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6 Best iPhone 4 Battery Cases

By , April 12, 2011 | iPhone, Accessories
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Your trusty iPhone is always there when you need it. Say you’re in a new town and you needed to turn on the GPS to find your way only to find it dying on you moments later. The battery life on the iPhone 4 can be pretty dismal when GPS, Wifi or Data Roaming is turned on. Thankfully there’s some pretty decent battery cases that comes in all kinds of sizes which combines both external battery and the case. Here are some of the best battery cases for the iPhone 4 that not only give you battery boost but also protection from bumps and scratches.


#1. Mili Power Spring 4


This is an attractive battery pack that fits the new iPhone 4 perfectly and offers a good battery boost too. It has a power button for you to charge the phone when you want it to. However it’s slightly bulky and shiny black surface picks up fingerprints easily.

  • Capacity: 1600 mAh
  • Connector: Mini-USB
  • Product Dimension: 124 x 65 x 18 mm

Price: USD$54.95 (Amazon)
Amazon Customer Rating: 3.5/5
Supported: iPhone 4


#2. Mophie Juice Pack Air


Even though this battery pack is rated at 1500 mAh compared with Mili’s 1600 mAh, but the Mophie exhibited equivalent performance. Though more expensive, it justifies itself by not only protecting your phone, it is solidly built but still thin and oozes class as well. Mophie is clearly one of the best battery case out there in the market.

  • Capacity: 1500 mAh
  • Connector: Micro-USB
  • Product Dimension: 128.8 x 63.8 x 17.2 mm

Price: USD$44.98 (Amazon)
Amazon Customer Rating: 4/5
Supported: iPhone 4


#3. Splash O2 Lite Slim-Profile


This is another battery pack which is affordable, durable and sturdy. It packs some juice with it’s 1700 mAh capacity.

  • Capacity: 1700 mAh
  • Connector: Mini-USB
  • Product Dimension: –

Price: USD$38.95 (Amazon)
Amazon Customer Rating: 3.5/5
Supported: iPhone 4


#4. EXOGEAR Exolife


This is a cheaper alternative where it has a very slim design and gives you decent charge time as well.

  • Capacity: 1500 mAh
  • Connector: Mini-USB
  • Product Dimension: 129.54 x 60.95 x 15.23 mm

Price: USD$58.92 (Amazon)
Amazon Customer Rating: 3.5/5
Supported: iPhone 4


#5. uNu Power DX-1700W External Protective Battery Case


Another solid and sturdy battery case in great looking glossy white color which doesn’t scratch easily and also has LED power indicator that flashes when battery is low. uNu also has a power button to toggle charges on/off. Great battery life and a cheaper price makes this battery case a great buy. There’s also a black version available.

  • Capacity: 1700 mAh
  • Connector: Micro-USB
  • Product Dimension: 120 x 62 x 17 mm

Price: USD$19.99 (Amazon)
Amazon Customer Rating: 4/5
Supported: iPhone 4, iPhone 4S


#6. Boost Case Plus


Boost Case Plus is the more power packed original Boost Case with an increased capacity of 2200 mAh and it also fits both the iPhone 4 and iPhone 4S. A well built case that’s not as bulky as you would expect even with the extended power that is capable of doubling your original iPhone 4 battery life. It’s an Apple Certified case that lets you sync and charge simultaneously without needing to disconnect.

  • Capacity: 2200 mAh
  • Connector: Micro-USB
  • Product Dimension: –

Price: USD$59.95 (Amazon)
Amazon Customer Rating: 4/5
Supported: iPhone 4, iPhone 4S

3 Comments on "6 Best iPhone 4 Battery Cases"
  1. Comment left on:
    August 10, 2011 at 3:04 am
    Mark says:

    Did you guys every try the battery case from Momentum Designs? I like that it’s gloss white, but haven’t heard to much about it?

    They are also on Amazon:

    just wondering

  2. Site Administrator
    August 13, 2011 at 10:11 pm
    Jae Vin says:

    Hmm…nope….never tried that one before. That looks like it’s just out.

  3. Comment left on:
    August 17, 2012 at 11:44 am
    Joey Tuft says:

    Great site I am going to bookmark this page and save it for future reference

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