Last Updated: November 24, 2018 (Refresh Now)
iPhone 6 6s Battery Case Anker Ultra Slim Extended Battery Case for iPhone 6 6s 4 7 inch with 2850mAh Capacity 120 Extra Battery Apple MFi Certified Black
Last Updated: November 24, 2018 (Refresh Now)
7.4
SCORE
/10
Total Reviews
999
Old Reviews
232
Unverified
46
Spam Test
!
2850 mAh
BATTERY CAPACITY
17 hours
TALK TIME
Yes
3G
0.23 meters
SIZE
Review Analysis - 721 recent, verified reviews
Detailed Mode
Charging
291charging, anker, charger, battery, charges
+61%
-39%
" ... I am very grateful and remain happy with my second Anker case that has lasted a year and allows my phone to stay charged for days. ... "
" ... I like that it allows me to charge my iPhone with a micro USB cable. ... "
" ... My daughter's iPhone 6 had fast draining battery problem. ... "
" ... Great charging, fragile case, would hope to have a product that lasts longer than a year. ... - great battery life and charging on the phone ... - no issues with loss of charge / recharge capacity ... "
" ... Keeps my phone charged for multiple days at a time, with a single charge. ... "
" ... Anker promptly replaced the unit and the replacement works fine. ... "
" ... Also gives me a 100% charge. ... "
" ... Being able to slide the top of ensures you don't damage the charging pin and it is very solid when put together. ... "
Battery Life
191charge, battery life, recharge, charged, charging
+73%
-27%
" ... Great battery power extender. ... "
" ... It’s somewhat sleek for a battery backup. ... Good battery storage. ... "
" ... After the recent upgrade to iOS 11, my iPhone 6S battery seemed to drain a lot faster that before. ... This case more than doubles my phone's battery life, and it's much slimmer than other battery cases out there. ... "
" ... My daughter's iPhone 6 had fast draining battery problem. ... "
" ... I bought this battery case almost a month ago and can happily say that, thanks to this case, I don't expect to need a new phone any time soon. ... "
" ... - great battery life and charging on the phone ... - no issues with loss of charge / recharge capacity ... "
" ... Keeps my phone charged for multiple days at a time, with a single charge. ... "
" ... A must if you upgraded to IOS 11, which destroys iphone battery life! ... "
Build Quality
169cracked, top, dropped, months, fell
+57%
-43%
" ... The design is sleek, not bulky, and seems sturdy. ... I have dropped my phone at least three times since I put this case on it, and it hasn't shown any signs of damage other than a tiny scrape/scuff on the back of the case where it skidded on asphalt (when it fell out of my coat pocket as I was getting out of a taxi . ... "
" ... I love this case. ... "
" ... I contacted Anker and they replaced the case. ... "
" ... I loved that the top was detachable, so it didn't damage the el connection when sliding the phone into the case. ... "
" ... Love this case. ... "
" ... This case has made the phone fuctional again. ... "
" ... I just got the case this week and absolutely love it. ... "
" ... I like this case. ... "
Product Reliability
124working, year, stopped working, anker, weeks
+38%
-62%
" ... I'm so frustrated, not even soix months and it broke and cracked when it was dropped. ... "
" ... 4 months and it doesn’t charge anymore . ... "
" ... Is mine defective?! ... "
" ... Stopped working after about a week of use. ... "
" ... I've had this case for about 6 months, and it worked for about 5 of those months. ... "
" ... But my battery back lasted just a few weeks. ... The replacement one lasted less than a year. ... The third one lasted about two months. ... "
" ... Stopped working after 2 days ... "
" ... like it shutting off randomly. ... just in case it is this case that caused my problems. ... "
Fit
104top, pocket, iphone 6, 6s, cracked
+55%
-45%
" ... I was able to turn my phone back on just by turning the case on. ... "
" ... I've had a bit of a problem finding an earphone plug that fits all the way thru to the phone. ... "
" ... So far, this iPhone battery case has not only worked great but it is slim enough, not too heavy and so much easier to use than the others. ... "
" ... Nice fit and finish. ... "
" ... This case has made the phone fuctional again. ... "
" ... Fits like a glove without being bulky and does the job GREAT. ... "
" ... I dropped my phone quite a few times and the phone still works perfectly. ... "
" ... My iPhone 6s looked too much like my last phone (HTC One M8 — Apple actually modeled the iPhone 6 after the HTC One, contrary to popular opinion, they signed an agreement, it's all official) so I threw a skin on it. ... Now the phone slides in and out of the case easily, and I can go back to my TPU case when I want a small phone and don't need the extra battery life, and use this when I need battery life. ... "
Design
87slim, design, sleek, love this case, finish
+84%
-16%
" ... It doesn't look bulky and its soooo useful. ... "
" ... The design is sleek, not bulky, and seems sturdy. ... "
" ... I love this case. ... "
" ... Nice fit and finish. ... "
" ... The case is very nice. ... "
" ... I look forward to having this battery case again. ... "
" ... Love this case. ... "
