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The best battery packs you can buy

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Steve Coogan. Rugby Union. Motor racing. US sports. Rugby League. Geoffrey Macnab. Tech news. Tech culture. News videos. Explainer videos. Sport videos. Money transfers. Health insurance. Money Deals. The Independent Books. Voucher Codes. Subscription offers. Portable battery packs are the perfect solution to your charging woes. They come in all different shapes and sizes, and some of them even do double duty as a flashlight or car jump starter.

We've used dozens of battery packs over the years, and it's hard to narrow down the best ones because there are so many great ones. The battery packs we've chosen are the cream of the crop in terms of functionality, style, and price. The first thing you need to know is what charger your phone uses. All you need is the charging cable for your phone that can plug into a USB-A outlet adapter. There are also battery packs with integrated cables built in, but we'll discuss that further below. Based on research and testing, we've come up with a full guide to the best battery packs you can buy.

We have battery packs for people who want portability, tons of battery, integrated cables, cheaper options, and a battery pack that doubles as a car jump starter. Here are our picks:. Removed out of stock products. The Jackery Bolt has two cables integrated into its design, so you can charge two devices with different charging ports at the same time without bringing your cables with you.

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It even has a built-in flashlight. In other words, this battery pack does it all.

The battery pack supports Quick Charge tech, too, with up to 2. The battery packs themselves juice up with a Micro USB cable, which is included in the box.

The best slim battery pack

User reviews on Amazon are positive, and The Wirecutter declared the Jackery Bolt its winner for best everyday use. It's great that the Jackery comes with two integrated cables and the option to charge a third device with your own cable. Overall, the Jackery Bolt is our top pick because it's a versatile battery pack that will suit every type of user, and it's less expensive than other highly rated battery packs with multiple integrated charging cables. Some people don't want to carry around a bulky battery pack — even if it means getting only one extra charge out of it.

If you prioritize slimness over capacity, the 4,mAh Flux Portable Charger is the best one for you. Although it's super slim at a mere 7. There are also two cables integrated into the battery pack's design: It will charge most phones at least once, and some may get 1. The four tiny LED lights illuminate to tell you how much power you have left inside. If you need more capacity, Flux also makes a 10,mAh battery pack that's very slim. The Flux doesn't support Quick Charge tech, so it will take longer to juice up your devices, but it should charge smaller phones reasonably quickly.

It's as slim as your smartphone, includes lighting and Micro USB cables, fits anywhere, lightweight, and it'll charge your phone at least once. Sometimes you just need a ton of power. You can also charge multiple devices at the same time, and it has ports for every device. The battery pack comes with a month warranty, too, in case something goes wrong. Buyers on Amazon love the giant battery pack, and many seem to use it for traveling. Larger battery packs like this one are also very helpful if you live in an area where you may lose power from snowstorms or extreme weather.

It's available for a decent price, too. Supports Quick Charge 3. When you think about battery packs, the first name that comes to mind is likely Anker — and the company deserves that honor. We could have honestly chosen an Anker battery pack for almost every pick on our list. As it is, Anker offers the best Quick Charge battery packs you can buy, because these packs support Quick Charge 3.

The only downside is the lack of built-in cables. We recommend both the 20,mAh and 10,mAh battery packs for anyone who needs lots of extra juice and needs it fast. Quick Charge 3. The packs are also high capacity, so you can charge an iPhone 7 about seven times or charge a Galaxy S8 five times with the 20,mAh battery pack.

If you're curious what the 10,mAh battery pack can handle, it's exactly half of that.