The #1 Selling Mobile Battery Case Brand in the U.S.*

$99.95 In stock
$99.95$29.95
Charge Force

juice pack

Made for Galaxy S8+
Charge Force

juice pack

Made for Galaxy S8+
Enjoy extra battery life for the Samsung Galaxy S8+. The juice pack battery case extends your talk time to over 39 total hours* and maintains the ability to recharge your phone and battery case anywhere wireless charging systems are available.
What is charge force?

Add Accessories Save when bundled with this product

  • charge force powerstation (Black)
    Add charge force powerstation $99.95+$59.95
    Wirelessly charge without any cables whatsoever using the charge force powerstation. Simply place your juice pack wireless or any Qi enabled smartphone on top of the charge force powerstation and charging will begin on contact. This 10,000mAh battery will give your smartphone up to 48 hours* of extra battery and the extra USB port will charge a second device at the same time; including power-hungry tablets.
  • charge force wireless charging base (Black)
    Add charge force wireless base $39.95+$19.95
    Simply touch your mophie case with charge force wireless power to the base; internal magnets will align it for a perfect charge every time. Never fuss with cables again.
  • PRO switch-tip cable | USB-C to USB-C & micro-USB - 2m
    Add PRO switch-tip cable | USB-C to USB-C & micro-USB - 2m $29.95+$17.95
    High-performance, heavy-duty PRO switch-tip cable with USB-C & micro USB connectors. Designed to charge laptop computers and smartphones with USB-C ports as well as other smartphones, tablets and a variety of micro USB devices.
  • PRO switch-tip cable | USB-A to USB-C & micro-USB - 2m
    Add PRO switch-tip cable | USB-A to USB-C & micro-USB - 2m $29.95+$17.95
    High-performance, heavy-duty PRO switch-tip cable with USB-C & micro USB connectors to charge a laptop and charge and sync your smartphone or other devices.
wireless charging battery case Samsung Galaxy S8+

3,300mAh built-in battery

The rechargeable battery case provides more than 39 total hours of battery with the push of a button, while Charge Vault technology enables our industry-leading, juice pack batteries to hold their charge for an extended period of time so they are always ready right when you need it.

Universal wireless charging

Compatible with Qi and other wireless systems, this juice pack battery case works with virtually any wireless charging pad, including those found at airports, cafes, cars, or anywhere else that has wireless charging available. Never fuss with cables again.

Secure magnetic positioning

This juice pack case includes Charge Force technology with built-in magnets to enhance your wireless charging experience at home, the office, in the car, and on-the-go. The case magnetically aligns with mophie charge force mounts to hold your phone in place as charging begins on contact.

wireless charging battery case Samsung Galaxy S8+

Reliable high-density battery

mophie products are built to last. Our batteries contain first-class lithium-ion polymer cells that are examined and tested to deliver the most efficient charge, while integrated, fail-safe circuitry prevents over-charging and controls temperature to prevent overheating.

Priority+ fast charging

Connect the phone’s charger and USB-C cable to the juice pack case to charge your Samsung smartphone at the fastest speeds possible. mophie Priority+ charging allows pass-through charge & sync while connected to a computer. Your Galaxy S8+ recharges first, and then the juice pack battery recharges itself.

Low-profile design

High-impact protection built into the case’s design includes raised corners that provide edge-to-edge screen protection and internal bumpers that add extra cushion to the edges and corners of the hard shell for unrivaled protection against drops and hard falls.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Tech specs

  • Battery Capacity

    3,300mAh

  • Compatibility

    Galaxy S8+

  • Dimensions

    3.11 x 6.72 x 0.74 in (79.07 x 170.73 x 18.8 mm)

  • Weight

    4.1oz (116.2g)

