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Maxboost Hybrid Detachable Battery Case for iPhone 4S & iPhone 4 - Black/Black (1900 mAh Fits All Versions of iPhone 4 & 4S)

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Currently unavailable.
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Product Information

Technical Details
Item Weight113 g
Product Dimensions10.2 x 1.3 x 5.1 cm
Batteries:1 Lithium ion batteries required. (included)
Item part numberMH4-1900B-BLK
Compatible DevicesApple iPhone 4, Apple iPhone 4s
Batteries IncludedYes
Batteries RequiredNo
Device TypeBack Cover
Additional Information
Best Sellers Rank #9,22,451 in Electronics (See top 100)
Date First Available21 June 2013

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Customer Reviews

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Most Helpful Customer Reviews on Amazon.com (beta)

Amazon.com: 4.4 out of 5 stars 604 reviews
82 of 86 people found the following review helpful
5.0 out of 5 stars Incredibly nice! Way better than Mophie with many nicer features! A must buy! 7 January 2013
By Ken F. - Published on Amazon.com
Verified Purchase
I don't normally write reviews of my Amazon purchases, but this one compels me to do so. I am a long time iPhone user. I use it heavily for work and can run it out by 5 pm with ease. I have been through three different Mohpie battery packs going all the way back to the iPhone 3. I am now on an iPhone 4s. I took a chance on this case in hopes to find something better than the Mophie, who after all these years, still rely upon the week and feably top design.

So whay is the Maxboost the best? It is a case and battery pack in one. The run time on the battery is fine, but what won me over was the ease at which the battery comes off and leaves you with a somewhat protective case still on the phone. It is then docakable as if it were a bare iPhone. The battery goes on solid and is snug when connected. In all respects, it has all the +'s of the Mophie, then goes beyond that with it's fit, extra case when battery is off and the overall feel. The microphone and speacker pots work as well or better than the Mophie and one thing they do not put in the instructions is that is can be turned off while on the phone just like the Mophie. Just hold the power level button on the bottom and it shuts off.

Another HUGE BONUS was the hole provided for the flash and the camera lens. It is as if this company took the Mophie and then removed all the negatives. Mophie will ALWAYS leave a haze and halo on photos taken with the camera when flash is used. The Maxboost case has a completely modified design of the hole and there is NO haze or halo on any photo that I have taken.

So I guess you can tell, I love this case. I highly recommend it for all iPhone users looking for a solid battery boost case with all the benefits of Mophie and none of the negatives. I can't find one negative to report. If I do, I will update.
4.0 out of 5 stars Four Stars 12 July 2016
By H. Payne McIntosh - Published on Amazon.com
Verified Purchase
worked ok
17 of 18 people found the following review helpful
4.0 out of 5 stars Works well for the $ 20 April 2013
By Hook em' - Published on Amazon.com
Verified Purchase
After owning 2 Mophies and researching all products on the market I decided to go with the Maxboost based on decent reviews and low cost, and with limited expectations and a small amount to lose. My first Mopie at 4X the price just stopped working after a few months with no damage to it. They replaced it and the new one lasted as long until the charging port broke when the case was dropped about 3 feet to the floor. Seemed very poorly constructed. I decided not to spend the $ on another.

The Maxboost has surpassed my overall expectations. I find it easy to work with and it gives the phone a good charge. Feels solid when holding it and I like the rubberized grip, which has yet to show any signs of wear after 2 months. It does feel a bit warm when charging the phone but again most do. My only 2 complaints are: first, it can be tricky to activate the power button which you have to double click quickly to activate and can take several tries, but not that big a deal. The second is the charging port, which doesn't always make a solid connection with the plug, you have to adjust the plug slightly until it shows power and then put down gently to maintain the powered connection. Hope it is not a sign of things to come

But overall for the price and effectiveness, I would definitely recommend it.
6 of 6 people found the following review helpful
5.0 out of 5 stars Review of Maxboost iPhone 4/4S Battery Extender 29 May 2013
By Karter Wall - Published on Amazon.com
Verified Purchase
This product will double the battery life of an iPhone 4 or 4S and iphones. iPhones have a very good battery life compared to other smartphones. I own a couple iphones and let by 12 year old daughter take her iPhone on a camping trip. She ran the battery down and I had no way to contact her. I wish she had taken this extender with her. This is only one example of how one needs this product.

The Maxboost itself is a good idea since you can't swap batteries with an iPhone. The case included is nothing more than a skin, it offers zero protection in the occurrence one drops it. The case/skin snaps onto the iPhone which provides a slot for the battery extender to attach on the iPhone. Again, it provides no protection from accidents. I used an Otterbox for real protection.

I have provided pics to show the units size compared to a bare iPhone. This is my biggest concern, size and weight. It adds an extra 7mm to the length and 4mm to the thickness. I will say that it is very simple to attach the Maxboost to the iPhone, providing you don't have to remove any other protective case, such as an Otterbox. If your dealing with a bare iPhone, one can slip on the Maxboost in less than a minute.

The Maxboost charges with a mini USB charger, much like all Android phones have and this charger comes with the product. I charged mine in less than 2 hours fresh out of the box. It has four blue LED lights to meter the battery life as well as a button that turns on/off the Maxboost . I tested it and with normal use it doubled the iPhone's battery life. I then used it on games that normally kills my iPhone in four hours. The Maxboost added another five plus hours.

It comes in a nice box with good instructions of six different languages, but I didn't need to read them because it is simple to use right out of the box. I would suggest this product to anyone that uses their battery life within half a day or to people that do not have easy access to chargers.
6 of 6 people found the following review helpful
5.0 out of 5 stars great product 23 May 2013
By Kristina foster - Published on Amazon.com
Verified Purchase
Such a great idea. I usually charge it up and throw it in my purse so when my phone starts to die and i don't have anywhere to charge it i pull this bad boy out!! it has saved me so many time. L.O.V.E it.

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