If your iPhone’s battery is draining like crazy because of Pokémon Go, check out these charger cases so you can keep catching ‘em all.

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Mophie Juice Pack Plus for iPhone 6/6S

Product Review: http://www.cnet.com/products/mophie-juice-pack-plus-for-iphone-6-6s/#ftag=CAD187281f

CNET rating: 4 stars out of 5 (Excellent)

The good: The Mophie Juice Pack Plus more than doubles your iPhone’s battery life. An indicator light helps you keep tabs on power levels, and its burly plastic construction protects against drops.

The bad: The case is pricey and its matte finish attracts fingerprints.

The cost: $119.95

The bottom line: Mophie’s backup battery case remains one of the best in the biz, but it’s pricier than others, so consider it an investment.

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Trianium Atomic S Battery Case for iPhone 6/6S

Product Review: http://www.cnet.com/products/trianium-atomic-s-battery-case-for-iphone-6-6s/#ftag=CAD187281f

CNET rating: 4 stars out of 5 (Excellent)

The good: The inexpensive Trianium Atomic S Battery Case has a simple, unfussy design and charges your iPhone in a relatively short time.

The bad: The large opening in the back of the case is no deal breaker, but it does look jarring.

The cost: $38.13 to $38.99

The bottom line: Affordable and well designed, the Trianium Atomic S Battery Case is the top iPhone battery case for its price range.

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OtterBox Resurgence Power Case for iPhone 6/6S

Product Review: http://www.cnet.com/products/otterbox-resurgence-power-case-for-iphone-6-6s/#ftag=CAD187281f

CNET rating: 4 stars out of 5 (Excellent)

The good: The OtterBox Resurgence Power Case powers up your iPhone to nearly a full charge, all while protecting it from rough drops and bumps.

The bad: The accessory takes some wrangling to attach and detach, and it isn’t as elegant-looking as other battery cases. After a fall, the case can pop apart.

The cost: $36.73

The bottom line: The OtterBox Resurgence Power Case is a good choice for power and protection, but if you don’t need that much durability, consider something with a sleeker design.

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Incipio Offgrid Express for iPhone 6/6S

Product Review: http://www.cnet.com/products/incipio-offgrid-express-for-iphone-6-6s/#ftag=CAD187281f

CNET rating: 4 stars out of 5 (Excellent)

The good: The Incipio Offgrid Express will fully charge the iPhone once and powers up your phone’s battery just as well as more expensive chargers.

The bad: The case has a few inelegant open seams that look unattractive and awkward.

The cost: $43.09

The bottom line: The Incipio Offgrid Express has some design flaws, but get this over the pricier Mophie Juice Pack.

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The following CNET staff contributed to this story: Senior Associate Editor Lynn La and Senior Editor Laura K. Cucullu. For more reviews of personal technology products, please visit www.cnet.com.