" ... Case is pretty boring but well worth any appearance for this type of feature. ... "
Marketplace
43amazon, sent, thank, advertised, thank you anker
+88%
-12%
" ... Hank you Anker and a special thanks to Shae! ... "
" ... Thank you Shae. ... "
" ... Anker direct also supports the customer service of this product. ... "
" ... Excellent Product, as advertised. ... "
" ... So glad I did the research and read your reviews on Amazon before purchasing. ... "
" ... Thank you for standing by your product. ... "
" ... Thank you Julia and Anker!! ... "
" ... I gave her my Amazon order number and verified my address. ... The lady I contacted was very nice and after about two days they emailed me back. ... "
Controls
38power button, buttons, turn, volume buttons, switch
+24%
-76%
" ... The only way I've found to stop it is to keep press-and-holding the button over and over again until it stops this. ... "
" ... I miss the switch toggles of the Mophie, for it has openings in the case to access the volume, on/off, battery, etc. ... I sincerely miss the battery switch toggle, for the Anker's push button is small and not easy to use. ... "
" ... Also, there aren't any buttons for volume/power - so the iPhone buttons themselves are inset from the case requiring a lot of added pressure just to operate the phone. ... They really should've added buttons for the volume/power. ... "
" ... One negative is after using multiple times daily, after a month the activate button becomes difficult to use. ... "
" ... I have to manually turn it off. ... "
" ... The plastic around the volume buttons is thin and broke with the first 2 months. ... "
" ... First the little piece above the power button snapped off, then the piece above the volume controls snapped off about three weeks later. ... "
" ... Only concerns were that lack of information describing need to hold button to turn on item would have been nice. ... "
Cables
34charge, anker, lightning, short, usb
+38%
-62%
" ... It would have been nice to STILL be able to USE my lightning cables to charge the case and not have to buy a longer mini whatever plug OR for Anker to send one that is longer than 10 inches to use. ... "
" ... I was provided no charging cable in my package. ... "
" ... The case doesn't like any cables than the one that comes with it which is less than a foot 1st problem. ... "
" ... The lightning port no longer makes contact with my phone resorting me to have to use the lightning cable provided by apple. ... "
" ... It looses one star because I had to purchase a micro usb charging cable. ... "
" ... I immediately had to go out and buy a longer cable since it's so tiny. ... "
" ... The cable it comes with is VERY short. ... "
" ... the charger hole where the cord goes in broke after a few months and now has to be perfectly still for it to charge otherwise it beeps like a pin ball machine because it looses connection with the charger with the slightest move. ... "
Ports
34micro usb, usb, lightning, micro usb port, charge
+38%
-62%
" ... within 6 months, the usb mini port was no longer working. ... "
" ... The bottom of the case with the speaker ports extends well past the actual size of the phone. ... "
" ... Ruined my phone's charging port. ... "
" ... This happens whether the phone and charger are plugged into to an USB port to charge or if the phone is being powered by the charger alone. ... "
" ... After using the new case and cable, I agree with another reviewer that the port is causing the usb connector on the cables to fail/not stay on. ... Case worked fine for about a month then the micro usb port failed. ... "
" ... The lightning port no longer makes contact with my phone resorting me to have to use the lightning cable provided by apple. ... "
" ... However, trying to use headphones was a pain because you needed an adapter. ... "
" ... It looses one star because I had to purchase a micro usb charging cable. ... It came with a headphone extender because most headphones will not fit in the small port. ... "
Size
34pocket, case, bulky, lightweight, weight
+91%
-9%
" ... I slapped a PopSocket on the back of mine and it makes it much easier to hold and carry! ... "
" ... Great for traveling. ... "
" ... I always keep my phone in it's own inner pocket in my bag. ... Nothing with it and nothing besides soft items around the pocket. ... "
" ... Now the phone slides in and out of the case easily, and I can go back to my TPU case when I want a small phone and don't need the extra battery life, and use this when I need battery life. ... "
" ... easy in the pocket. ... "
" ... Pros: Lightweight, thin, hard case with a slightly grippy feel to it. ... "
" ... I take it with me everywhere. ... "
" ... very slim for the power it has. ... "
Device Compatibility
28iphone 6, charge, transfer, sync, recognize
+68%
-32%
" ... I was able to turn my phone back on just by turning the case on. ... I’ve since got a new phone ... "
" ... Basically, I made it look like a phone inspired by the very first Apple computer, back when Apple was the coolest company in the world. ... As an Android guy, there was only one way I was going to rock an iPhone, and that was it. ... "
" ... Works great for iPhone 6. ... "
