Best Battery Cases for iPhone 6S & iPhone 6S Plus

Best Battery Cases for iPhone 6S & iPhone 6S Plus

iphone 6s

Your iPhone 6S Battery sucks? or you are not satisfied with the battery life?

You can either keep it on charging especially when you are working or you can use a battery case for iPhone 6S and iPhone 6S Plus to get some extra juice of battery. You can read about the best iPhone 7 battery cases as well.

The Apple iPhone 6s and iPhone 6s Plus come with a substantial battery enough to use for a day without charging with normal usage. But, at times, even that is not enough. Because of all the background apps, camera, and other nifty features of the iPhone 6S and 6S Plus, the battery can drain pretty quickly.

Apple also sacrificed on the battery life when aiming for a sleek and thin model. Most users want their iPhone’s battery to last longer and can’t afford to charge it numerous times a day. This is where the battery cases come into play.

Benefits of Using a Battery Case for iPhone 6S and 6S Plus:

There are a few ways of increasing your iPhone’s battery life but this means disabling some useful services, using minimum graphics and other limitations.

But if you want to use all features and still you do not want to worry about the battery life, the best option is to use a battery case for your iPhone 6S or 6S Plus. A battery case will not affect your iPhone in a negative way. The only slight drawback is that it will make your device slightly heavier and bulkier, but it is well worth the increase in battery life.

By using a battery case you won’t have to worry about running to find a power socket because the case will recharge the battery instantaneously. An alternative option to use a battery case is buying a power bank, but carrying it around will be tedious. Furthermore, a battery case offers the added benefit of protection for your iPhone so ultimately it is the better choice.

Best Battery Cases for iPhone 6S & 6S Plus:

If you have decided to go for a battery case as a way to improve you iPhone 6S battery life then there are quite a lot of cases out there. There are various factors to consider when choosing a good battery case for iPhone 6S and 6S Plus, like design, battery life increase, material, protection etc. So, just to help you out in picking one, we are going to list the top ten iPhone 6s and 6s Plus battery cases available in the market.

A lot of these have similar features but each has its own set of pros and cons. There are also a few innovative cases out there if you are looking for something different. Also, the good news is, that the cases for iPhone 6 will work for iPhone 6S and the cases for 6 Plus will work with iPhone 6S Plus.

So, without further ado, here are the best cases round up:

Tylt Energi Sliding Power Case for iPhone 6/6s

iphone 6s

Price: $29.99
Cap: 3,200mAh
Weight: 127g
Color: Black

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Basically, all battery cases are quite similar when it comes to the basics. Usually, there is only a slight variation in size, capacity, or design. But, the Tylt Energi Sliding Battery Case for iPhone 6S and 6S Plus is quite a bit more innovative than that.

Here’s the deal:

Tylt case is actually not one but two cases. One is the power sleeve, which is just a standard battery case, but the other one is an inner protective case for your iPhone which you can also use when you don’t wish to carry a battery with it.

Tylt Energi Sliding case is best for people who want to carry a battery case occasionally and need a slim protective case for daily use. The inner case is thin is stylish, it is easy to fit and robust. The battery case slides above the inner case so whenever you need a power bank you can just slide the outer battery case is and it will perfectly fit your iPhone and the inner battery case. The case is easy to slide and it is not tricky to insert or remove the battery case.

When both parts of the case are linked it is one of the bulkier cases in the market. But since it provides the advantage of just sliding off the battery part and still have your iPhone in the protective cover, it is well worth it.

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Mophie Juice Pack Air Battery Cases for iPhone 6S/6S Plus

iphone 6s
Colours: Matt Black, Gloss White, Gold

Mophie Juice Pack Air for iPhone 6/6s

Price: $89.95
Cap: 2,750mAh
Color: Black
Weight: 99g

Mophie Juice Pack Plus for iPhone 6/6s

Price: $119.95
Cap: 3,300mAh
Color: Black
Weight: 110.6g

Mophie Juice Pack  iPhone 6 Plus/6s Plus

Price: $89.95
Cap: 2,600mAh
Color: Black
Weight: 110.6g

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When it comes to battery cases for iPhone 6S, Mophie is the leader in the market and rightfully so. When it comes to protection, their cases are faultless. Mophie battery cases for iPhone 6S and 6S Plus use rubberized support pads to protect the phone from hard falls.

