Side by Side Comparison of: Atc vs UNU

This UNU battery case works great, I did not want to enter a comment until I had some reasonable time to experience it's functionality, and I am very pleased with the fit and fell, it may be a little thicker than other protective cases with-out a battery but I like the fact that you can hold the cell phone with a better grip.The silver-white combination gives it a classy look, I look foreword to my cell phone having great protection, a full load of added charge time as needed and an extended cell phone battery life with this product.

I already have the Power DX version and love it with one exception . . . the upper slide-on/off piece which allows you to remove the battery from the iPhone, is very fragile and I have gone thru 3 of them (they are available online). After the most recent breakage of the piece, I decided to try this Power DX PLUS battery and I find it to be a more rugged version. Although I have only had it a short time, I fully expect it will solve my breakage problem.BTW: The "slide on\off piece" on the "PLUS" version is not compatible with the non-PLUS version in case you are considering buying one as a replacement for installation on your non-PLUS battery.

I purchased 3 uNu cases. A 1700ma for myself and two 2400ma cases for family gifts. They all more than met our expectations. I've had Mophie and 2 other brands that failed in less than 3 months. They failed because of the mini connector on the case stopped accepting a charge or detached from the case internally. The uNu cases are good quality and have performed extremely well from day one. I get 2 days from my 1700ma and my son and daughter in law both are averaging 3 days from their 2400ma cases. We all added the dry transfer screen offered by AT&T and have come up with a no-fuss operating mobile phone. This case is very reliable and would recommend it to any 4s iPhone user.

Three weeks after ordering this, I decided to test it to its maximum capacity as I wanted to drain the 4s battery and fully charge it as I do once per month. I had fully charged the uNu a week earlier and I had not used to fully recharge the 4s. I left home on the way to work with about 32% battery capacity on the telephone with a 90-minute commute ahead of me. I listened to music and downloaded a dictionary on the way there using 3G on the subway. I also conducted a couple web searches. On my return trip home (I leave my phone off at work), I began with ~18% battery power (these percentages are all according to the meter on the iPhone). I allowed the telephone to drain down to ~1% battery power before turning on the uNu to begin charging my telephone (it took about 30 minutes of reading an e-book, downloading a dictionary, and checking six email and three text messages to go from ~18% power to ~1% power using 3G with WiFi turned on). The telephone continued to charge throughout my trip while undergoing what I would consider to be moderate-to-heavy usage while on a typical subway commute (listening to music, and conducting a 3G download of two e-books on the way home at one stop with decent cellular coverage, all while reading another e-book - no talk, however). When I returned home, I began browsing the news using WiFi while still using the uNu to continue charging the battery. A little over two hours after I starting charging the telephone using the uNu, it stopped charging the 4s battery. My battery indicator read the telephone had reached a 78% charge.I cannot say whether all will get these results, but I think they are reasonable for commuters who use their telephones for entertainment while commuting. Also, I cannot say whether or not this is the best phone case for all as I have never dropped the phone using it and I have never broken a phone because I dropped it on the ground (water will be likely to get in if you drop it in a tub of it). For those primarily interested in battery life with a least some regard to telephone protection, this product delivers.

I've had such positive experiences with the DX-1700 by uNu that when I saw the DX Plus I knew I had to get my hands on it and see for myself if the DX Plus is a worthy successor. Dissatisfied by the majority of existing reviews on the DX Plus, I decided to create something that would give the average consumer, like me, a glimpse of the product before committing to a purchase.As a consultant, I run a hectic schedule that demands mobility and flexibility. Being on a conference call for an hour while driving or working at a client site can be taxing on my iPhone's battery, which initially led me to look for a viable solution to additional battery power. Enter the DX Plus.The Good:1. Competitively priced with a great balance of quality and reliability.2. The DX Plus echoes the aesthetics of the iPhone's design, especially the glossy white and silver trim. And speaking of design, the battery case feels like a cohesive unit. No clumsy wires or additional cables to carry around.3. It works, and then some. I can go an entire day without plugging in my phone to a wall charger, and that includes web surfing, sending/reading emails, and running various apps.The Bad:1. The DX Plus will add some considerable bulk to your slim iPhone.2. The DX Plus adds extra weight.Bottom-line:At 2,400mah, the DX Plus was aimed at a specific target market - power users. That's 10 hours of extra talk time! I've checked the power capacities of other brands and the DX Plus has more juice than most. Indeed, this thing will make your iPhone feel like a mini-tank, but in my humble opinion that's a small tradeoff for the convenience and peace of mind in knowing that you won't be stuck without power when you need it most.

