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Everybody on our gift list who got a new iPhone is going to get an Anker Nano Power Bank (22.5W) this year. This cute little charger is perfectly sized to sit beneath your favorite smartphone, plugged into the USB-C port with a little plug that opens out or hides away for a sleek look. Surge protection, short circuit prevention, and more advanced safety features keep you and your devices safe. Step up from the budget power banks to the mighty Juice Powerbank Max and you get a much more capable mobile charger, with a 20,000mAh capacity and a 20W USB PD output over USB-C. We measured the USB-A output at nearly 15W in our tests, which recharged our smartphone by 18% in 15 minutes. With USB-C, that output rose to just over 19W, which was good for a 22% recharge in 15 minutes. That’s not bad at all for an affordable power bank, and we also found it usable for charging tablets and even a Chromebook laptop, albeit at a slower-than-usual speed.
The Anker Nano is only 5,000mAh, but that doesn't mean it can fully charge a 5,000mAh phone battery like you'll find in the Galaxy S23 Ultra. Power banks are about 60-70% efficient, depending on the phone's technology, so this power bank is good for charging an iPhone 15 to nearly full, but that big Ultra will only get about 65% charge. We'd recommend avoiding anything below 5,000mAh, though, as they'll barely recharge today's smartphones. Look for between 5,000 and 10,000mAh. Have you ever experienced the panic of seeing your phone battery drain to 1% while you're in the middle of a road trip or a day-long adventure? I certainly have! But fear no more, my fellow adventurers, for I have discovered the ultimate solution: the Anker Portable Charger, 313 Power Bank (PowerCore Slim 10K)! Strength of Magnets: Ensure that the power bank has strong magnets to securely attach it to your device during charging.
The best portable chargers for most users
A typical smartphone has a battery capacity of under 4,000 mAh. Therefore, a power bank with a 10,000 mAh capacity (real capacity 6,000–7,000 mAh) can charge the majority of smartphones at least two times to 100% capacity. The tradeoff is that power banks this size typically weigh more and are bigger than your phone. When it comes to purchasing a power bank, there are a few important factors to consider. Let's dive into them: Generally, power bank capacity is measured in milliamps per hour — mAh. This unit indicates how many milliamps of electric current a given power bank can deliver per hour. Die Powerbank lädt meine Geräte schnell auf. Mein Smartphone war in kürzester Zeit wieder einsatzbereit, und die Powerbank selbst lädt auch erfreulich zügig auf. You don't need all those extras: The Anker Prime power bank is pricey, and if you don't care about monitoring charge Wattage or days of battery life, find another option.
Anything with 20,000mAh or above will charge your phone multiple times, and many can charge several devices at the same time. As such, they're usually larger, weightier and can be more expensive. The next standard portable power bank size is 20,000 mAh. Not all power banks in the 20k range will have a capacity of exactly 20,000 mAH — that’s just a handy benchmark figure. Naturally, 20k power banks are bigger and heavier than their 10k little siblings. Most 20k banks weigh at least one pound and are roughly the size of a small tablet or jumbo candy bar.Ich hatte bisher keinerlei Probleme mit dieser Powerbank. Sie hat meine Erwartungen in Bezug auf Zuverlässigkeit mehr als erfüllt. Egal, ob ich sie auf langen Reisen oder beim Camping dabei habe, sie hat mich nie im Stich gelassen. A small display screen keeps the user informed on outgoing wattage, remaining battery life, and more. It’s far more informative than the standard series of indicator lights that most small power banks have.
There are plenty of combination power bank and some other device, but the Tylt Bottle 2 actually makes sense because we're usually carrying an insulated water bottle anyway, so we might as well screw a battery onto the bottom. With a 5,700mAh capacity, the Tylt Bottle 2 is just enough to get us through a very busy day, or keep the phone powered while we play games at the cafe. Place your phone, earbuds, or other Qi device on the center of the pad to get a convenient wireless charge anywhere. That means I could twist my phone sideways into landscape mode and use the Baseus power bank as a portable stand for Apple's new StandBy mode, which is one of my favorite features on iOS 17, and certainly the one I use the most often. All power inputs and outputs on the Pro are hidden beneath a rugged mini door. A small LED flashlight sits next to the USB-A and USB-C ports. Four battery indicator lights relay the key information that users need.
The best portable chargers for more demanding users
Compatible with most USB-charged devices, including iPhone 8 / X / XS / XS Max / XR (Lightning cable required), Android smartphones and tablets (including the Nexus 7), USB-C MacBooks / iPad (USB A to C cable required).
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