The next question is how you want to charge your device. You can find a power bank that charges your phone (or even your Apple Watch) wirelessly. These will usually charge slower, but they can be very convenient if you want to leave wires at home. Our power banks come in a range of powers so you can keep connected whether you're needing to charge your phone or your tablet device.

Power Delivery is a newer protocol in which two compatible devices negotiate on the fastest charging option available based on the charger, cable, and circuitry. It also allows for power to flow both ways. When you're after a power bank for a camping trip or weekend getaway, or to power your Switch or laptop, you'll want something with a higher capacity. What’s more, we offer a range of attractive designs and colours, with our portable charging products manufactured by top brands like Cosmopolitan and Goodmans. You need power for your phone: The 3,000mAh battery inside is plenty to keep your Apple Watch going, but that isn't enough power to get you even halfway charged on an iPhone 15, and even less on bigger phones.

Belkin USB-C Portable Power Bank

We subject portable power bank chargers to a rigorous battery of tests to separate bold manufacturer claims from reality. So we know from experience that there's more to buying a power bank than reading the numbers and features on the box.

There are plenty of other power bank makers around, and most of them have not caught up to the faster charging speeds available on the iPhone 15 family, let along even faster Android phones. Except for unique form factors or serious bargains, we stayed away from recommending power banks from reputable makers if they couldn't charge at 2023 speeds.

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. If you're prone to forgetting your cable, some power banks can recharge your phone wirelessly. You'll just need to place the smartphone on the charger and press a button to start – you may have to reposition it to get perfect alignment, although there are magnetic models (more on those below) for the latest iPhones that'll always snap into the correct position. Magnetic power banks This feature requires a compatible USB-C cable to work. Some models with power delivery have been among the fastest we've tested, but some models without are just as fast. What else should I look out for when buying a power bank?

If you loved the clear craze that gave us a wave of translucent electronics in the 1990s, then you will immediately see the appeal of Shargeek’s power banks. A see-through case provides a clear view of the ports, chips, and bundled rechargeable Samsung Li-ion batteries inside this portable charger. The color display gives you a detailed readout of the voltage, current, and power flowing in or out of each port. If you dig into the menu, you can find stats showing temperature, cycles, and more. Congratulations on your new power bank! To ensure you get the most out of it, here's what you should do when you first buy one: That’s what this article is all about. In this post, we’ll take a look at some of the best power banks for the iPhone 15 Pro and Pro Max. Meanwhile, a 10,000mAh battery can give today’s flagships two full charges. A 20,000mAh battery can charge a flagship four times, or two phones two times. Some power banks have enough juice to power laptops. Of course, a higher capacity often translates to a heavier, larger, and more expensive battery.When you’re carrying a power bank, you can watch all of the content you want without worrying about your device running out of charge.

Nearly all batteries include a standard USB-A port (output). This is for plugging in USB-A-to-micro-USB, USB-A-to-Lightning, or USB-A-to-USB-C cables for charging your iPhone or Android device. It’s not the most efficient way to charge devices though, so it’s usually worth using a regular adaptor if you have time. Other power banks overpromise when it comes to the amount of charge they actually deliver. The worst we've tested only put out 77% of its stated mAh capacity. The best can sometimes actually deliver more than they claim. You need a lot of power: Thankfully, the battery on the Tylt Bottle 2 isn't so big it adds too much weight, but that also means it isn't powerful enough for multiple charges.

To calculate the mAh you’ll actually get when charging devices, multiply the claimed capacity by 3.7 then divide that figure by five (or whatever voltage you’ll be charging at). Some power banks come with a built-in output cable, which can’t be removed. This is usually an extra output, so it shouldn’t affect you if you plan to use other types of cable too. USB-A (output) For the latest iPhones (everything after the iPhone 7) you should buy a battery with at least a 5,000-mAh capacity, which should give you at least one full charge for a device. All of the models featured above hit that mark.