Although battery capacity isn’t the highest among other battery cases but it does provide a reasonable amount of battery life. The cases come with a micro USB cable for charging along with a headphone extension lead.

The Mophie is a simple case, and while it lacks the sleekness of iWalk’s case and the innovative design of Tylt’s, it is still a strong competitor and a market leading battery case brand for a reason. There are cheaper cases available in the market but they don’t offer the stability and reliability of Mophie’s cases.

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iWALK Chameleon Immortal i6 Power Case for iPhone 6S/6S Plusiphone 6s


Price: $69.99
Cap: 2,400mAh
Weight: 87g
Color: Grey, Black, White

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The iWalk Chameleon Immortal i6 Power case is one of the sleekest and lightest battery cases for iPhone 6S and 6S Plus in the market. If you want to keep you iPhone as slim as possible while using a battery case this should be your go-to choice. The main reason that this case is so thin is because of its small battery life capacity. It has a capacity of 2,400 mAh which will only double your iPhone battery life i.e. it gives you double battery life than a single full recharge.

iWalk’s battery cases for iPhone 6S and 6S Plus are however slightly wider than most cases because of its military style air cushion bumper that protects the case from the sides. Because of this, the case offers a substantial amount of impact protection. The case also offers a good grip. The buttons are overlays instead of cut outs this also contribute to the robustness of the case.

Another pro of this case is that it offers pass-through technology, which allows you to charge your iPhone case and your iPhone simultaneously.

The one slight drawback of this case is that it is difficult to remove from your iPhone, detaching the iPhone from the case is tricky and requires too much of force.

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Phonesuit Elite 6 Battery Cases for iPhone 6S / 6S Plus
iphone 6s

Colours: Black Metallic, Blue Metallic, Red Metallic, Dark Silver Metallic

Phonesuit Elite 6 Pro battery case for iPhone 6/6s

Price: $89.99
Cap: 3,000mAh
Weight: 102g

Phonesuit Elite 6 Pro battery case for iPhone 6 Plus/6s Plus

Price: $109
Cap: 4,200mAh
Weight: 140g

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If you want strength, durability, and style in your battery case then try the Phonesuit Elite 6. Phonesuit cases are built with high-strength polycarbonate. The cases offer a decent amount of protection in a stylish sleek case. If you want to prioritise sleekness then you should go for Phonesuit instead of Mophie. Phonesuite offers a substantial battery life of up to 4,200 mAh which is one of the highest battery life in the market.

The cases also feature innovative touch control technology which utilises multiple sensors that allow users to control iPhone 6s’s power output that eliminates the need for physical buttons and also check battery status. This might not be a huge feature, but is an innovative add-on that sets Phonesuite apart from other cases.

Other features of Phonesuite include iTunes syncing and pass through charging. Both of which are great time savers because to allow you to charge and sync without having to remove the battery.

The case is available in several colours including Black metallic, Blue metallic, Red metallic and Silver metallic. The case offers drop prevention as well as knock protection through metallic rubber composite coating. It also provides a good firm grip.

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Anker Ultra Slim Battery Case

iphone 6s


Price: $40
Cap: 2,850mAh
Color: Black

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Anker’s Ultra Slim Battery case isn’t the most stylish or the most robust case out there but in its own simplistic way it is one of the best ones in the market. The battery case is impressively thin despite sporting a 2850 mAh battery.

The case is simple and easy to remove and install. It has a detachable top, so to insert the phone detach the top, slide your iPhone 6s in the bottom part of the case then snap the top back on. There is a button on the case that turns on the battery’s charging. The button also toggles the four LED lights at the bottom back of the cover that indicates how much battery life is left in the case.

Anker’s case is not the most stylish or innovative ones but it gets the job done smoothly. The case offers an acceptable level of protection and is quite user-friendly and easy to use. The case has a similar design to standard battery cases in the market but it features softer curves rather than edges.

One flaw that the Anker case has is that it doesn’t offer a premium feel. But, despite that, the case does not feel cheap in hand. The matte finish of the cover is also prone to fingerprints, but if you value performance and a thin design over look and feel then this is the best case for you.

