Best iPhone 11 Pro Max Battery Cases in 2021

best battery cases for iphone 11 pro max

There are many excellent cases you can get for your iPhone 11 Pro Max. But if you’re a heavy user, a battery case is worth considering. Although the phone gives you a commendable power backup, it’s not enough if you’re always multitasking, watching videos, or gaming. While wireless power banks can help avoid interruptions due to depleted batteries, carrying a separate item is often a hassle. To solve the problem and extend your power backup, check out these best battery cases for iPhone 11 Pro Max.

  1. Apple Battery Case
  2. Alpatronix Extended battery Cover
  3. Smiphee Portable Battery Case
  4. Lonlif Extended Battery Case
  5. ZEROLEMON Battery Cover
  6. PELICAN Military Grade Battery Case
  7. QTShine Portable Charging Case
  8. JERSS Extended Battery Case

1. Apple Smart Battery Case: Editor’s Choice

apple smart battery case for iphone 11 pro max

If you can stretch your budget in favor of a top-notch battery case, you must check out this offering from Apple. It can add up to 50% battery life to your phone and displays a smart indicator on your Lock screen and Notification Centre.

Thanks to the support for wireless charging, the Smart Battery Case also lets you charge your device without needing to take off the cover. Featuring durable construction, the premium battery pack is equipped to offer reliable safeguards against overheating too.


  • Secure and efficient charging
  • Supports wireless charging
  • Lightweight


  • Expensive

Price: $129.00

Check out on Amazon

2. Alpatronix Extended Charger Cover: Best Value

alpatronix extended battery cover for iphone 11 pro max

This battery case brings you the best of both worlds with a highly efficient battery at an affordable price. The 5000mAh battery adds up to 100% extra battery life to last you throughout the day. It features a pretty compact form-factor coupled with grippy design.

Plus, the compatibility with the Qi wireless charging means you can charge your iPhone and the case without needing to remove the battery pack. With that said, Alpatronix deserves to be rated as the best iPhone 11 Pro Max battery case under $40. Moreover, you also get a free tempered glass screen protector with it.


  • Adds up to 100% extra battery life
  • Free tempered glass screen protector
  • Compatible with Qi wireless charging


  • At times, the battery could fail to hold the power

Price: $37.95

Check out on Amazon

3. Smiphee Portable Battery Case: Best Power Backup

smiphee iphone 11 pro max portable battery case

This iPhone 11 Pro Max battery case provides 120% extra power, thanks to the built-in  5000 mAh lithium-ion battery. This is equivalent to 15 hours of talk time and 17 hours of internet usage, which makes this one of the most practical options.

Further, it is also a protective case that defends against scratches and daily wear and tear. The raised bezels help you protect the screen to some extent, while advanced chips protect your device from overheating, short-circuits, and overcharging.


  • Reliable power backup
  • Raised bezels for screen protection
  • Safety features
  • 2 color options


  • Susceptible to drops

Price: $32.99

Check out on Amazon

4. Lonlif Extended Battery Pack: Most Portable

lonlif extended battery case for iphone 11 pro max

We love the lightweight and portable design of this battery case. It’s a breeze to install, and you don’t need to worry about it falling apart when you accidentally drop your phone. When charged, it can give you up to 20 hours of video playback and 60 hours of audio!

It’s compatible with any Bluetooth headphones, and the smart LED indicators let you keep track of the amount of juice you have left so that you’re never caught off guard. Further, the soft rubber and raised bezels defend against scratches.


  • Lightweight
  • Soft rubber design
  • LED indicators
  • 2 color options


  • Attracts fingerprints easily

Price: $32.95

Check out on Amazon

5. ZEROLEMON Battery Cover: Most Versatile

zerolemon battery cover for iphone 11 pro max

Enjoy 30 hours of talk time and up to 60 hours of audio playback with this charging case for your iPhone 11 Pro Max. This brand created the world’s first Tri-Cell battery design, so you know you’re investing in quality at a reasonable price!

As the name suggests, it is slim and easy to handle. Moreover, the full-edge protection safeguards your iPhone against bumps and scratches. It makes it easy to carry on your life with superior stability and extra battery life. Lastly, it’s even compatible with CarPlay.


  • CarPlay compatible
  • Slim design
  • Reliable backup


  • No auto-shut-off feature to protect against overcharging

Price: $24.99

Check out on Amazon

6. PELICAN Military Grade Case with EMS Battery Pack: Best Protection

pelican military grade case for iphone 11 pro max

Here’s a military-grade rugged case that doubles up as a power pack. It has a detachable magnetic that offers up to 38-51% of additional power. And an extra USB port allows the charging of other non-wireless charging devices.

The case has been tested to survive drops up to 3 meters or 10 feet. Further, the raised lip protects your screen from drops and surface scratches. Qi-certified charging: provides secure and consistent hands-free wireless charging whenever connected to the mount.


  1. Military-grade protection
  2. Unique detachable design
  3. Additional USB port


  • Not much power backup
  • A bit expensive

Price: $61.05

Check out on Amazon

7. QTShine Portable Charging Case: Best Price

qtshine portable charging case for iphone 11 pro max

Equipped with a powerful 7800mAh lithium polymer battery chip, this case promises to more than double your iPhone’s battery life. There are four LED indicators at the back to check the level of charge at any time.

It also has a good build quality with a hard protective bumper design that can handle minor shocks and bumps. The high-quality polymer batteries and safe circuit diagram design prevent any heating or overcharging issues.


  • Sleek look
  • LED indicators
  • Safety features


  • A bit slippery

Price: $22.95

Check out on Amazon

8. JERSS Extended Battery Case: Most Practical

jerss extended battery case for iphone 11 pro max

This 6500mAh battery case can supply enough power to fully and safely charge your phone for extended usage. It’s a convenient way to enjoy more talk time, video playback, or hours of gaming.

Besides, you can use wired headphones when charging. This makes it a practical everyday companion.  The soft edge at the top makes installation easier so that you can conveniently slide your phone in. It’s replete with indicator lights at the back.


  • Easy to install
  • LED indicators
  • Wired headphone supported


  • Does not work with CarPlay

Price: $26.90

Check out on Amazon

Summing Up

So, which iPhone 11 Pro Max battery case are you going for? Share your selection with us in the comments below.

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