It's great to have a battery bank that allows you to charge your smartphone 8 or 9 times before you get anywhere near a power socket, but how often do you actually need to do that? Odds are your life that is free of charge, and a huge capacity model is overkill. Try one of these pocket-friendly models instead.
Each battery bank is small enough for you to put in your pocket or hold easily in your hand. It is likely that you already carry plenty of different things, so who wants extra weight of a massive 20,000 mAh battery? That's why all of the ones here are also lightweight so it won't pull your bag or pocket down too much. Now these battery banks are like feature of some of their big cousins - there's no room here for Qi or a bevy of ports ̵
Best Overall: Anchor PowerCore + Mini ($ 20)
Where there's a need for a third-party accessory, anchor generally has things covered. That is the case with the Anker PowerCore + Mini. A lipstick-sized portable charger, it recharges in about 3-4 hours using the included micro USB cable. With a capacity of 3350mAh, it has enough juice for over one charge of an iPhone 8 or at least 80% to the Galaxy S8 or similar. The single port outputs at 1A, so don't expect fast charging and it's not ideal for tablet use. [Formoreusersthat'sgoingtobeplentytogetthroughthedayItsmeasurementsaremorethan37x09x09inchesandtheonlyweighs28ozyouhardlynoticeitinyourpocketorbagIt'sanidealfallbackplan
Most Power On A Budget: PowerAdd Slim 2 ($ 13)
For a higher capacity version of the Anchor PowerCore + Mini, the PowerAdd Slim 2 is A good alternative, albeit at a price. It has a capacity of 5000mAh working out at almost a third more than the Anker option, but it weighs more and is a little bulkier. It's still lipstick-shaped but it measures 3.9 x 1.3 x 1.2 inches which may vary depending on how little storage space you have. Plus, the weighs in at 4.16oz although that's not a substantial increase.
If you're fine with a little more bulk then you'll be more than happy with the PowerAdd Slim 2. It recharges in about 3-4 hours , identifies the charging requirements of your devices, and, with 2.1A output, as well as smartphones.
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Sure, there's only a buck between the PowerAdd and the RAVPower Luster Mini, but if you are on a tight budget and you want something a little lighter, the RAVPower is the device for you. It measures 4.8 x 2.8 x 1.5 inches so there is no lot between the two, however the weighs during 3 ounces which is ideal if every ounce counts.
For that size, you get about the same amount of juice as the anchor option —3350mAh which means just about one full charge of your smartphone but with only 1A of output on the port it's not recommended for tablet use. Like the others, the car detects the device you hook up to it so there's no risk of it running into problems or slowdown here. A series of LED buttons keeps you informed on how the charge is going too. It's sleek and convenient
Best Premium Option: Anchor PowerCore 5000 ($ 22)
Spend a little more on an ultra-compact battery bank, and you can enjoy the Anker PowerCore 5000. As the name suggests, it has a 5000mAh capacity so it easily charges an iPhone 6s twice or a Samsung S6 once. The device is larger than some other options, measuring 4.2 x 1.3 x 1.3 inches but it is still pretty good with tablets and 2.1A output.
discreet. It also weighs slightly more at 4.8oz but that's hardly going to be an issue for many.
If you need more power for your money, and you want to stick with a well-respected name, this is the battery bank for you
Best iPhone Only Solution: iWALK Portable Charger with Built in Plug ($ 20)
has a built-in Lightning plug. It measures a more 2.8 x 1.5 x 0.9 inches and only weighs 2.7 ounces so it's hardly noticeable in your bag. It works with any iPhone or iPod so it's quite convenient for Apple fans. You can still use it while it's plugged in.