Mophie Juice Pack Case and Rechargeable Battery for iPhone 3G, 3G S
March 18, 2010 by JustBuying.com
- Doubles the battery life of your iPhone 3G–get up to 6 additional hours of talk time (on 3G network)
- Charge and sync your iPhone 3G to iTunes without removing it from the Juice Pack
- Smart Battery Technology instructs the iPhone to always drain out the Juice Pack first
- Integrated LED status indicator lets you know exactly how much power is left
- Protective case with soft-touch rubberized finish, form-fitting design
Product Description
Introducing the all-new mophie Juice Pack for the iPhone 3G, a uniquely designed soft-touch, non-slip iPhone case and rechargeable battery. The juice pack offers you the convenience of powering your iPhone on the go and gives you more than twice the battery life than the standard iPhone battery alone.Amazon.com Product Description
Double the battery life of your Apple iPhone 3G with the Mophie Juice Pack 3G, a rechargeable lithium polymer battery in the form of a non-slip, soft-grip rubberized case. It’s the only “Works with iPhone” Apple certified accessory that offers the convenience of an extended battery and the protection of a case. You’ll get a significant boost in battery life with the Juice Pack 3G, which provides the following additional hours of use:
- Standby Time: Up to 350 hours
- Talk Time: Up to 6 hours on 3G; up to 12 hours on 2G
- Internet Use: Up to 6 hours on 3G; up to 7 hours on Wi-Fi
- Audio Playback: Up to 28 hours
- Video Playback: Up to 8 hours
The Mophie Juice Pack 3G (iPhone 3G not included). |
Double the battery life with this extended battery pack/case combo. |
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The Juice Pack 3G is specially designed for iPhone 3G and has passed the strict over-the-air performance tests by an Apple designated test lab. As a result, the Mophie Juice Pack 3G has been officially certified by Apple Inc. as a “Works with iPhone 3G” product.
Features
- Pass-Through USB: Charge and sync your iPhone 3G to iTunes without removing it from the Juice Pack via the included USB cable
- Charging: You can use the included USB cable to charge the Juice Pack and iPhone simultaneously or just charge the Juice Pack.
- Intelligent Power Distribution: Smart Battery Technology instructs the iPhone to always drain out the Juice Pack first. When you’re done with the Juice Pack, simply detach it and you still have a fully charged iPhone.
- Safety First: The Juice Pack utilizes advanced rechargeable lithium-polymer battery cell technology for added safety. Built-in circuitry prevents the Juice Pack from shorting, over-charging or malfunctioning even under the most extreme conditions.
- LED Battery Status Indicator: The integrated 4-light LED status indicator tells you how much juice is left in your Juice Pack. Simply press the test button and it will tell you how much power is left. The LED lights also indicate the charging status and charging progress.
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Specifications
- Dimensions: 2.5 x 4.75 x 0.75 inches
- Weight: 3 ounces
- Compatibility: iPhone 3G
What’s in the Box
Mophie Juice Pack 3G, USB mini cable, printed user’s manual
Frequently Asked Questions
What are the best methods for charging your Juice Pack?
Connect the mophie juice pack to a power source using the USB cable that came with your juice pack. The USB cable can be plugged in to your PC or Mac or any “Works with iPhone” wall-plug style power source with USB out. You can either charge the Juice Pack 3G with the iPhone inserted or charge them separately.
How many charge cycles do you get in the Juice Pack for iPhone 3G?
The juice pack is rechargeable for over 500 cycles. (Full cycles, partial cycles don’t count as full. So, you can charge your juice pack 10 percent of the way 10 times before it counts as a complete cycle.) After 500 cycles, its fully charged capacity will be less than 75 percent of the the capacity when it’s new.
Buy from Amazon Mophie Juice Pack Case and Rechargeable Battery for iPhone 3G, 3G S

























I’m a talkaholic I’ll admit it! I can be chatting on the phone for hours at a time. The iPhone was not a huge supporter of my addiction so usually I had a extension cord hooked up in the kitchen so I can plug the iPhone in when my battery was to the point of shutting down the phone. Mophie allowed me true freedom from cords! We frequent Disneyland a lot and our iPhones usually can only stand about half a day. Usually around 5pm we’re at about 10% battery life. Instead of going back to the hotel for a recharge, we just pop in the Mophie! We each bought one for our iPhone and my case is very simple to remove but my other-half’s is a little more complicated so you might want to find an easy case to remove when needed as the Mophie will not fit otherwise.
Pros- 6 hours of battery life on 3G
It will charge your iPhone as well
slim, sleek design
with included USB your iPhone cable is not needed to sync
Cons- Not super easy to remove. It’s hard to remove without lots of fingerprints on your phone
Texture of the case does seem to wear easily
Rating: 4 / 5
So I’ve been using this product whenever I go on long flights and weekend trips so that I can watch movies and play games on my iPhone. As of recently it has been working fine but now the battery inside no longer holds any charge whatsoever. I went to the Mophie website and their warranty only covers it for one year.
So here they are, selling a product that is only built to last slightly over 1 year and they won’t even take it back when the battery inside is dead.
Don’t waste your money. This is just landfill waiting to happen.
Rating: 1 / 5
I carefully read the reviews of this battery. I understood the weight and size increase. This I could live with.
I ignored the reviews that spoke to phone coverage interruption. After all, I live in Ft Lauderdale where the reception is generally good. Our Iphone worked fairly well, with very few dropped calls for poor reception until I got this product. Additionally, when I ‘plug’ the Iphone to charge (with the battery attached) my Apple would stop recognizing some of equipment. If I were using Iphoto when I plug the phone in, the software would not work properly. This did not happen before I put the battery on.
Saturday I was trying to reach my family while I was at a soccer game… my calls were dropped so many times my daughter in law was upset when I got through for hanging up on her. I finally took off the battery and got through with no problem.
The ‘life’ of the battery was helpful, but not enough to put up with the problems I encountered. I have taken it off and will not use it anymore. What a waste of money.
Rating: 1 / 5
(Used with 3G S) I was primarily interested in this product as a ’sacrificial’ battery to prolong the (alleged) 500-cycle life of the internal iPhone battery, not to extend talk time per se. I could never get the thing to charge from the (Apple) AC adapter, only from a USB port- tying your ‘extra life’ to the availability of a computer. The pack did not run down before the internal battery as advertised by Mophie- it would start out running off the pack, but the use of an app, talking on the phone, or various other activities would inevitably cause it to suddenly switch to the internal battery when the pack had plenty of juice left. Obviously this rendered it useless for my purpose. Had high hopes and was therefore extremely disappointed. This may be more the ‘fault’ of the phone internals, but if it doesn’t work, well, it doesn’t work. I hope it can be improved- physically, it seems very well designed.
Rating: 2 / 5
I just went through my 3rd Mophie Juice Pack. After about six months, the juice packs would just stop working altogether. If I wiggled my 3GS around in the juice pack, it would charge for a second, then stop again. Basically, they became useless. My third juice pack never worked. At all. I charged it twice, the signal indicators on the back were fully lit, yet when I went to charge my iPhone, it would charge for 1-2 minutes and then the juice pack no longer lit up…leaving me frustrated, out of power, and out $80. I’ll try the new “Air” version, but if that doesn’t work, I’m done with Mophie.
Rating: 2 / 5