  • Product Skus

    3994

  • Warranty

    2 Year Warranty

  • In the Box

    juice pack case, Quick-start guide

  • Manual

    Download here

  • Legal

    View here

Frequent Questions

  • How do I wirelessly charge my juice pack case?
    Simply place the juice pack case on any Qi-compatible charger. (mophie charge force products will automatically align the juice pack case for a proper charge.) Wireless charging will automatically begin when the case is aligned on the charger. If your phone is inside of the case, the juice pack case and phone will charge together.
    What wireless chargers will my juice pack case work with?
    The mophie juice pack case is compatible with all mophie charge force products. It will also wirelessly charge from any Qi-compatible wireless charger, and is compatible with other wireless charging technologies, such as those used at coffee houses, on airline flights, in furniture products with wireless charging, and in consumer vehicles that support wireless charging.
    Is the juice pack case’s wireless charging compatible with Samsung’s Fast Charge Wireless Charging Pad?
    Although the juice pack case will wirelessly charge from a Samsung Fast Charge Wireless Charging Pad, it will charge at standard wireless charging speeds, not at 1.4x Fast Charging speeds.
    How does the extra battery work?
    When you slide your phone into the juice pack case, a connector at the base of the case plugs into the port at the bottom of the phone. Press the status button on the back of the case for 3 seconds to start charging your phone. After using up all the power in the juice pack case, just recharge it for more on-the-go power. If you want to stop charging the phone, press the status button again for 3 seconds.
    What is the best method for charging my phone using the juice pack case?
    If your phone and juice pack case are both fully charged, we recommend waiting until your phone has 20% battery left. When the phone’s in the red, press the juice pack case’s status button for 3 seconds and let the case to do the heavy lifting. The phone requires more power to charge past 80%, so if you want to get the greatest battery boost from the juice pack case, we suggest putting it back into standby mode until your phone battery is low again. This isn’t the end-all-be-all, but we like it.
    How do I charge my juice pack case when I’m on the go?
    After using up all the power in the juice pack case, connect it to a power source using the cable included with your phone. You can plug the cable into the wall adapter included with your phone or any power source with a USB out. You do not need to remove your phone from the juice pack case to charge. In fact, leaving your phone in the juice pack case while charging will charge both your phone and the case together.
  • Will Samsung Adaptive Fast Charging work on my phone when I’m charging the phone and juice pack case together from the Samsung Adaptive Fast Charging wall charger?
    Yep. Your phone will Fast Charge from the Samsung Adaptive Fast Charging wall charger while it’s inside the juice pack case.
    Why aren’t the LEDs blinking while my juice pack case is charging?
    After you begin charging the juice pack case, the LED status indicators will start blinking to indicate charging. The lights will turn off after 30 seconds allowing for a good night’s rest. Remember to check the status indicator before you take your juice pack case. When all four LEDs are lit, your juice pack case is fully charged.
    How many charge cycles can I get out of my juice pack case? Or, in other words, how long will the juice pack case last?
    You can recharge your juice pack case for over 500 full cycles. A full cycle is when you recharge the case from 0% to 100%. Partial cycles, like charging from 25% to 100%, will not count as a full cycle until all the partials equal 100%.

    After 500 full cycles, the battery in the juice pack case may provide less than 75% of its original capacity. This is normal for any product with a lithium polymer battery.
    Does the juice pack case block the speaker, microphone, camera, or any other ports?
    Of course not. In fact, the juice pack case is designed to act as a virtual speaker box! Sound is redirected from the bottom of the phone to the front, resulting in a richer, fuller sound quality.
    Does the juice pack case interfere with my phone’s antenna reception?
    All Wi-Fi and LTE functions on the Galaxy S8 and Galaxy S8 Plus are unaffected by the juice pack case. However, the juice pack case may interfere with NFC performance.


Answers

Why is the juice pack so slick? It will definitely fall out of anyone's hand. Why didn't you add ANY grip to the juice pack? Where is an app to monitor the juice pack FROM the S8+ while it is running?

