10 Portable Battery Chargers Keep Your Device Powered

No matter how powerful the battery, it's nearly impossible to keep your mobile device running though a busy day. Here are some mobile chargers that can help.

Who among us hasn’t found ourselves silently cursing smartphone developers when our batteries run out of juice just when we need them most? These small but powerful portable battery chargers can help you out in a pinch; some can even charge your tablet, too. Just throw one of these handy little gadgets in your bag or pocket and you'll never find yourself without a power source when you are on the go. Arranged from largest capacity to lowest, here are 10 mobile battery chargers that can help keep you in power.

Also check out: On-the-go power: Mobile chargers keep your device alive

HyperJuice Mini 7200mAh External Battery

Compact and powerful, the HyperJuice Mini comes with two USB ports so you can charge two devices simultaneously. In fact, according to the vendor, this little powerhouse can recharge an iPhone up to six times or add six hours to the life of an iPad. The HyperJuice Mini comes in 10 color choices and is around the size of a smartphone, but there's also a Micro version that has half the capacity of the Mini and rings in at $69.95.

Price: $99.95
Capacity: 7200mAh
Dimensions & weight: 5.2 x 3.1 x 0.55 in.; 8.4 oz.

myCharge Peak 6000 Rechargable Power Bank

When charging two devices at once is not enough, turn to the myCharge Peak 6000, which lets you power up to three devices simultaneously. The built-in USB cable and wall prongs let you easily recharge the Peak 6000, and the USB port, micro-USB cable and 30-pin Apple connector ensure you can connect to any device (iPhone 5 owners can use their own cables with the USB port).

The Peak 6000 will add up to 27 hours of talk time to your smartphone; it can also handle a tablet.  A voice notification feature tells you when the charge is complete.

Price: $70.68 - $99.99 
Capacity: 6000mAh
Dimensions & weight: 5.3 x 3.0 x 1.0 in.; 8.5 oz.

MiPow Power Tube 5500

The MiPow Power Tube 5500 is a little larger than a cigarette lighter and can charge most smartphones at least twice or a tablet up to about 50% of capacity. It includes a charging cable and 10 adapter tips; if none of those suit, it has a USB port that you can use with your device's charging cable.

The Power Tube also comes equipped with an LED that can act as a flashlight in a pinch. It is available in 10 colors and comes with its own carrying pouch.

Price: $99.00
Capacity: 5500mAh
Dimensions & weight: 3.7 x 1.2 x 1.2 in.; 4.9 oz.

Innergie PocketCell Rechargeable Battery Bank

Sleek and attractive, the Innergie PocketCell has enough juice to charge your phone or your tablet. Roughly the size of a cigarette lighter, the PocketCell comes with a 3-in-1 cable, which includes a mini-USB, a micro-USB and a 30-pin Apple connector (iPhone 5 owners can use their own cables with the included USB port).

The PocketCell can extend your smartphone talk time by at least 15 hours and your tablet use time by up to five hours. As an added feature, the PocketCell turns itself off after 10 seconds of not being used, saving energy and ensuring it is ready to go when you next need it.

Price: $59.99
Capacity: 3000mAh
Dimensions & weight: 3.6 x 1.2 x 0.8 in.; 2.5 oz.

Powerocks Magicstick 2600mAh

The Powerocks Magicstick 2600mAh is easy to carry around with you; it's only slightly larger than a lipstick tube. The device lets you completely charge most smartphones twice; it comes with a micro-USB connection cable and a velvet carrying bag.  A slightly larger 2800mAh version is also available for $10 more.

Price: $39.99
Capacity: 2,600mAh
Dimensions & weight: 3.6 x 0.9 in.; 2.6 oz.

nPower PEG Personal Energy Generator

The most expensive -- but most innovative -- item on this list, the nPower Peg charges itself using the kinetic energy created from walking, running or biking (though it can also charge from a computer through its USB 2.0 port). If you find yourself out with a dead battery and your Peg is also depleted, shaking the Peg vigorously for a few minutes will give you enough power to make a short call.

Fully charged, the Peg can power a smartphone up to 75% and a tablet to 15% capacity. It comes with a USB cable and an iGo cable with an interchangeable micro-USB tip; other tips are available.

Price: $199.95
Capacity: 2000mAh
Dimensions & weight: 10.5 x 2 x 1.5 in.; 14 oz.

InstaPark Mercury 4S Ultra-slim Portable Solar USB Cell Phone Charger

Though it probably won’t fit in your pocket, the Instapark Mercury 4S Ultra-slim has the benefit of having solar panels. Folded up, it is roughly the size of a paperback book; unfolded (which is how you expose the solar panels), it is 12 in. long and only 0.5 in. thick.

The Mercury 4S has a weather-resistant design; it will charge itself and an external device at the same time. It offers a standard USB port so that it is compatible with most mobile devices.

Price: $32.90
Capacity: 2,000mAh
Dimensions & weight: 7.2 x 4.5 x 1.2 in.; 7.6 oz.

Eton BoostTurbine 2000

This hand-powered battery charger features a standard USB port, making it widely compatible with most mobile devices. When it is fully charged via its micro-USB input, it can completely power up most smartphones. Use the handle to crank the BoostTurbine 2000 up for one minute and you have enough power for a short phone call or several texts.

Slightly larger and heavier than some of our other options, the BoostTurbine is still small enough to stash in your bag or pocket.

Price: $59.99
Capacity: 2000mAh
Dimensions & weight: 1.0 x 2.2 x 5.0 in.; 7 oz.

iGo Charge Anywhere

The iGo Charge Anywhere is a portable battery that can double as a wall charger, so it can charge your mobile device and itself at the same time. Smaller than a standard smartphone, this compact and inexpensive portable charger is useful in a pinch.

No cables or tips are included, but it does have a USB port and retractable wall prongs.

Price: $39.99
Capacity: 1,800 mAh
Dimensions & weight: 4.3 x 2.4 x 1 in; 6.24 oz.

Tylt Zumo Portable Battery Pack

Smaller than a credit card (but not as thin), this nifty little charger will give you four hours of additional talk time on a smartphone and give your 7-in. tablet a 25% charge. The Tylt Zumo comes in two models: one with a fold-away micro-USB cable and one with a fold-away 30-pin Apple connector (Apple 5 owners will need a Lightning adapter). Both versions come with a standard USB connection for powering up the unit, along with an extension cable.

Price: $39.99
Capacity: 1,500mAh 
Dimensions & weight: 0.97 x 1.8 x 2.6 in.; 2.4 oz.