Reviews for Mophie Juice Pack Air for iPhone 4S

This product is a life saver. It is clear the one area Apple has not been innovative is their battery life. The iPhone 4s is a great piece of hardware, until about midday, when power is at a premium. Mophie has saved the day with this product. I can now actually use the iPhone and all of its cool features ALL day without having to be standing next to an electrical outlet. It fits my phone perfectly and I personally like the thickness and weight it adds. Basically this has saved me from regretting switching to an iPhone.

I have been using mine for several months now, and it works beautifully.

I have only two complaints / regrets. The first is that the Juice Pack requires using a MicroUSB rather than Apple's proprietary cable; the second is that it is such an exact fit (a good quality, don't get me wrong), that putting on a screen cover is difficult.

These two niggling complaints notwithstanding, I am very pleased with the Juice Pack.

Mini USB broke in 1 month why would you make such a cheap port, also the battery is held together with masking tape! This has to be illegal the thing could catch fire.

I bought another case as for $20 from a cheaper brand and it has lasted 7 months more than this poorly made unsafe fire hazard apple don't carry this brand it makes your products look bad.

Everyone is saying the same thing. Great idea, less than acceptable quality. My phone fell from a chair onto a wooden floor and the top piece flew off and cracked in 2 places, making it difficult to put back together.
Battery is average.
$80 is a lot to pay for product that is not ready for the consumer.
I hope the company is reading these reviews and making the adjustments because I'd buy another one if the product was of higher quality.

I agree with the other reviews- just stopped working. Waste of 80.00.

Piece of junk. Only worked for about one month. I kept carrying the stupid thing around thinking it was my fault that it was not charging. Now, 6 months later, I finally research it and see that it simply stopped working. Real nice.

Thought I would take a chance on this even after reading the mixed reviews. The case does not stay held together well as the top part comes off easily when trying to remove the phone from your pocket. Fairly serviceable as a battery charger but a huge failure as a case. Absolutely Terrible design...

I love the battery and cover... except that over the 3 months that I have had it the cap has fallen off countless times usually when I am trying to take the phone out of my pocket. Once because of this I stepped on it...after that it still worked...but it fell off for the last time tonight and now I can't find it... unfortunately I was not in an area i expect to be in again and it was dark. I can't find a replacement part for the cap online on Morphie site and I asked a friend who works at the physical apple store i bought it at to see if they sold the replacement there and she said they didn't. Hoping someone will be able to help when Morphie is open on Monday.

For those of you who wants a long lasting talk time, this is the product you need.
It adds more weight and bulk but if you are looking for more battery this is just perfect.
My pros and cos no matter the order:
Pros: 1. You can sync with the cover on (micro sd port)
2. Adds a lot of battery (using whatsapp, email, music, twitter from 8am and when it was 11pm the iPhone still have 30% battery
Cons: 1. Hard to access the lower button volume when you in a call
2. Iphone won't look again as an iPhone, kind of bulky
3. It adds more weight, i got accustom.

I received the Mophie from a friend as a gift last week. I was concerned that regardless of the protection it afforded my iPhone (more sturdy than my last case) it was bulkier, made it harder to reach the outer buttons, and I wasn't quite convinced it was the battery saviour it said it was. Literally 1 week later (today) whilst trying to plug in my mini usb the port broke and became loose!!! I didn't try to force it in the wrong way, nor did I wriggle, drop or pull anything; it just broke. Now I'm afraid to use this thing as even a plain case, figuring that the initial incentive of battery back-up is useless, but mainly because I figure the dock connector is just as flimsy as the mini usb connector!!! Shoddy, shoddy workmanship, people.