Asked by: sanjsrik
Thanks for reaching out! The juice pack for the Galaxy S8+ is made with our standard black matte material. There is no app to monitor the amount of charge on your juice pack. To check the status of your juice pack simply push the status button located on the back of your juice pack. The status LEDs will indicate its charge level. Four LEDs means that the juice pack is fully charged, while one LED means the juice pack is almost dead. If you would like a visual of what is being described please visit http://www.mophie.com/shop/galaxy-s8/juice-pack-galaxy-s8-plus?a92=12 and download our user manual located under Tech specs.
Answered by: Victoria O
Date published: 2017-06-13

How much drop protection does this provide when I'm switching to this from the Otterbox Defender that's on it now?

Asked by: AudiophileNut
The juice pack for the Galaxy S8 Plus has high-impact protection built into the case’s design that includes raised corners to provide edge-to-edge screen protection and internal bumpers that add extra cushion to the edges and corners of the hard shell for unrivaled protection against drops and hard falls.
Answered by: Victoria O
Date published: 2017-06-14

Is there going to be a case released for the Galaxy Note 8? I know a lot of people that are holding off on other cases to get one

Asked by: micahnewman7
We're already hard at work! Sign up to get notified about the Galaxy Note8 at: www.mophie.com/innovation.
Answered by: Anne T
Date published: 2017-11-02

Can I use Android Pay/Samsung Pay using while this case is in use?

Asked by: soulframe
All Wi-Fi and LTE functions on the Galaxy S8 Plus are unaffected by the juice pack case. However, the juice pack case may interfere with NFC performance.
Answered by: Victoria O
Date published: 2017-08-09

Top part has cracked how to get a replacement bottom battery part is fine

Asked by: Cooler60
Oh no! We're sorry to hear that! We'd be happy to assist you with a replacement under warranty. Please give us a call at 888-866-7443.
Answered by: Anne T
Date published: 2018-02-23

What would happen if I plug my Samsung charger cable thru the case charging port and I put my phone on the Mophie charging pad will it charge the devices faster?

Asked by: Jesusg
No it, will not charge the phone any faster. It will only pull power from one source at a time.
Answered by: Anne T
Date published: 2017-09-11

I just got this case and am having trouble charging it wirelessly. I'm using a Samsung Qi wireless Fast Charger and the phone charges, but not the case. Do I have to charge the case with a USB cable or should wireless be working?

Asked by: techiefive
The juice pack is compatible with most Qi wireless chargers. Please reach out to our Technical Support team at 888-866-7443, as they can best advise on what the issue may be.
Answered by: Anne T
Date published: 2018-07-16

Hello, Will you be getting more stock? and if so, when would this likely be? I'm asking with regards to one for the galaxy s8+ Thank you

Asked by: Curious1one
We currently do not have any information on that at this time. We suggest checking out our retail partners in your area. Head to http://www.mophie.com/retail-partners to see if this product is available in your area.
Answered by: Anne T
Date published: 2019-02-27

My case recently stopped working, it will charge the CASE first which is already wrong, then it won't even charge my phone afterwords. Is there a way to reset it. Help!

Asked by: Jakejc121803
Oh no! We're sorry to hear that Jake. Please contact our Technical Support team at 888-866-7443 as they can best advise on what this issue may be.
Answered by: Anne T
Date published: 2017-11-09

When charging the phone with the case will the phone quick charge? This is not when connected to the wall, this is just the case charging the phone.

Asked by: Drcaveman
No, the juice pack does not support quick charge.
Answered by: Victoria O
Date published: 2017-08-14

Can you take on an airplane

Asked by: Nancy18
You sure can!
Answered by: Anne T
Date published: 2018-05-21

Can you apply and use a magnetic vent clip or dash clip with the mophie case without ruining it?

Asked by: Corrie
We do not recommend using the juice pack for the Galaxy S8+ with 3rd-party magnetic mounting systems. The magnets in the case will firmly attach it to mophie charge force mounts, but we cannot guarantee that they will adequately hold when used with a 3rd-party magnetic system. Check out our charge force mounts here, http://www.mophie.com/shop/docks
Answered by: Victoria O
Date published: 2017-06-19

Do you send to mexico?