I have had the case for 7 months. I like it very much .The good things are1) The case seems very well made. I purchased a DX-04-2400 White base with silver bumper case, the white piano finish looks every elegant2) The textured feel of the case is good. Less likely to drop it, and not prone to fingerprints and smudges. And it is slightly less likely to fall out of my shirt pocket when I bend over.3) It protects the phone from drops and most types of damage very well. The phone almost bounces ,and I have never had any physical damage to my phone since I use this case.

I liked this case for the time I had it. Only thing is I believed this makes me overcharge my phone, but overall point is that it does it's job.

I bought this as a Christmas present for my boyfriend. When he turns on the battery on the case it makes it to where he can't use his phone. He has absolutely no service when using this case.

Could not be happier with the extra battery life this case permits for my phone! There is nothing worse than going to work or school and having the whole rest of your day in front or you, only to realize your phone is on zero percent! This case give me peace of mind, knowing I have a full extra battery life and I will be fine! And who can beat that price?! I fully recommend!

I read many comments on this case and i was not expecting much. I got it and Pluged the case into my computer and let it sit over night, next morning i put the phone in, and turned the case on, CHARGING! I only had about %50 battery and it charged it all up. It does take a while to charge but gives you the more battery, and allowes you to use a kindle fire HD, charger.

unit is good quality and similar to other units I have tested or used. I will say the shipping times are a little slow, but unit works and does its job very well.

this case is so great if you need extra battery life. The bad part about it is that it really isnt that protective to the front screen. you must charge the case seperately from your phone or else it will mess it up. I went to school with a 20% battery and immediately i turned on the power an left my phone alone and it went up to a 70%.

Have used it successfully with my our iPod generation 4. its smaller than iPhone 4/4s so buttons aren't as accessable as much, but the battery was shot on the iPod and now we can use bluetooth without being plugged in continuously. I initially bought an external battery pack for the iPod but having have two of them connected all the time was a hassle. I Like this better, you have to stick your finger under the frame to get at the shut down and turn on buttoned and there is no way connect headphones. But for bluetooth play with the iPod in our car or boom, it works great.

Great Battery Case. NOTE: uses Micro USB plug for charging - does not have iphone style plug on the outside of the case. So when it is connected to the phone, the only way to charge is to use micro usb. I think most people like me have a bunch of micro usb chargers as well as iphone charges so be prepared to break out the micro usbs for when you want to charge this up.Also, the case doesn't need to be off or on after charging when the case is on the iphone. If you leave the battery case "on", it will just provide power for the iphone 4 or 4s during the day until the battery case runs out of juice. Then the iphone battery will kick in, and this should be *significantly* longer than just trying to run on your iphone battery. Or, if you turn the battery case off after charging (holding down the battery case button for 2-4 sec) it will remain off and the iphone can run on its battery, then when you need it you can use the battery case button to turn it on and charge the iphone.Either way for me it's been about one charge per day, or on a couple days it has been about a day and a half before both need a charge.The iphone will be getting two charges (one with the battery and one with the wall) if you turn the battery case off during the day when unplugged. Or it will just get one charge per day on its battery if you leave the case on... (it will only actually use the iphone battery towards the end of the day, then both will recharge full, then you start out running off the battery case. I think this is better for battery cycles on your iphone - cause you can always get another battery case.The only thing I would say is that the plastic top piece which clicks over the phone to enclose it into the larger battery case is somewhat hokey - the plastic detent clips wear easily and I ended up playing with it, causing it to slide right off in no time. So I had to add tape to thicken the plastic before I slide it on.

