You're trying to keep it simple: The Baseus Airpow doesn't have any built in wires or wireless charging, so you'll need to carry extras when it's time to power up. We find that medium power banks, around 10,000mAh, tend to deliver the best balance of portability and capacity. In our tests, they’re also more likely to live up to their claimed capacity. They tend to have multiple ports for charging more than one device at once, and enough energy to charge two smartphones. A Best Buy medium power bank is a great all-rounder. Power bank capacity: generally speaking, the more capacity a power bank has, the longer it will take for it to charge. So you can expect to reach a full charge much slower for a 72000mAh power bank for example, compared to a 5000mAh power bank. However, the difference between the charging time of these different capacities can be influenced by the next factor:

It has three PD 3.1 fast-charging USB-C outlets to take care of everything from the Apple Watch to the new 16-inch MacBook Pro. There is also a USB-A 140W charger below this. A small button on top releases the India pin and reveals the US pin in case you are travelling. But yes, the wall charger is a bit on the larger side given the range of stuff it has to do, and a bit heavy as well. But then this is also the only charger you will need to carry with you. This handy gadget has three PD 3.1 fast-charging USB-C outlets. (Image: Nandagopal Rajan/The Indian Express) Need to keep tabs on your usage? We also have models with LED displays to show you how much power is remaining. 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. The most important thing to do is to match the battery’s output to your phone’s input. For example, if you have an iPhone, be sure the battery has its own Lightning connector or supports USB-A-to-Lightning or USB-C-to-Lightning cables.The iPhone 15 Pro is a powerful smartphone with a long battery life, but even the best batteries can run out of juice. That’s where a power bank comes into the mix. These portable chargers can be used to charge your iPhone 15 Pro on the go. But with so many options to choose from, what are the best power banks for the iPhone 15 Pro? There are also cool additional features to consider. Our favorite power bank has a built in charging plug so it can go right into a wall outlet. Some power banks have data about your charging devices. Some are just super small and cute. Which power bank is the best quality? Finding the right charger capacity: You'll often see a four to five-digit number, with the letters mAh following it, and that's your first big indicator of how much this charger is right for you. If you're constantly refueling your phone and other gadgets, go for at least 10,000mAh. For each extra device you charge, add at least 5,000 to the mAh rating you're looking for. Just need to prevent your device from hitting 0 on late nights out? You'll be good with something in the under 5,000 mAh rating, provided you remember to charge it often. Milliampere hours (mAh) is a widely-used measurement for stating the power capacity of a battery. Apple doesn't give official figures for the capacities of the rechargeable batteries that it puts in its iPhones, but according to Phone Arena the industry-accepted figures are:

First, let’s talk about the power bank charging speed. The 30W Dart power bank takes 90-100 minutes to charge from 0 to full, which is quite impressive and unseen till date on a power bank. To achieve this changing speed, you will have to use the provided cable or any Type-C cable that is capable of charging at 30W speed. Pre-charge level: If you charge your power bank when it’s 20% full, it will obviously take less time than charging it from 0%. Also, it’s generally recommended not to leave a power bank discharge to 0% on a regular basis, as it can affect the battery life in the long run. The Anker 525 features a PowerIQ USB-A port for fast charging all your devices and other equipment. As for the iPhone 15 Pro, the power bank comes with a USB Type-C port, which supports 20W of USB Power Delivery. It also has a capacity of 20,000mAh, which is enough to charge your iPhone 15 Pro up to 5 times. Additionally, the device also gets an LED indicator, which displays the remaining power and charging status of the power bank.

What are the best power banks to buy right now?

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. The three basic rules that have kept me safe (thus far) through testing dozens and dozens of batteries are: 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 can buy the Tylt Bottle with just a power bank attached, but our review sample from AT&T had the full wireless charging treatment. It's easy to set up a phone to charge while studying, working out, or working away from home: all places we take a water bottle and need a full phone battery. Large power banks are perfect for heavy-duty use. That could mean charging a single smartphone over a week in the wilderness, or keeping your whole family’s devices alive on long journeys or days out. But aside from their bulk, they also take a long time to recharge. We’ve seen models that take as long as 14 hours to fully recharge, while others take less than 10, so it pays to do your research before you buy.

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.Brand Reliability: When it comes to portable power banks, it's essential to choose a trustworthy brand. Brands like Anker have a solid reputation for producing safe and high-quality products, ensuring your devices are charged efficiently and without any risks. At the price of Rs 1,999, the Realme Dart Charge power bank will not win any prizes for its capacity. However, its charging speeds are currently unparalleled, even without considering the price. If you use a supported device, it’s a no-brainer. Many years ago, the Samsung Galaxy Note 7 gained notoriety when its batteries caught fire in a series of incidents. There's been a steady stream of similar, though isolated, incidents ever since. However, despite the high-profile coverage of batteries gone wrong, the vast majority of Li-ion batteries are safe. 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: 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.