" ... Which is great even if you use your phone all the time if you leave your home with it charged in the morning you're guaranteed to get back home with a phone that's still more than 50%. ... "
" ... There was so many times this device saved me. ... "
" ... It automatically turns itself off after the phone reaches 100%, or at least it seems like it does. ... "
" ... I like it because my iPhone will NOT last through the day - and now I use this Anker as my 'back up' and drop my iPhone in it when I need to. ... "
" ... I have previously purchased and Anker battery for my Apple MacBook Pro. ... "
Price
25money, worth the money, worth, mophie, waste of money
+72%
-28%
" ... Well built as good as the Mophie case I think 👍👍👍 but half the price ... "
" ... And for a lower price. ... "
" ... I think this is a great product, second best only to mophie, great price. ... "
" ... good deal for the money. ... "
" ... This thing is worth every penny. ... "
" ... It is not as bulky as my previous mophie and it is much sleeker and the price cannot be beat. ... "
" ... MONEY WELL SPENT! ... "
" ... Other than that, works well, great case for the price. ... "
Returns
25sent, return, replacement, returning, defective
+32%
-68%
" ... I had resigned myself to buying a new phone when I get home, but shortly after I returned home (and removed this case), I tried one last time to charge it. ... "
" ... I sent this item back because of this issue. ... "
" ... Returning , worked for a few weeks and now won't stay on ... "
" ... Unfortunately, after I got home, it will not turn back on. ... "
" ... Maybe I just got a defective one, but it stopped working right after the return window passed. ... "
" ... Wish I could return it. ... "
" ... Pretty annoying to go through the returning process. ... "
" ... I bought one recently and was defective and returned. ... The second one was also defective. ... "
Comfort
25wear, top, fall, slip, fingers
+44%
-56%
" ... The phone has not taken any significant drops or falls, I would say normal wear and tear during this time. ... "
" ... Having to open the case 2 times a day leaves me with the feeling the snappy things holding it together will wear out at some point because of the SHORT NON APPLE power cord supplied! ... "
" ... The mistake was not removing the skin before putting it in this case. ... I got it out — and I do not recommend trying this — by slipping a thin flat-head screwdriver between the phone and the case just above the 3.5mm jack. ... "
" ... The small part that comes off can get lost easily, so make sure you put it right back on. ... "
" ... Top portion fell off in first week. ... "
" ... My wife has a Mophie that is more slippery to me, and I like this better. ... My sausage fingers don't work will with those sorts of covers. ... My problem is that after 6 months, it is literally falling apart in my hand. ... It just seems like the case has become really brittle and is literally falling apart in my hand. ... For the record, the phone has not been dropped, all of this is due to wear from normal use on my desk in in my pocket. ... "
" ... Now the top falls off easily. ... "
" ... Mine started to fall apart in less than a year. ... Without those the entire top portion becomes loose and eventually it just started to fall off every time I took my phone out of my pocket. ... "
Screen Protection
22protection, glass screen protector, dropped, crack, glass
+27%
-73%
" ... The other side was cracked partway to the speaker. ... "
" ... I cracked my tempered glass screen protector, and damaged the aluminium edge of my phone just above the jack. ... "
" ... Also a 2 foot drop on the wood floor cracked my screen as there's no protection on the front ... "
" ... It feels strong and high quality, but after only a couple months of owning the front edge cracked. ... "
" ... First drop of my phone broke the screen in this case. ... "
" ... However, I am only giving it four out of five stars because I wish that the edges of the case were not flush with the iPhone glass itself. ... "
" ... It cracked when it was dropped! ... "
" ... Additionally, the edges are flush with the iPhone's glass at the top portion. ... "
Setup
16anker, instructions, contacted, told, remove
+88%
-13%
" ... However, the anker support team was very helpful and sent me a new case at no cost, so that is definitely an assurance when purchasing their products ... "
" ... Follow up: I was contacted by Julia of Anker Support the next day. ... "
" ... The lady I contacted was very nice and after about two days they emailed me back. ... "
" ... Very professional, courteous and rapid. ... "
" ... Was told it works beautifully ... "
" ... Way cheaper than what other "repair" shops charge. ... "
" ... Updates to follow. ... "
" ... Easy install, unfortunately the touchscreen doesn't work very well. ... "
For Travel
16traveling, long, day, trips, abroad
+94%
-6%
" ... Great for traveling. ... "
" ... Recently, I was on a week long trip to NY. ... "
" ... Got the case and charged it and was ready to use it during a family trip. ... "
" ... To make a long story short, it was a one-way trip. ... Or your phone will make a one way trip into the case, and you won't see your skin again. ... "