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Emtec Power Pouch
iphone 6s


Price: $39.99
Cap: 6,000mAh
Weight: 240g
Color: Grey

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Like the iWalk cases and the Tylt Sliding Power case Emtec, U500 Power Pouch brings something new to the market.

Here’s the deal:

The Emtec power pouch is a small purse that you can slip your iPhone 6s into instead of a standard design battery case. It comes with a Lightning connector which you can connect to your iPhone when you need to charge it.

This Pouch lies somewhere between a power bank and a battery case. There is a standard USB cable which you can use to charge the Power Pouch. The Emtec Power Pouch has also been officially certified by Apple.

The case doesn’t offer a lot in terms of protection and it is heavier than most cases, but it also offers a whopping 6,000 mAh battery life. Another advantage of this pouch is that it is compatible with iPhone 6s, iPhone 6, iPhone 5, iPhone 5s, and iPhone 5c.

It is great for users who don’t want their devices to be strapped to a bulky battery case when using their iPhone. It is an interesting alternative to both a simple battery case and a power bank. You can easily carry around your phone in a slimmer case or in no case at all when not charging your device.

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Savfy Battery Cases for iPhone 6S and 6S Plus

iphone 6s


Price: £21.99
Cap: 3,200mAh
Weight: 102g
Color: Black, Gold, Silver

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The Svafy battery case is thinner than Mophie battery cases despite offering a larger battery capacity of 3,200 mAh and it is also less expensive than Mophie’s cases. The battery case market is overflowing with Chinese imports and Svafy is one of the better cases currently available at an affordable price.

The Svafy case offers enough power for a full recharge. The case sports a hard shell back plate and a solid looking bumper. The case also features LEDs that indicate the battery life of the case. To install the case you fit the iPhone into the back plate and the snap the bumper over.

If you are on a budget then Savfy has a few other cheaper models also.  The case comes with a charging cable. There is also a pass-through jack included so that angled headphone jacks will fit.

But there’s a catch, the case is a little tricky to remove. But, apart from that it is durable and has a robust design. It is reasonably lightweight even though it features a high capacity battery of 3,200 mAh, it is also cheaper compared to most cases.

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EasyAcc Battery Cases for iPhone 6S and 6S Plus

iphone 6s


Price: $34.88
Cap: 3,200mAh
Weight: 99g
Color: Black

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The Easyacc case is certified by Apple. It offers good protection and feels robust in hand. There isn’t anything new when it comes to design. The battery capacity is a substantial 3,200 mAh.

The EasyAcc iPhone 6S battery case also comes with a headphone jack extender for users of angled or for those that are short non-Apple headphones. It also includes a Micro USB cable for charging and to charge all you need to do is just plug in the cable and it begins to charge.

The truth is, while there isn’t anything new to shout about compared to some of the iPhone 6s battery cases like the Tylt sliding case, the EasyAcc case is solidly built, offers a decent amount of battery life, and  comes at a decent inexpensive price.

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Lenmar Maven Power Cases for iPhone 6S/6S Plus

iphone 6s


Price: $79.95
Cap: 3,000mAh
Weight: 96g
Color: Black

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Several cases available in the market are hard to remove and tricky to install sometimes but Lenmar Maven Power case is simple to remove and user-friendly.

The one small detail that makes Lenmar Maven stand out is it’s stylish energy button.Unlike standard LEDs, the Lamar Maven indicated the case’s battery life status by flashing sections of the X logo.

The case is certified by Apple and thus, it allows syncing without having to remove your iPhone from the case. The Lenmar Maven Power Case also feature optimized speaker channel that amplifies the sound. The audio quality of this case is better than most. Like many other cases, this also comes with a headphone extender.

The case has a standard simplistic design and it is very easy to take off the cover, unlike some other cases where some force and pulling is required. The battery capacity is 3,000 mAh which should give you a complete charge for you empty iPhone battery.

It is slightly more expensive than other Apple certified cases but it also offers decent protection and comes with a cool LED battery level indicator.

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UNU DX-6 Battery Cases for iPhone 6/6S

iphone 6s


Price: $46
Cap: 3,000mAh;11.1Wh
Weight: 95g
Color: Black

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The UNU DX-6 has a battery capacity of 3,000mAh but it will still offer over a complete re-charge for an iPhone 6s. It still boasts more charge than most iPhone battery cases. When the case and the iPhone are charging simultaneously from battery level of 0% then the case will initially charge for a few minutes and after that pass-through charging will activate and the iPhone will charge.