The UNu Power battery case for the iPhone is an affordable alternative to the better known Mophie. The case feels solid and fits well. It's also pretty thick, about 3/4 inch, so it's noticeable in your pants or sport coat pocket, not much so in a backpack or outer jacket. It's a hard case that feels like it offers some protection but this is not an Otterbox Commuter.With my phone's aging battery (a year old) and this new case fully charged, you can go a full day, all night, and into the next day with the phone mostly on standby, some talk, a little web browsing. If you use it for GPS navigation, that sucks down power but still you won't run the phone dry even if you stay out late.The worst part: The manual is poorly written by a non-native English speaker. It's unclear in the extreme about whether you drain the phone battery first or the case battery first in order to maintain the built in battery for many more months. It's also unclear how the button on back works, that is when you press it, how do you know if you've turned the battery flow to the phone on or off. (When the case is unplugged from power, if you just turned the power flow on, the charge light on the phone glows green.)There are 4 blue LEDs on back to indicate state of charge. Some people may find them too bright to leave on the nightstand without tossel a washcloth or T-shirt over it. Overall, mostly because of the price the competition, this feels like a good deal. If you're iPhone battery if fading and you need to make it last 6 more months, you're willing to pay $40 for a battery case; it stings to pay $100.

I have owned this for over a week now, for the most part it is great.The good: The charging port acts as a pass through port to the phone, so rather than taking the case off and plugging in your 30pin cable, all you need is a micro usb cable to charge and sync with iTunes. It is definitely meant for big hands (some may see this as a downer however.) The battery makes my phone last from the time I take it off the charger in the morning between 9-10am and lasts until I goto bed at 1-2am.It will take my phone from 10-15% right back to 100% in about an hour Which is great, no more car chargers, no more charging at school or the office. It matches the white iPhone nicely.The Bad: Case gets hot, although it is a once in a while thing, but it happens. Poor internal design. I had to see how the internals worked so I cracked it open (Yes, total geek) The circuit board has a small black plug, like the motherboard case connections in a computer, tiny. One drop and this portion was damaged, however a little solder and realignment fixed it. There is a piece of plastic between the volume + and - buttons, for big hands/fingers this is bad, if it were between the volume + and the vibrate switch it would have been fine, I ended up cutting it out and filing it down smooth to get rid of it, to me it was extremely annoying.Everything considered I would recommend this to everyone, although some may need to slightly modify it as I did. It allows the iPhone to last all day with heavy usage and makes the phone fit better for those of us with large hands.

I had a Mophie prior to this one. The Mophie's mini USB jack became too loose to charge it, so I purchased the uNu. I am frequently on the phone during the day away from chargers. I cycle and at the end of the work day I need enough additional power for at least two hours to run my GPS mapping app, MapMyRide, while playing music, through the speakers, from Rhapsody. The uNu handles it beautifully. Have only once run short and that was more me than it.It is noticeably heavier than the Morphie, but it also has more power, 2400 MAH versus Morphie's 1500 MAH. It has survived numerous drops. The biggest problem is the case interferes with the camera, especially the flash to the point you have to remove the case to take a flash photo. The other slightly annoying thing is that it is more difficult than the Morphie to know if the external battery is on stand-by or connected to the phone.

I ordered the case basically because I travel all the time, or I'm working all over and I want to be able to watch my tv using slingbox on my iPhone 4S. Before I got this case I could watch maybe a 60 minute stream using 4g or a 100 minutes connected to wifi before my battery would be dead. My times are estimates because honestly I don't remember, nor do I care because it was very frustrating always looking for somewhere to plug in my phone.When I got the case and put it on it made my iPhone bulky, kinda ugly, but I guess I should have expected that. The case fits almost perfectly, not perfect because the case is 2 pieces that connect top to bottom. I don't fault them for this because after all I want function not style. The first day I took my iPhone in the new case to work I also took a charge cable(which by the way is not an iPhone cable, it's a micro usb). The micro usb cable plugs into the bottom of the case, thus why a traditional iphone cable won't work. I have been using my case for 3-4 weeks now and the charge cable has still never been used at work. I am one of those people who always charges my phone at night, however during the day my percent has never gone below 86%, and that was on a saturday. On that day I was at the bar with my wife, I streamed a soccer game, an ncaa basketball game(GO KU), and most of an nfl football game with my battery not dropping below 86%.I can't say anything more. It's not the prettiest thing, it is bulky, but it works like a charm. Several of my coworkers have since bought them same model.I made the right choice, and fyi......this is the first review I've ever posted about a product that I like.

Worked pretty well for the first few months. Then it started falling apart and it would get extremely hot when it was charging.

Charger works fine but,it sounds as if the battery itself is loose inside case. Makes a noise when moved side to side.

