The #1 Selling Mobile Battery Case Brand in the U.S.*
juice pack
Made for LG G4
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Trusted power and everyday protection
The slim, two-piece frame snaps together to perfectly cradle the curved back of the LG G4 and ensure protection from drops and hard falls, while the quick-charging battery adds over 15 hours of talk time to keep you connected when you need it most.
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Additional hours.
3,450mAh delivers up to 80% extra battery. See additional hours broken down below.
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High-impact protection.
Hard-shell design is made of polycarbonate with a raised bezel around the front edge to protect your screen from scratches.
Learn MoreLevel 2 Protection
Durable polycarbonate material is tested to endure heavy impacts and hard falls so your LG G4 remains secure in just about any situation.
Tech specs
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Battery Capacity
3,450mAh
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Compatibility
LG G4
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Dimensions
3.28 x 6.49 x 0.83 in (83.3 x 164.8 x 21.9 mm)
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Weight
3.56 oz (100.9 g)
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Product Skus
3256
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Warranty
2 Year Warranty
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In the Box
juice pack, micro USB 2.0 cable, headphone adapter
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Manual
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Legal
Frequent Questions
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Will this case work with the leather back LG G4 phone?
This juice pack is NOT compatible with the leather back version. The juice pack for LG G4 is only compatible with the plastic back versions. How does it work?The mophie juice pack has a rechargeable lithium battery inside. When you slide your phone into the case, a connector at the base plugs into the micro-USB port at the bottom of your G4. When your phone gets low on battery power, just flip the standby switch on the back of the juice pack from red to green to start charging your phone. After using up all the power in the juice pack, just recharge it with the included micro USB cable for more on-the-go power. It's as easy as that. How do I charge the mophie juice pack?Simply connect the juice pack to a USB power source, like a wall charger, car charger or your computer, with the included micro-USB cable. You can charge the juice pack while it's on or off your phone. If you charge with the case on, it will also charge your LG! -
How many charge cycles do you get out of the juice pack? Or, in other words, how long will the case last?
The juice pack is rechargeable for over 500 full cycles. A full cycle is when the case is charged from 0% to 100%. Partial cycles, like charging from 25% to 100%, will not count as a full cycle until all of the partials equal 100%. It's only after 500 cycles that the battery in the juice pack will be less than 75% of the original capacity. This is normal for any product with a lithium battery. Will I always receive double the battery life with the juice pack?It is not guaranteed that you will receive double the battery life. The amount of additional battery you will receive from the case depends on a variety of factors that are different for every user. Will the juice pack charge any other Android phones?No. This juice pack is compatible only with the LG G4. You can, however, use one of our portable powerstation batteries to charge virtually any other smartphone!
Answers
Do you have one for LG Stylo 3 plus?
No plans at this time. We have tons of great powerstations that will help keep your LG charged: http://www.mophie.com/shop/universal-batteries
Date published: 2018-02-15
I need a Charger case for a LG K20. Since you don't have one can you recommend a source?? Thanks in Advance
We currently do not offer a juice pack for the LG K20 at this time. We suggest checking out some of our universal powerstations to stay charged at all times. Head to: www.mophie.com/shop/universal-batteries.
Date published: 2018-02-23
Will this mophie work on an LG G6?
No, the juice pack is only compatible with the LG G4. We're working around the clock to develop new products for the most recent phones on the market. The best way to keep up to date on new products and product compatibility is to join our newsletter at mophie.com/newsletter.
Date published: 2017-07-22
Does anyone know if this will fit the LG V10? Thanks!
No, this juice pack is only compatible with the LG G4.
Date published: 2017-06-02
Is this compatible with the LG G4 Plus?
No, we do not currently have a juice pack that is compatible with the LG G4 Plus.
We're working around the clock to develop new products for the most recent phones on the market. The best way to keep up to date on new products and product compatibility is to join our newsletter at mophie.com/newsletter.
Date published: 2017-06-17
Are you going to make a Mophie for the LG K20 plus?
No plans at this time. Be sure to sign up for notifications to stay up to date on the latest mophie products.
Date published: 2017-12-22
Does this fit the new LG G6? If not, does Mophie make a battery pack that does fit the LG G6?
We do not currently have a juice pack that is compatible with the LG G6.
We're working around the clock to develop new products for the most recent phones on the market. The best way to keep up to date on new products and product compatibility is to join our newsletter at mophie.com/newsletter.
Date published: 2017-10-10
Im looking for a juice pack batter case for a lgv10
We do not currently have a juice pack that is compatible with the LG V10.
We're working around the clock to develop new products for the most recent phones on the market. The best way to keep up to date on new products and product compatibility is to join our newsletter at mophie.com/newsletter.
Date published: 2017-08-26
Reviews
juice pack is rated
out of
5 by
6.
Rated 5 out of
5
by
Yardboy12 from
Very Good Product
I bought this for my wife. Her phone battery runs down a lot from games she plays and talking a lot on the phone. The phone battery is weak so the juice pack is perfect for a backup power supply and the case ie great protection.
Date published: 2017-11-08
Rated 5 out of
5
by
sunnybird from
Great product!
I'm using it and I'm happy. the recharge is quite full and it's very fast. It's a exellent quality product. The only thing is that is a little bit heavy.
Date published: 2017-06-01
Rated 5 out of
5
by
Nnnnn from
I love this mophie charging case.
It is a fantastic case. It provides great protection!!
Date published: 2017-05-09
Rated 5 out of
5
by
RobG from
The battery what else
Having the peace of mind to know that my phone will be fully charged for the entire day no matter how often I use it is priceless
Date published: 2017-02-10
Rated 4 out of
5
by
Kckenn from
Im so glad to have it. Its saved my business alre
It's much more well made than I expected and am sure it will last for years,
Date published: 2017-08-17
Rated 4 out of
5
by
Baritone47 from
Good for extended use
I needed the ability to use my phone without recharging for extended periods, and this battery pack does that. I only wish that instructions were clear how to use, they are not clear and I am still not sure when I need to recharge the pack and/or the phone or not.
Date published: 2017-07-09