The 10 Best External Battery Packs

Updated February 14, 2018 by Brett Dvoretz

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We spent 46 hours on research, videography, and editing, to review the top choices for this wiki. Chances are, you spend most of your time on a phone, tablet, or handheld gaming console. When you're on the go, an external battery pack is your digital lifeline. These portable power banks can juice up all sorts of devices quickly and keep you connected anywhere, even when there are no outlets for your wall charger in sight. When users buy our independently chosen editorial picks, we may earn commissions to support our work. Skip to the best external battery pack on Amazon.

10. Kolumb Ultra Portable

If you are seeking something that is easy to keep with you at all times in case of an unexpectedly drained device, the Kolumb Ultra Portable is it. At a slim 6 mm thick, it fits in your wallet, so you never have to remember to take it with you when you leave the house.
  • built-in micro-usb cable
  • apple lightning and type-c adapter
  • can't recharge all phones fully
Brand kolumb
Model powercard-u2-2b
Weight 2.4 ounces
Rating 3.8 / 5.0

9. PowerOak K2

For those in need of serious power on the go, the 50,000 mAh, six-port PowerOak K2 is a force to be reckoned with. It includes 11 connectors to ensure maximum compatibility with a wide-range of laptops, and can juice up an iPhone over 17 times on a single charge.
  • tough aluminum shell
  • extremely large and heavy
  • not approved for airline travel
Brand POWEROAK
Model MKT-K2-50Ah
Weight 4.3 pounds
Rating 3.8 / 5.0

8. iMuto Taurus X4

Keep your phone or tablet topped up at all times with the iMuto Taurus X4. It sports a stylish, two-tone color scheme, either in black and gold or white and red, and displays the remaining battery level in a precise digital format.
  • lcd stays off until activated
  • over-voltage and current protection
  • supports pass-through charging
Brand imuto
Model PB-AS151 Black
Weight 3.1 pounds
Rating 3.8 / 5.0

7. RavPower 2-in-1

The RavPower 2-in-1 does double duty as a standard wall charger and a backup power bank, so you have one less thing to carry with you when traveling. It it is equipped with power indicator LEDs and two ports with a max combined output of 3.4 amps.
  • collapsible prongs
  • feels durable and well-built
  • too bulky to carry in a pocket
Brand RAVPower
Model RP-PB066
Weight 1.8 pounds
Rating 3.8 / 5.0

6. Anker Astro E1

With its exclusive PowerIQ technology, the Anker Astro E1 is capable of juicing up your devices up to four times faster than a standard computer USB port and, at the size of a small candy bar, it fits easily in your pocket. Just do your best to refrain from taking a bite.
  • no power buttons to mess around with
  • comes with a cable
  • attractive curved housing
Brand Anker
Model AK-A1211015
Weight 6.4 ounces
Rating 3.8 / 5.0

5. Poweradd Pilot 2GS

The Poweradd Pilot 2GS features two USB ports, so you can charge multiple devices at the same time. Great for tablets and larger phones, the port indicated with two lightning bolts is more than twice as powerful, at 2.4 amps, than its 1.0 capacity neighbor.
  • includes usb cable and manual
  • safeguards against overcharging
  • comes in four snazzy color choices
Brand Poweradd
Model Pilot 2GS
Weight 11.4 ounces
Rating 4.1 / 5.0

4. Jackery Bolt

For everyday use, the 6,000 mAh Jackery Bolt is a good option that won't take up too much room in your pocket, but can still charge most phones fully at least twice. It has handy built-in cables for Apple products and any micro-USB-compatible device.
  • built-in led flashlight
  • one amp discharge rate
  • sturdy construction
Brand Jackery
Model K060BBKH
Weight 7.2 ounces
Rating 4.7 / 5.0

3. Plochy Portable

The Plochy Portable is the ideal solution for anybody who will be away from traditional power sources for any length of time. Not only can it charge your device without you having to find an outlet, it can do the same for itself with its integrated solar panel.
  • auto detects the best current
  • can be taken on a plane
  • apple lightning port
Brand PLOCHY
Model pending
Weight 1.2 pounds
Rating 4.6 / 5.0

2. Tronsmart Presto

The Tronsmart Presto supports Qualcomm Quick Charge-enabled devices, and has a smooth ebony exterior that gives it a sleek look. It's not much bigger than the average smartphone, so carrying it around all day shouldn't be much of an inconvenience.
  • 10000 mah capacity
  • comes with an 18-month warranty
  • led status indicator
Brand Tronsmart
Model pending
Weight 11 ounces
Rating 4.6 / 5.0