This charging case only worked for about 3 weeks. Now it doesn't charge my phone anymore. When it did work, it was a really handy case to have since my phone is always dead. It doesn't seem to charge as quick as a regular wall charger, but it does charge it quick enough. Just make sure you always keep the case charged or it won't do you any good.

Worked for about a couple weeks, then didn't charge my phone as much, and I'm assuming that was because the battery was defective. I charged it and it would only give me about 30 mins of charge before it died out.

Not really a super great product but it does work. It only increased my phones battery life about 30% each time when the charger case was full and I guess you can't really expect that much out of a six dollar charging case

It was a good buy, mainly because of the affordable price. It doesn't charge the phone at the same time as the case and, my charger started acting up after a couple of days of using it. My other complaint is that it doesn't charge the phone 100%.But it's really convenient to have for a person like me, I'm usually out of the house 12-13 hours a day, it gets its job done. Very happy with my purchase.

Purchased as a gift, but I installed, and the fit was veerry tight; didn't close fully. Not as simple to "turn on/off" as other units, but the flush pushbutton also does not have the risk of damage as happened to the unit it replaces.

I bought one in February. It stopped charging in May. I took it off the phone and tried charging the phone with its original charger. The phone battery charged. I then tried charging the case without the phone and it did not charge.I got another one in May and in June. It stopped charging. I tested both the charger and phone separately and found that the phone would not charge, the uNu case did charge. When I took the phone in for repair, I found that it needed a new battery which I did replace. I put the uNu case back on and it worked. Three weeks later, the phone stopped charging. I took it in to find that the charger port on the phone needed replacing. I wound up replacing the phone itself with another iPhone 4s and put it in the charger. Both charger and phone are working as expected.I am disappointed that the first uNu stopped working after three months. I'm hoping that this one lasts until September when we can inexpensively update the phone.

Unit was a great design and looked good. Installed on my I Phone 4s was easy. Just slide the 4S into the bottom piece and then slide the top piece on to phone until it clicks and you are done. Would advise charging unit prior to install because it takes 2-3 hours for a full charge. It was good on recharging phone at least 2-3 times during the day. As directed it auto charges at night when you plug it in to recharge. The negative of unit and weak point is the charging cord and plug. It was hard to get it to stay in the unit. And I made a mistake of buying what I thought was a replacement cord and plugged into the unit and damaged the female receptacle on phone and had to throw it away. Could not charge after that. There is a little micro PC Board that your plug connect to and it has to be perfect fit when you plug your charging cord in or you will damage unit........

Poor quality overall, though it does help extend battery life. I have purchased several of these in the past years, and the first one lasted the longest. Now, when I buy a replacement, I use cut pieces of Gorilla tape to tape the edges and the seems to keep it closed. I found that without the edge protection and the seams taped, the unit would disintegrate qhen dropped onto a hard surface. Now the unit is not disintegrating, it just no longer can be charged and charge the phone at the same time. The batter life is also much shorter than it was originally. Very low quality product, but I have not been able to find and decent high quality alternatives.

After a few months of using this charge case (I purchased this to replace the Mophie case that kept failing at the usb input) I noticed that the top part of the case that slides on and off began to loosen and would frequently "fall out" of its track. This began to be somewhat of an annoyance after sometime. The "silver" finish on the sides of the case began to wear off over time and no longer looked nice. It did protect my phone from several falls and drops and it did so without any damage to my phone. As far as a charger, I still use it on my old iPhone 4s that my kid beats up on a regular basis.

so far battery has provided extra life for iphone 4 just as promised.Pros:Like that the battery lights are on the back and dont flash all night long while trying to charge while sleepingsleek modern case, does add length and weight (stays in armband while running but isnt covered completely if it rains)Consdont like that it needs its own charging cordwould like it better if the bottom popped off (rather than the top) so that I could use regular Iphone car charger easily.it's also too easy to hit to the 'charge' button as it is placed on the back of the phone... several times I've activated charging by accident.all in all a good option so far. Will see how long it lasts.Update:been using it for a few days now... really feel like my phone battery is being drained by this battery case. I normally just save the extra battery for events (running marathon, vacations) but since using this as my daily case, I've had to use the extra battery almost daily. It shouldnt be causing additional drain just so I have to use it. decreasing a star.

It worked for the first month then it didn't want to charge after a while.

