Review: Nine batteries for charging your iPad (and everything else)

At a Glance

With a battery capacity of 8000 mAh, the Portable Power offers a good amount of charging power, and with five USB ports, it can accommodate more devices than most of the batteries we tested.

Price when rated: $90.00
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At a Glance

The Portable Power Max has the highest capacity of any battery we tested, but that means it's heavy and takes a long time to charge.

Price when rated: $130.00
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At a Glance

The Gum Max duo can charge an iPad and one lower-power device simultaneously, and its sleeves offer a splash of color.

Price when rated: $130.00
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At a Glance

The Helix sports three USB-charging ports, and we were able to charge two phones and one iPad simultaneously.

Price when rated: $100.00
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Where to buy

At a Glance

The Juice Pack Powerstation Duo has the lowest charging capacity of the iPad-capable batteries we've tested, but it's also the smallest and lightest.

Price when rated: $100.00
Lowest price: $100.00 via Target.com
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At a Glance

The Powerstation Pro is bulky and rugged but surprisingly light. However, it doesn't have a lot of juice for an iPad-compatible battery, and it can charge only one device at a time.

Price when rated: $100.00
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At a Glance

The iCarrier is one of the least expensive iPad-compatible chargers around, but it also has one of the highest capacities. However, only one of its poorly labeled ports supports an iPad.

Price when rated: $70.00
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At a Glance

The HyperJuice Plug has a wall plug built right in, and its ports are smart enough to recognize which of its two ports is drawing the most power and adjust accordingly.

Price when rated: $130.00
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At a Glance

The HyperJuice Plug has a wall plug built right in, and its ports are smart enough to recognize which of its two ports is drawing the most power and adjust accordingly.

Price when rated: $160.00
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