Asked by: Mario A
Thanks for reaching out! Here is a list of all of our retailers: http://www.mophie.com/retail-partners You can also search by region down at the bottom of the page. We hope that helps, and thanks for your interest in mophie.
Answered by: Anne T
Date published: 2017-09-19

no matter what charge cord or charger I use even wireless doesn't work with this case all it says is weak charge detected or it starts charging then stop repeating the process over and over and never charges

Asked by: sscott
We're sorry to hear that, Scott. Please give us a call at 888-866-7443 so that we can discuss a solution with you.
Answered by: Anne T
Date published: 2018-01-15

How long does the case take to charge (s8+ case)

Asked by: Jesusg
The juice pack itself will take 3-4 hours to fully charge.
Answered by: Anne T
Date published: 2017-09-16

People in here are saying that they bought the case, but why does it show to me "product coming soon" ?

Asked by: Byron
The juice pack for the Galaxy S8+ is currently unavailable on our EU site. Keep checking back with us for updates!
Answered by: Victoria O
Date published: 2017-08-02

When will this be available?

Asked by: yellowjacket
No news yet! Keep checking back with us and sign up for our newsletter to stay up to date on new products and releases, www.mophie.com/newsletter
Answered by: Victoria O
Date published: 2017-06-15

When you guys are going to have the Note 8 case available for purchase?...thank you!

Asked by: rik2
We haven't announced anything for the Note 8 just yet, but stay tuned and join www.mophie.com/innovation.
Answered by: Anne T
Date published: 2017-11-02

Who has tried using Samsung pay with thier Mophie case? I bought a batterie case on Amazon that is about the same thickness as the mophie and it did work both places i used the NFC Scanning. I want a Mophie for the wireless charging and 2 year warranty

Asked by: Kjr52
The juice pack will not impede LTE or WiFi signals, but due to the need for NFC to be used in very close proximity, your ability to use NFC will vary on the application it is used for, and the strength of both the signal from your phone, and the signal from the other device. As we do not test the case for functionality with NFC, we cannot guarantee that this will work in all instances.
Answered by: Victoria O
Date published: 2017-07-24

What is the thickness of the mope with the device inside?

Asked by: ZeroOveride
The juice pack for the Galaxy S8 plus is 3.11 x 6.72 x 0.74 in (79.07 x 170.73 x 18.8 mm).
Answered by: Victoria O
Date published: 2017-05-31

Have you considered putting some intelligence in the case and an app to manage the charging state? After buying an iPhone and Apple battery case for my wife where you manage the power source from the phone, managing the charging manually seems antiquated.

Asked by: ggiesen
Thanks for the suggestion. We'll be sure to pass this along to our team!
Answered by: Anne T
Date published: 2017-10-23

I have the juice pack case for my s8+, I have had it since September of 2017 and now it wont hold a charge or charge fully, how can I get a warranty replacement?

Asked by: Natesrh9193
Hey Nate! We're sorry to hear that. We'd be happy to assist you. Please contact our Customer Support team at 888-866-7443 to see if your device is eligible for a replacement under warranty.
Answered by: Anne T
Date published: 2018-03-20

Can the case charge the phone wirelessly? My phone's USBC connection no longer works so it can only charge wirelessly.

Asked by: Jossylabe
It sure can!
Answered by: Anne T
Date published: 2018-01-06

I've read several reviews that state that the Juice Pack for the Galaxy S8+ doesn't come with the headphone adapter. All the other Mophie cases I've bought in the past do come with this adapter. Why the change?

Asked by: rynkra
As the headphones that come with the Galaxy S8+ are compatible with our juice pack no headphone adapter is needed.
Answered by: Victoria O
Date published: 2017-07-19

I got my juice pack for my S8+ and was so excited only to discover there is no power button for the phone. I have the Bixby and volume buttons but no power button. It is just a cut out and my finger can't even reach it. Is this normal? Thanks

Asked by: Kritzie
No, there should be a pass-through button on the juice pack. Please reach out to our technical support team at www.mophiewarranty.com to get a warranty replacement.
Answered by: Victoria O
Date published: 2017-06-13

Is an otg adapter not supposed to work? Mine doesn't work on my case if so.