It worked for one night then broke. I tried contacting the seller and they were kind enough to give me another one, but again it broke so I don't know. I would not recommend this product.

does this case work for any iPhone 4s users?? I have an iPhone 4s but the users manual says iPhone 4 and the case won't charge my phone.. was wondering if it was bc my phone isn't a 4 or bc the case is crap..

when I was looking at this phone case online I thought it would be better than most people said it was. but they were correct this phone case broke on me in less than 24 hours and it was a waste of my money. only thing I liked about this case is the look and feel. other than that the rechargeable part was awful it over heated and than broke. now I can not even get my money back. DO NOT BUY

Honestly, I don't know why I bought this product. I don't travel a whole lot so I'm always close to an iPhone charger. However, with that being said I would like to point out that the battery life isn't very long, especially when it's charging the iPhone. After about 30 minutes or less it loses charge and the iPhone keeps blipping as if one were to repeatedly plug in and unplug it. The battery doesn't last very long even when it's not charging the iPhone so one would need to recharge the case more often than the iPhone in the first place. With all that in mind, the product is handy and would most likely be most useful to someone who is not within immediate proximity of an iPhone charger for elongated periods of time.

I like the case for it's design and protection. I don't like the fact that the case only gives a hour charge and the charge does not even fully charge the phone all the way. Second, once the case has finished the charge, I have to recharge the case again. Not what I expected at all but for the price that I paid for it, I only got what I deserved

I need to be able to remove the phone from the case to dock the phone to various speakers etc. The case is very difficult to remove once the phone is inserted. There is no 30 pin external plug on the case to attach it directly to a docking plug. Also it seems my phone loses power more quickly with the phone case installed than it did when I used no external battery power. This defeats the purpose of the charging case in my opinion. So I returned the charging case and went back to the original non-charging case, and I will use my external RAV charger instead. I do like the external LED's on the back that tell you how much charge remains in the case battery. I would prefer a one piece case which is softer and easier to remove and put on.

I loved this uNu Power DX Plus much better than my Moto which died after three years - but after less than a month the uNu extended battery won't charge although it will charge the IPhone. However I needed an extended battery for the phone not just a protective case.

Initially I loved this case, got it put my phone in it and it charged immediately! Then came time to charge the case, plugged it in and it just wouldn't charge so, decided well you must have to charge separately so, I attempted to remove my phone from the case and had a little freak out because it wouldn't budge! I actually had to take a butter knife to jimmy my phone free!! Then I plugged the case in to charge and it took 6 hours! What a waste of $39! Only positives are it looks good and does charge your phone but, who wants the hassle of having to remove your phone (and that is difficult) to charge a case for at least 6 hours! Wasted my money :( Over priced, underwelmed!

"Made with state-of-the-art technology, the DX allows users to use any function button with case one, sync and charge with the case equipped, and visualize current battery levels (of the case) via the sky-blue 4-LED battery level indicator."So says the description. 10 days later and I can no longer charge my phone; I have to charge the case, then use that to charge the phone, then charge the case. Very inconvenient. The manual says something about the case having an automatic switch that will allow your phone to charge first, then will switch to charging the case. This was true for 10 days.Quality control is.... lacking. Someone forgot to completely paint the camera lens section of the case silver, and it inexplicably fades to black. The two halves of the case have never really seamlessly fit together. Has a cheap feel to it which I was prepared to overlook, but the other issues just make the package undesirable. Will be returning it shortly.

Connector failed after 5 months, but it only took about three months to notice a considerable changes in the time it held a charge. Poorly made. Top section comes off too easily and phone slips right out after it. White effect on pictures from the glare flash off of the plastic is a hint of the design quality.

The battery life was great, however the MicroUSB charging port did not hold up. My first issue started with having to wiggle the cable, or apply downward pressure to keep the device charging. After about a month the USB guts fell out. As far as a case, it is nice, and the battery life was great when I could charge it.

Waste of money. It didn’t work but the company gladly refunded me my money which I was thankful for.

This was a very cheap case. It stopped working after a few days of use. I wouldrecommend other cases before this one. Spend a few more dollars to geta better deal...

