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A battery pack is one of the best ways to charge your phone in an emergency 5 Ways To Charge Your Phone In An Emergency 5 Ways To Charge Your Phone In An Emergency Smartphones can be important tools in an emergency. Besides providing the chance to call for help, a phone can act as a flashlight, compass and GPS. But all of a phone’s functions rely on the... Read More , but knowing which pack to buy isn’t that easy. If you need help, these portable power banks might be just what you need.

A Few Numbers Before We Start

Not everyone needs a high capacity battery pack, unless you want something that will charge both a phone and a tablet. Just for reference, the Samsung Galaxy S5 uses a 2,800 mAh battery while the iPhone 5s uses a 1,600 mAh battery. The iPad Mini with Retina Display packs a 6,500 mAh battery while the bigger iPad has an 11,600 mAh battery.

mAh denotes milliampere-hour, and is an important determine exactly which battery pack you should buy. Figure out your own needs in accordance with how much charge the battery pack offers and pick one accordingly. If you travel a lot, you might need a higher capacity power bank, which is bulky and expensive; but if you only need something to ensure you can juice up your phone’s battery is flat, then it would make sense to go with a lower capacity battery pack with a more pocketable design and is less expensive.

No matter which battery pack you pick, it’s still a good idea to employ good practices to improve battery life on your mobile device 5 Ways To Improve The Battery Life Of Your Tablet 5 Ways To Improve The Battery Life Of Your Tablet Tablets are becoming a popular mobile device, and their impressive endurance is one of the greatest draws. Most tablets can last eight to ten hours even when displaying mobile video or surfing the web. This... Read More .

myCharge Hub (3,000 mAh – $66, 9,000 mAh – $130)

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Generally, charging your phone with a battery pack requires a standard USB cable, which one more thing in your pocket or bag. And if you happen to carry an iPad and an Android smartphone, then you will need to bring two different cables with you! It’s just additional clutter. Instead, the myCharge Hub is the most ingenious solution I’ve seen. It has an Apple Lightning Cable and a standard microUSB cable built in, plus a USB slot for a third cable of your choice. That’s right, you can charge up to three devices at the same time, including a tablet like an iPad! And as a kicker, the myCharge Hub is among the few power banks to come with a built-in 2-pin socket (on 6,000 or 9,000 models only) and plugs directly into any electrical outlet for charging. Indeed, this is the only battery pack which can work without any additional cables. Plus, it’s good-looking and not too bulky, although it can’t be called slim either. This is the complete package and is available in 3,000, 6,000 and 9,000 mAh capacities, so take your pick.

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Satechi Energy Station 10000 (10,000 mAh – $60)

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A slim and sexy profile coupled with a high capacity battery and priced reasonably, the Satechi Energy Station is the best battery pack around, according to most product reviewers. And there’s good reason for that — at $60 for 10,000 mAh, that’s a bargain most power banks can’t beat. Plus, a power bank should not be something you think twice about carrying because of its weight or bulky shape. It should slip into your pocket just as easily as your phone, and Satechi gets that right with a slim and long design as opposed to the fat-but-compact form factor other battery packs have. It has two USB ports to charge two devices simultaneously and supports large capacity ones like the iPad.

Of course, if you want a truly compact and portable option, you could look at battery cases instead. There are some great iPhone 5 battery cases The Best iPhone 5 Battery Cases Compared The Best iPhone 5 Battery Cases Compared The small, thin iPhone 5 only has so much room, and a small battery almost always leads to modest talk time. Buying a battery case is the easy solution. But which should you buy? There... Read More and the ZeroLemon cover ZeroLemon Batteries for Samsung Galaxy S4 and Note 3 Review and Giveaway ZeroLemon Batteries for Samsung Galaxy S4 and Note 3 Review and Giveaway Phone manufacturers are putting a lot of money into research and development of small, lightweight, and powerful batteries that should last all day. But did you know you're not limited to the stock battery? Read More will double your battery life on Samsung Galaxy models like the S4 and Note 3.

