USB-C port it uses to charge your devices. The 20W input fills the battery much faster than older power banks that take six hours to recharge from empty. You can top up the power bank during lunch breaks or short charging windows rather than leaving it plugged in overnight. The convenience of fast recharging makes the power bank practical for daily use rather than something you charge once weekly.
The compact 4.32 x 2.58 x 0.98-inch dimensions slip easily into pockets, purses, or laptop bags without creating noticeable bulk. The power bank weighs less than your phone, making it comfortable to carry on any commute or travel.
Additional USB-C and USB-A ports allow you to charge multiple devices at the same time using your own cables. The USB-A port remains compatible with older devices and accessories that haven’t transitioned over to USB-C. You can also charge your phone via the built-in cable while powering earbuds or a smartwatch through the extra ports. This multi-device capability proves useful when traveling with a lot of gadgets.
Anker backs the power bank with an 18-month warranty to cover defects and performance issues. The company’s customer service responds rapidly to problems, normally replacing faulty units with minimal hassle. This value-added support comes into play well beyond the price paid, since you are covered when problems crop up.
At $19, this 10,000mAh power bank offers 30W fast charging with a rugged built-in cable for well below the competition, which usually carries worse specs at higher prices.