" ... I take it to outdoor events with me like concerts and festivals, or even if I'm traveling or away from home for a long period of time and it never lets me down! ... "
" ... Purchased for traveling, works great and keeps my phone charged throughout the day while I snap pictures and take video. ... "
" ... I can go a whole day without having to plug in now, great for heavy phone use at work or for a long motorcycle ride. ... "
" ... I use it al the time during traveling. ... "
For Kids
13bought, son, wife, well, teenage
+100%
" ... Wife loves this product. ... "
" ... I have bought about 7or 8 of these cases for numerous people as presents and everyone loves them as well. ... "
" ... Got one for my daughter too! ... "
" ... My son loves your product! ... "
" ... I bought this for my son and he really likes it! ... "
" ... my son says this is a lifesaver. ... "
" ... I purchased one for myself and loved it so much I bought four more for my adult children. ... "
" ... I bought this for my grandson and he loves it! ... "
Band
11falling apart, fall, 6 months, top, literally
+9%
-91%
" ... Top portion fell off in first week. ... "
" ... The case is a little weaker, as my case is falling apart in less than 6 months of owning it. ... "
" ... My problem is that after 6 months, it is literally falling apart in my hand. ... It just seems like the case has become really brittle and is literally falling apart in my hand. ... "
" ... Mine started to fall apart in less than a year. ... "
" ... fall down once and broke. ... "
" ... The casing by the power button broke about a month ago causing the top piece to fall off. ... "
" ... Sadly whole back cracked and eventually fell off. ... "
" ... After a month or so, parts of the case started cracking and eventually falling off. ... "
Delivery
11new, arrived, delivery, days, posting
+73%
-27%
" ... Same day order and delivery, made it on time as promised. ... "
" ... Received the product today. ... It was at 25% battery upon arrival. ... "
" ... A new case was shipped in less than 5 days after posting my review. ... "
" ... When I first received the item, it was working great. ... "
" ... Bought as a gift and was well received. ... "
" ... Thank you for the prompt delivery! ... "
" ... Arrive on time. ... "
" ... Service delivery was quick!! ... "
Ease of Use
10easy, remove, little, installation, easy to use
+90%
-10%
" ... easy to use. ... "
" ... That's convenient ... "
" ... Easy to install, easy to use, very slim design and great protection too. ... "
" ... Easy install, unfortunately the touchscreen doesn't work very well. ... "
" ... Ilike it - Easy to install - should have one for Iphone 6 plus ... "
" ... Low-profile, lightweight and easy to install/remove. ... "
As Gift
10bought, christmas, loves, boyfriend, wife
+100%
" ... Purchased this item to give as a gift for my boyfriend and he absolutely loves it. ... "
" ... Bought as a gift and was well received. ... "
" ... bought it for my grandson, he loves it. ... "
" ... It was the perfect Christmas present for my nieece ... "
" ... This (I was told) was the best xmas gift ever. ... "
" ... bought it for a gift and they love it! ... "
" ... Received as a Christmas present and I LOVE this case! ... "
" ... Bought this a s a gift for my wife. ... "
Sound Quality
10speaker, sound, bottom, near, crack
+50%
-50%
" ... I noticed one night that the case had cracked in two places on the bottom, near the speakers. ... "
" ... Note that this is **NOT** a waterproof case—but in my case (*pun sound*), this case blocked enough water that, although the phone bricked a few hours after its split-second plunge, an Apple Store was able to revive the thing once we got back from visiting the grandparents. ... "
" ... I should have listen to previous reviews. ... "
" ... It only sounds in one side. ... "
Product As Described
10product, works as advertised, works, described, see
+90%
-10%
" ... Excellent Product, as advertised. ... "
" ... They asked that I send them some photos. ... "
" ... In general, it performs as advertised. ... "
" ... See the attached pictures. ... "
" ... Works as advertised. ... "
" ... works just like advertised ! ... "
" ... Just as description stated. ... "
" ... Works as advertised ... "
USB
10micro usb, port, micro usb port, unplug, slowly
+50%
-50%
" ... After using the new case and cable, I agree with another reviewer that the port is causing the usb connector on the cables to fail/not stay on. ... "
" ... While the micro-usb connector location is not very compatible with any of my car holders or cradles, I can live with that. ... "
" ... Every time I unplug it, it feels as the USB port is going to come off. ... I unplug it very slowly and try to charge it only when really needed because of the USB port. ... It might be just me that feels the USB is about to come off, but I rather not risk it so I do it very slowly. ... "
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Specifications
Battery
Battery Capacity: 2850 mAh
Talk Time: 17 hours
Connectivity
3G: Yes
Number of USB ports: 6
USB: Yes
Body
Size: 0.23 meters
Recommendations
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