The cover offers a decent amount of protection, and it is also very easy to install and disassemble. Moreover, the case also sports a cool LED charge indicator. To prevent the case from accidentally switching on or off while it is in a pocket or purse, the power button must be held for two seconds to toggle.

The case is robust with a rubbery tough plastic for solid protection. The buttons are cutouts, there is also a headphone extension cable available with the case along with a micro USB cable. The only flaw would be that the battery is not as the other cases and the LED display is pretty basic.

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Which case should you buy from the list?

Here is a quick glance at each of the cases which will help you decide which one to select:

  • If you want a battery case with an innovative design, go for Tylt’s Sliding Case.
  • If you are looking for a reliable brand and medium capacity, try Mophie’s cases.
  • If keeping your iPhone as sleek as possible is your top priority buy the iWalk case.
  • If you want strength, style and performance all in one, Phonesuite cases are the best choice.
  • If you are on a budget and need a slim but sturdy case, Anker’ Ultra slim case is a good choice.
  • If you don’t want to attach your phone to a bulky case but are looking for an ergonomic power bank with high battery life, try the Emtec Power Pouch.
  • If you are looking for an affordable case with style and capacity, try the Savfy case.
  • If you want a simple, sturdy case that is certified by Apple, buy the EasyAcc case.
  • If you are searching for an easy to remove and install case with a cool LED display Lenmar Maven case is the right choice.
  • If you are looking for a robust all-rounder with a simple design go for UNU DX-6 case.

Why should you buy a Battery Case?

The iPhone 6s has a battery life of 1715 mAh according to iFixit. While that is a substantial amount of battery. But, the larger screen of the iPhone 6s /6s Plus and all of the background apps and features can drain the iPhone battery within a day depending on how you use it.

In some cases, especially if you are a heavy user, your iPhone 6s may not last even a whole day. It can be tedious charging your iPhone multiple times during the day, especially if you want your device with you at all times.
Then there are also people who don’t have easy access to sockets, so the battery cases help out a lot when it comes to increasing the battery life of your iPhone.

Using a battery case is one of the safest ways to extend you battery life, but it can have some drawbacks. The main one being that attaching your iPhone to a battery case will undoubtedly make it heavier and bulkier.

However, the cases give you an advantage over standard power banks, which is that you don’t need to carry it separately. With most cases you won’t even need to remove the iPhone from the case to charge or sync it.

Also, battery cases aren’t harmful to your iPhone. There is a misconception among people that power banks, and battery cases can harm you iPhone’s battery life but that is not true. It doesn’t matter where the power comes from, charging is always the same and hence, it is safe to use battery cases.

There are many people who worry that charging the battery case and their device simultaneously can damage the iPhone, but the truth is that it doesn’t harm the device at all. Most cases will pass charging current through to the iPhone first, and then charge up the battery case once the iPhone battery is fully charged. A few cases do it the other way, but nonetheless, it will not harm your iPhone.

The only damage that might occur if you are charging you iPhone while it is in the case is heat damage. This is more of a theoretical concern and there are very few possibilities of this happening. This is because the iPhone is designed to handle high temperatures. And most cases of heat damage tend to be isolated incidents due to manufacturing problem.

For those concerned about overcharging, worry not. Overcharging is basically a myth because your iPhone simply can’t overcharge. This is because the charging circuit turns off the charging power when the battery reaches 100%. Of course, a lot of users prefer their iPhone naked and without the bulk of an added case, and if you are one of those users then the Emtec Power Pouch is good for you. It gives you the benefit of a battery case without the bulk when you are using it.

These were our top ten picks of battery cases for the iPhone 6s and 6s Plus. Battery cases are very helpful when it comes to increasing the battery life of your devices. All of these cases that we listed offer a decent battery life and sufficient protection.

That’s not all…

You can also check out our article on Best iPhone 6 Plus and iPhone 6/ iPhone 6S Cases if you are looking to buy a simple case. Hope this article helps you select an appropriate battery case that suits your needs. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Read about our Affiliates Disclosure Policy here. Amazon and the Amazon logo are trademarks of, Inc. or its affiliates.