Energizer XP18000A (18,000 mAh – $180)

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This one is for those who need some serious power on-the-go. The Energizer XP18000A is a tried and tested performer for charging any smartphone, tablet and even some notebooks! It comes with a wide range of wires and ports which allows it to connect to almost any type of device adapter. With laptops, it acts as a go-between power adapters so that you can charge the battery while you work, with your laptop siphoning off as much juice as it needs. It’s big, bulky and expensive, so make sure you need this kind of backup — it’s probably best for the traveller who can’t get to power points in time to charge up.

Solar Joos Orange (5,400 mAh – $150)

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When you’re on a camping trip and need a solar-powered charger, the Joos Orange is a no-brainer pick. It works with all kinds of devices, of course, but there are two things that set it apart. First, it has fold-out legs to keep it upright or facing in the right direction — too many solar packs ignore this small but crucial aspect. Second, it uses a 5,400 mAh lithium-polymer battery as opposed to a lithium-ion. Lithium-polymer batteries retain their charge longer than lithium-ion. One hour of direct sunlight is apparently enough for 2 hours of 3G talk-time, but real-world experience may vary. The more critical number is that it takes 12 hours of direct sunlight to charge it fully. It also works underwater, if that’s something you would care about.

ADATA DashDrive Air AE400 (5,000 mAh – $48)

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A battery pack needn’t be only a battery pack. The ADATA DashDrive Air makes more use of this additional device you’re carrying with you by turning it into a wireless memory card reader or expandable storage, as well as a Wi-Fi extender. The 5,000 mAh battery and single USB port takes care of your charging needs, but the cool part is that you can throw in a standard SD card and connect to this device wirelessly. Plus, 3 to 5 devices can connect to it simultaneously to access this storage, depending on the type of content you are accessing. Finally, the DashDrive Air connects to Wi-Fi and acts as an extender so more devices can connect to the same network. All in a nifty little package. Neat!

DigiPower Charge Card (680 mAh – $13)

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The DigiPower Charge Card is a tremendously helpful tool. You see, there’s a good chance you won’t always carry your power bank with you, but you always have your wallet in your pocket, right? Well, the Charge Card fits into one of your credit card slots — it’s roughly the thickness of 10 business cards. It’s a tiny battery, just 680mAh, but that’s just what you need to power up your phone enough to make one or two calls. Due to the size and design, it only has a flip-out microUSB connector and no other option. That means this one is only for devices that use a microUSB cable, so iPhone users, look away.

But there is some good news. A KickStarter campaign for a new product called the TravelCard could be just the thing for iPhone and Android users who value this “wallet-friendly” option in power banks. It’s already funded, so it’s hopefully just a matter of time.

Big Battery Or Power Banks?

If you were buying a new phone now, would you buy one with a larger battery, or are you okay with sacrificing battery for great design and other features? There are handsets out there with 4,000 mAh batteries, like the affordable Android smartphone 5 Affordable Android Phones That Don't Suck 5 Affordable Android Phones That Don't Suck Until 2 years ago, it didn't make much sense to buy budget Android phones because of the sub-par experience they offered. But things have changed. Read More Lenovo P780. But well, power banks can do more than just charging too, like we saw with the ADATA DashDrive Air. What’s your call?

  1. Kit Kennard
    April 25, 2014 at 3:20 pm

    What about the shelf-life of the charge capacity ?? If I charge it to capacity, say 10000mAhrs, will 10000 still be there after a week, after a month, after 6 months ??? This is an important feature!!!

  2. ling_c
    April 25, 2014 at 6:54 am
  3. dean
    April 15, 2014 at 6:33 am

    Just buy spare batteries. Loads cheaper. And if you're a cheap skate like me you will not have bought into the Apple world so the lack of a changeable pack doesn't matter.