1. Anker PowerCore 26800

The Anker PowerCore 26800 can charge most phones seven times before it needs to be plugged in again. It boasts three USB outputs for simultaneous connection of multiple devices and is equipped with PowerIQ and VoltageBoost technology.
  • comes with a carrying pouch
  • recharges fully in just six hours
  • as powerful as a flux capacitor
Brand Anker
Model AK-A1277011
Weight 1.3 pounds
Rating 4.8 / 5.0

The Tech Savvy Mobile User

It might be painful to admit it, but most of us are all but lost without our smartphone and various smart devices. With everything from airline ticketing to driving directions and up-to-the-minute stock market information just a click away, the modern person is firmly tethered to his or her devices.

And while reliance on a smartphone might involve the sacrifice of a bit of independence -- there's no reason to explore a city when you can be directed right to a destination, for example -- the convenience afforded by these multitasking devices is truly remarkable.

It's little surprise that so many members of the younger generations have chosen to give up on traditional landline phones and use their cellular phone as their primary means of communication. As the capabilities of and applications for smart devices continue to grow each and every day, it's hard to say how much further they will infiltrate into our lives in another decade hence.

What can be said with certainty now is that as convenient as a smart device has become, the other side of that equation is the extreme inconvenience we experience when our smartphone or tablet is not working properly. Woe to the traveler who neglected to print his or her ticket, much less even their itinerary or confirmation information, who has a dead smartphone and a flight to catch. And anyone who has ever been caught far afield in unfamiliar territory only to have their phone shut off, leaving them without maps or GPS capabilities, can describe their abandonment.

Whether you find yourself traveling for work or pleasure, or simply navigating your way through your own city to a new destination, chances are good that you be use your phone as an aid in the process. And whether you're placing calls to help you close a deal or just to catch up with friends or family, it's a safe bet you're doing so via cell phone. This is likewise true for checking news updates, sports stats, and email while you're away from home. In short, unless you're sitting at a computer, you're probably going to be counting on your mobile device for multiple tasks. Don't let your access to all the info and communication to which you're accustomed be compromised by a dead battery.

An External Battery Pack For Mobile Convenience

When considering the purchase of an external battery pack, instead of first looking at the various units available on the market, first take a look at the smartphone, tablet, and/or laptop computer that you actually use on a regular basis. While the circuitry inside a good external battery pack is complex and impressive, the choice of which unit is right for you need not be rocket science, but rather basic math.

Ask yourself how many devices at most you would need to charge in a given day, and consider their voltage requirements for proper charging. You can then conduct a process of elimination exercise, ruling out external battery packs that offer a surplus of power beyond your needs, thereby passing on units that cost more than you need to spend.

There are perfectly adequate external battery packs that cost a reasonable amount of money and are capable of quickly providing a full charge to any smartphone. If your issue is a battery often drained by the mid-afternoon, then one of these units should be more than suitable for your needs.

If, on the other hand, you frequently use your devices during travel and are often not in the proximity of convenient outlets, a pricier unit with the ability to recharge your device multiple times may be warranted. Just keep in mind that with this added power, so to speak, often comes more size and weight, which can be an issue during travel.

Using An External Battery Back For Emergency Preparedness

If power lines are down and you don't have access to a landline phone, your cell phone might be your only means of communication after a severe storm, a natural disaster, or even during periods of civil unrest or terror activity. And that can mean you are just one drained battery away from being totally cut off from communications with emergency responders, friends, and relatives, and from getting any news from the outside world.

In these situations, an external battery pack extends your lifeline of communications to those who might be able to help you, or to someone you might be able to help. It's a wise idea to make a modest investment in a decent external battery pack that you might hardly ever use; you'll be glad you kept it on hand and charged that one time you need to breathe life back into your phone and make a call for help, or to follow the news and see what's going on and when things are again safe.

First responders are well advised to keep an external battery pack on hand in their vehicles if not on their person. The communication afforded by a phone or a radio is critical in emergency situations, and many smartphone apps offer diagnostic and informational attributes that can be helpful in the field. The more reliable access an emergency responder has to information, the more effective he or she can be in helping to mitigate whatever situation has arisen.


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Last updated on February 14, 2018 by Brett Dvoretz

A wandering writer who spends as much time on the road as behind the computer screen, Brett can either be found hacking furiously away at the keyboard or perhaps enjoying a whiskey and coke on some exotic beach, sometimes both simultaneously, usually with a four-legged companion by his side. He hopes to one day become a modern day renaissance man.


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