Some power banks come with a built in USB-C cord, but this Anker comes with a two-prong power outlet plug. With 10,000mAh of power inside, the Baseus Airpow can charge an iPhone 15 once to 100% then once again to nearly full. Smart IQ Smart Charging technology provides ultra-fast charging for smartphones, tablets, MP3 players, cameras and other mobile devices on the market.

If you carry a water bottle everywhere, and you also need a spare battery, why not carry both in one device? You want a portable StandBy dock: If you have an iPhone 12 or newer running iOS 17, you can use the Baseus Magnetic Foldable as a dock for your iPhone in StandBy mode, giving you a cool desk clock with notifications or a digital photo frame. With power banks and other types of batteries, the first thing you need to worry about in terms of wattage is the watt-hour.To juice up your portable charger, simply connect it to an external power source like a wall socket, just like you would with your devices. All of the power banks on this list passed our testing, traveling with us on the road and powering our devices at home.

When charging Xiaomi series, the USB-A port can generally reach 27W extremely fast charging, and the USB-C port can reach 16W fast charging. The display on our best battery for power users is bright and sharp OLED display, totally unnecessary for a power bank, but that's what makes Anker the best.

This USB C Power Bank support discharge while charging, but if output is higher than input, the power bank will activate the auto switch-off protection to protect itself. Rules for their use, along with information on setting cookies in web browsers, are described in detail in the Cookies policy. 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.

The lifespan of a power bank may vary depending on various factors, such as quality, build, battery capacity, type of battery, and how the power bank is used.On the other hand, you can charge the battery and three devices in a wall, then simply remove the Anker 733 and keep charging those devices with the built-in battery. The process is really quite simple and consists of 3 parts: energy absorption, energy storage, and energy release. So, if you used a dual 45W power bank, you might expect the energy output to reach up to 45W when used as a charging station from an external source and up to 30W when used as a standalone power bank.

A3: Yes, it can charge low-power devices such as earphones, but it needs to be switched on manually when using this mode. Admittedly, making a battery that also fills up with water is a quick way to make a heavy battery, so we won't knock Tylt for being a heavy power bank. We wish there wasn't such an easy answer to this question, because competition is better for everybody, but Anker is making the best power banks right now by far. A battery maker will claim between 60% and 70% efficiency, so that 10,000mAh battery will only give your phone around 6,000mAh of extra battery charge, at the least.We've only included wired power banks on this list that can charge at newer speeds, though wireless charging is more about convenience than speed, so some of our wireless power bank favorites are still a bit slow on the charge. Equipped with cutting-edge technology, the Baseus Bipow boasts an impressive energy conversion rate of ≥75%, maximizing efficiency while charging your devices. Apple doesn't publish its battery capacity, but teardowns have shown that the iPhone 15 has a battery with around 3,350mAh of battery life. I've looked high and low and this powerbank and a 20,000mah Baseus are the only powerbanks still sold that I can find that support 21W+ 12V QC modes. These types of power banks hold plenty of energy to guarantee 1 or 2 full charges to your smartphone without needing to be recharged.