Worst case I've ever bought. Charged it over night, tried it in the morning and it wouldn't charge my phone or take a charge anymore. When i wanted to return the product, they told me to keep it and would only refund me HALF. Why would I keep a broken charger case I never got to use? SAVE YOUR MONEY to buy a case that will actually work or from a company that actually respects their customers!!

Some may say that it doesn't matter how cheap it is, if it works, it works! Well this worked for about 3 charge cycles and then began to offer about 7% battery to my iPhone 4 before dying. Also, while trying to pull the case off The iPhone I gripped it on either side with my hand was shocked with electricity quite abruptly. Quickly went in the trash after that, if rather not get shocked again.

Horrid terrible quality. A wad of spit on the ground is more useful. Who takes the time to go into business, get the license, insure the company, hire workers, set up merchant services, and then sell useless, no quality, junk, just to get complained about. Freakin idiots. Knock knock!!! Anyone from the company reading this, (((DING))) here is an idea!! Take your product and go try it out, then when it breaks try it again, then when the next one breaks try it again, then when that one breaks get another one and try it again. Then, (((if you give a s***))) maybe you will feel all of our frustrations. There are amazon sellers out there who deserve good reviews. Why you ask? BECAUSE THEY GIVE A DAM ABOUT WHAT THEIR PUTTING IN THE HANDS OF THEIR CUSTOMERS AND ARE NOT TRYING TO MAKE A QUICK BUCK!!!!!!!..........................................wake up you freakin crooks!!!! Nobody wants your trash trash trash. BUYERS BEWARE!!! BUYERS SAVE YOUR SANITY!!!! BUYERS MOVE ON!!! BUYERS OTHER PEOPLE WHO CARE ABOUT PUTTING QUALITY IN YOUR HANDS DESERVE YOUR MONEY!!! Not this thief. So I contacted the seller and explained the problem with the first TWO DEFECTIVE MOUNTS and he promised it was a fluke. Sent another. Wanna know what happened? The same god damn thing. Why sell something your going to have so many complaints about. Good luck poor unassuming buyers. Don't say I didn't warn you. This seller is a predator. And seller, do not contact me again. I'm tired of your lies, and NO!!! I'm not going to re-revise my review again if you send me another. Because, just like you, it's garbage too. (((Spitting on the ground at sellers feet)))

Got this battery case. First thing I didn't like is that the screen of the phone is the highest point where my other battery case has a lip of about 1/16" which isn't much, but when I set it down the glass doesn't rest on the surface. I used the charging function once and it charged the phone, but the case literally got too hot to touch in one of the bottom corners where the battery was. It was so hot I removed it and turned it off for fear it would damage the phone. I did try it again but it wouldn't work anymore. I'm guessing it got so hot it fried itself. Learn from my mistakes. Spend a little more money and get something worth having.

Battery stopped taking a charge 3 days after my return window closed. Worked at 100% up until then with no hiccups. Only lasted about 6 weeks with a recharge every other day as I use my phone online a lot.

Battery seemed to charge, but did not allow connection to Iphone or allow charging of Iphone by cord. Would not indicate further charging of case alone. Seems to have been a connection problem. Returned for refund. Not willing to try again.

It seemed to work for a day and then problems occurred. The first day it worked fine. Then it would work on some of my charges but not others.Now it no longer charges the phone when connected to a USB power source. The last couple of days I have to take out the iPhone and charge it separately to charging the power pack.

Product stops functioning after 2 weeks. It will not charge. Besides, it is very difficult to detach iPhone 4 from it. I would not buy it again.

This was probably a good charger case before Apples recent IPhone 4s software upgrade, or so the "Genius Bar" at the Apple store informs me but I bought this case after I upgraded the software in the phone and not only did it not charge my phone but it was depleting the charge my phone had. The charger itself was fully charged at the time too. My IPhone 4s is back in its Otter Box" and the uNu has been returned.

I like the product...alright. The top of the case comes away from the bottom, on occasion. A light touch of hot glue or a very light adhesive works fine to keep it in place. I'm not fond of when you unplug it from the charging cord, it automatically defaults to the charge mode. Also, there are four LED charge indicator lights on the back of the unit, one has never worked.This unit is much thicker than my old Mophie and gives my iPhone the same hour usage. My Mophie was only 1700MAh and this one is rated @ 2400MAh. Something does not jibe. All and all...it's O.K....for the price.06/29/2013-Update: It died. Doesn't charge. Returning immediately.