  4. Douglas M
    April 14, 2014 at 3:34 pm

    Because I have to move a lot in places where electricity is sometime a miracle I bought the Joos Solar. It's just what you expect from a powebank! Plus its solar capability is very useful!
    Great article! Thanks

  5. Chris
    April 13, 2014 at 11:16 pm

    I'm shocked you don't have a single Anker product in your roundup. Just do a check on AMZ and you'll see Anker battery packs routinely getting 4.5* ratings. I love my 5,600mAh model that includes flashlight. Has very solid build quality, like all of Anker's stuff.

  6. Jamesrichards1964
    April 13, 2014 at 3:08 am

    I use a rayovac that uses 4 AA batteries, use rechargables or regular alkaline, costs about $10, works great. I can carry extra AA batteries and am good to go for days of camping or playing Ingress for several hours.

  7. Clement
    April 12, 2014 at 3:23 pm

    I'm in France but the company is shippinh worldwide via Amazon.
    I've just bought an Anker Astro E3 with 10000mAh capacity. In term of size, it's a big LG G2 which is less thin.
    I charged yesterday an iPhone and today my G2 (45 to 100%), between 50 and 75% left in the battery pack.
    The customer service is very comprehensive.
    Why don't you mention them.

    • Mihir Patkar
      April 12, 2014 at 3:41 pm

      Hey Clement,

      I did look at the Anker too, actually. IMO, the $40 Astro 3E is a good purchase, but not as good as the Satechi or myPowerHub. Why? As someone who has 8 different power banks at home, I can tell you that the one I always carry is the one that is the most unobtrusive. In that regard, for an extra $20, the Satechi is much more portable and worth that extra. And the myPowerHub beats both the Astro and the Satechi since you don't have to carry cables, but well, that comes at a price :)

      I'm not against Anker at all, I just think it makes more sense to spend those extra $20 because as a long-time power bank user, I can tell you that you will use the power bank a lot more if it's easier to carry in your pocket.

      Thanks for writing in!

  8. Ben B
    April 12, 2014 at 10:46 am

    I'm surprised you said nothing about native unions jump cable considering its massive success on kickstarter! Its a little different to your conventional backup battery as its also used as your charging cable, smallish battery but i don't want to carry around a brick with me. Also it looks rather nice with the slate colour and braided cable.

    http://www.nativeunion.com/uk/jcable-musb.html#144

  9. Robert Ford
    April 11, 2014 at 7:36 pm

    Hey Mihir,

    I test electronics devices for Amazon and my blog. You have a nice selection but in terms of performance, reliability and design, Apelpi smartphone and tablet backup battery chargers should be in this list. It's the only one that is MFi Apple certified, fully compatible with Android phones and made with Korean cells (not low quality Chinese cells) plus it has an awesome apple shape like no other (hence the name Apelpi, as in apple-pie).

    Try Apelpi out and you'll love its compact size plus the peace of mind that a high quality item brings to the table.

    • Mihir Patkar
      April 12, 2014 at 3:47 pm

      3200mAh for $55 without a built-in cable, when you get the 3000mAh myChargeHub for $66 with built-in cables and a direct charge plug? I'd go for the myChargeHub

  10. Alex
    April 11, 2014 at 6:27 pm
    • Brian Deeley
      April 12, 2014 at 12:19 am

      I'm a huge fan of these Anker Astro as well.

    • Mihir Patkar
      April 12, 2014 at 3:42 pm

      I like the Anker Astro series too. In a response to commenter Clement, I replied in a little more detail why I went with Satechi over the Anker. I dunno if you'll agree with my reasoning, but that's what the comments are for, so please feel free to argue (it's how us writers learn best!) :)

    • Jason N
      April 14, 2014 at 5:30 pm

      Shocked to see no Anker product. Anker rocks.

  11. Mark
    April 11, 2014 at 5:50 pm

    Seriously no mention of a single Monoprice product?

    http://www.monoprice.com/Category?c_id=108&cp_id=10831&cs_id=1083110

    I've got the 9283 - 5000 mAh - $29.82 - has both 1amp and 2.1 amp ports and has 4.5/5 stars on 186 review...

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