Asked by: Ronald6971
Use the USB-C cable supplied with your Galaxy S8 or Galaxy S8+ phone to charge your juice pack case by connecting it to the USB-C wall adapter included with your phone, or a USB-C car charger. This will allow the case and phone to charge at the fastest speeds available from the adapter or charger. If you feel your juice pack is not working as it should, Please contact our Technical Support team at 888-866-7443, as they can best advise on a solution.
Answered by: Anne T
Date published: 2018-10-31

Hi there, Want to buy Juice pack for S8 plus in Australia and no one seems to carry it other than eBay and some onther unofficial retailer's. If I buy from them, does they carry factory warranty? If not, do you ship to Australia?

Asked by: Manu
We suggest checking out our Global Retail Partners at: http://www.mophie.com/retail-partners. You can also scroll to the bottom and search your region. We hope this helps, and thank you for your interest in mophie.
Answered by: Anne T
Date published: 2017-11-20

Does the mophie interfere with the file transfer and camera download feature when charging or connected to you computer

Asked by: cabowabojim
No, the juice pack for the Galaxy S8+ does support syncing.
Answered by: Victoria O
Date published: 2017-06-13

I'm looking for a battery case with a flip cover for my Samsung 8 plus

Asked by: Caballero
At this time, we do not offer a flip cover for the Samsung S8+
Answered by: Anne T
Date published: 2018-09-04

How is the lay on table design of the case? Is the juice packs lip big enough to protect my S8+ from a face down drop? Also can I still use Samsung Pay with this case?

Asked by: Boost
The juice pack for the Galaxy S8+ has a low-profile design with high-impact protection built into the case’s design which includes raised corners that provide edge-to-edge screen protection and internal bumpers that add extra cushion to the edges and corners of the hard shell for unrivaled protection against drops and hard falls. The juice pack will not impede LTE or WiFi signals, but due to the need for NFC to be used in very close proximity, your ability to use NFC will vary on the application it is used for, and the strength of both the signal from your phone, and the signal from the other device. As we do not test the case for functionality with NFC, we cannot guarantee that this will work in all instances.
Answered by: Victoria O
Date published: 2017-11-17
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Reviews

juice pack is rated 3.9 out of 5 by 95.
Rated 5 out of 5 by from Great Product I would recommend this product to anyone I know. Has help me a lot in times I needed to charge my phone.
Date published: 2019-03-03
Rated 5 out of 5 by from Love my mophie! It did crack on the bottom but love it anyways! So much better than carrying around a charging cord.
Date published: 2019-01-29
Rated 5 out of 5 by from great design protects my galaxy S8+ this is my second phone with a Juice Pack and this product is awesome. Great overall protection and extra power when needed. I am not connected to a wall when the first battery runs out. just turn it on and keep going
Date published: 2019-01-28
Rated 5 out of 5 by from Happy customer This is my second Mophie. I kept dropping the first one and after a year or so it gave in. The battery is great when you wear out your phone on long trips or just spend all day on YouTube. I would recommend this product.
Date published: 2019-01-27
Rated 5 out of 5 by from I love my mophie! Replacement Mophie, but I am very happy with their warranty and replacement policy!
Date published: 2019-01-21
Rated 5 out of 5 by from Samsung Galaxy I replace this item for the first one i had. mophie really backs up their merchandise
Date published: 2019-01-14
Rated 5 out of 5 by from great product my phone s battery run s low half way thru the day hit the button and it charges back to 100% great product a must have
Date published: 2019-01-13
Rated 5 out of 5 by from Protects and extremely usefull It's like having 200% on your phone and the replacement service is amazing on its own
Date published: 2019-01-09
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