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Galaxy S5 Battery Case - UNU Unity 2800mAh Portable Charger Rechargeable External Protective Battery Pack Power Juice Bank Cases for Samsung Galaxy S5 - Black / Black

3.7 out of 5 stars 818 customer reviews
| 105 answered questions

Price: $39.95 & FREE Shipping on orders over $49. Details

This item at this price, sold by Amazon.com, is currently reserved exclusively for Prime members.

Prime free trial and invitee customers: We will automatically apply an Amazon.com Gift Card to your Gift Card Balance in the amount equal to the Prime exclusive discount after you become a paid Prime member. If you cancel your paid Prime membership or return the qualifying smartphone within the first 3 months of your paid Prime membership, we may void your Gift Card or charge you in the amount of the Gift Card. Terms and Conditions apply.
In Stock.
Sold by unicshop and Fulfilled by Amazon. Gift-wrap available.
Samsung Galaxy S5
Black/Black
Standard Packaging
  • Ultra-slim style rechargeable 2800mAh battery case provides your Samsung Galaxy S5 an additional 100% power which is equal to 10 hours of talk-time
  • This Samsung Galaxy S5 case portable charger is fully-customizable design of with 360° of protection for your offering premium protection from scratches, fingerprints, smudges and bumps
  • Offered in several vibrant colors, including magenta, blue, silver, and black
  • Integrated battery capacity detection. Detect Unity's power levels directly on your phones screen
  • Special Note: Samsung Galaxy S5 is not water resistant when equipped with UNITY
2 new from $39.95
$39.95 & FREE Shipping on orders over $49. Details In Stock. Sold by unicshop and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

  • Galaxy S5 Battery Case - UNU Unity 2800mAh Portable Charger Rechargeable External Protective Battery Pack Power Juice Bank Cases for Samsung Galaxy S5 - Black / Black
  • +
  • Samsung 2800mAh OEM Battery for Galaxy S5, Black/Silver (Discontinued by Manufacturer)
  • +
  • Samsung Micro-USB 3.0 Data Cable for Galaxy S5 and Note 3 N9000 - Non-Retail Packaging - White
Total price: $54.43
Buy the selected items together

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Size: Samsung Galaxy S5 | Color: Black/Black | Product Packaging: Standard Packaging

Product Features

Size: Samsung Galaxy S5 | Color: Black/Black | Product Packaging: Standard Packaging
  • Size (LWH): 0.75 inches, 3.25 inches, 5.75 inches
  • Weight: 2.72 ounces
  • Minimum Rated Talk Time: 10 hours
  • Minimum Rated Standby Time: 270 hours
  See more technical details

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This item: Galaxy S5 Battery Case - UNU Unity 2800mAh Portable Charger Rechargeable External Protective Battery Pack Power Juice Bank Cases for Samsung Galaxy S5 - Black / Black
Customer Rating 3 out of 5 stars (818) 3 out of 5 stars (59) 4 out of 5 stars (44) 3 out of 5 stars (34)
Price $39.95 $17.99 $21.95 $19.99
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By unicshop King Mansion Techorbits Tell Industries LLC
Compatible Phone Models galaxy s5 battery Samsung Galaxy S 5 samsung-galaxy-s-5 Samsung Galaxy S5
Color Black/Black Black White Black Galaxy S5
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Product Description

Size: Samsung Galaxy S5 | Color: Black/Black | Product Packaging: Standard Packaging

UNU Unity Samsung Galaxy S5 Battery Case is bounded with the newly UNU Rapid Battery Charging Technology. Designed to be more than just a battery case, this new UNU battery case is featuring unbridled power wrapped within a refined frame, which brings power and protection to a new level. Your satisfaction is our top priority as we aim to develop long term partnerships with our customers.
Ultra Slim Fit Double Your Battery Life
The ergonomic yet slim style 2800mAh battery case provides your Samsung Galaxy S5 the true 100% battery boost, equal to an additional 10 hours of talk time.
Uncompromised Protection
Fully-customizable design with 360 degrees protection offers your premium protection from scratches, fingerprints, smudging and bumps.
Smart Case for Full Accessibility
The intelligent and novel design provides a viable benefit to you, such easy access to all functions, camera, and headphone jack.
On to Go Power your Life
UNU Intelligent Rapid Charge High Capacity Li-ion Battery Technology with Certified High Performance Reliability.
Top Quality Guaranteed
UNU strict quality control ensures top quality, stylish, and safety for our customers.

Product Information

Size:Samsung Galaxy S5  |  Color:Black/Black  |  Product Packaging:Standard Packaging
Product Dimensions 0.8 x 3.2 x 5.8 inches
Item Weight 2.7 ounces
Shipping Weight 4 ounces (View shipping rates and policies)
ASIN B00J2H6PX8
Item model number UNU-UTB-S5-2800B-BLK
Batteries 2 Lithium ion batteries required. (included)
Customer Reviews
3.7 out of 5 stars 818 customer reviews

3.7 out of 5 stars
Best Sellers Rank #31,982 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories)
#308 in Cell Phones & Accessories > Cell Phone Accessories > Batteries & Battery Packs > Charger Cases
#13,959 in Cell Phones & Accessories > Cases

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Customer Reviews

Top Customer Reviews

Size: Samsung Galaxy S5Package Type: Standard PackagingColor: Black/Black Verified Purchase
I rarely write reviews, but this one deserves it. I was hesitant to buy this case and extended battery due to some unfavorable reviews but I rolled the dice and I am 100% satisfied. I will keep it simple:
1) the case fits like a glove and installs in seconds. It does use the original battery in addition to an included second battery. You will not use the original back cover. The case is a rubberized hard plastic. It is very smooth with a slight rubber feel. I like this 10 times better than the otter box style cases with soft rubber bumpers because I carry my phone in my pocket and those cases get caught going in an out, not this one though as it is smooth enough to slide in and out.
2) I haven't done extensive battery tests, but the battery does double the life. If you are like me, the oem battery just drains too fast. Only time will tell if it holds up.
3) The case and battery adds much less weight and bulk than expected. Pleasantly surprised!

*One reviewer mentioned that it was difficult to open the cover for the charging port due to the deep recess. That is true. If you are like me and have big man fingers and short nails, it may take a few tries to hook the cover and get it open, but it isn't impossible.

Overall, I am very satisfied. I would buy this again and encourage others to do so without question.

***Update: 7/22/15
I still love this case and battery. They have held up well. After using them for a year, I have seen no decline in battery life.
A few observations:
-The case is a very tight fit. After a year, the battery is applying pressure making my screen protrude in the center, almost past the lip of the case. As a result, I am getting another case and battery.
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Size: Samsung Galaxy S5Package Type: Standard PackagingColor: White/Blue
Disclosure: I received this product for free as a Beta tester/panelist, just as a lot of these reviewers did. However unlike a lot of the reviewers here, I do not believe that automatically entitles it to a 5-star review. The whole point of Beta testing/paneling something is to give honest feedback so the company can improve the product, and also so that potential customers of the current product can see your real life experience.. You are not supposed to treat the free product from the company as quid pro quo for a 5 star butt kissing.

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For the most part, it's not a bad case. The "battery doubler" piggyback system that UNU has developed is actually pretty clever. It allows the new battery to charge and discharge simultaneously with your stock battery. This avoids issues that you have with many battery "backpack" cases, which require tying up the USB port, manually charging separately, and involve conversion losses. All you do is plug your charger into the phone and it charges both batteries. Once charged, the phone sips power from both batteries as if they were a single 5600mAh battery.

The extra capacity was roughly as promised. I normally got about a day out of the original battery, now I get about two. And as expected, it does take roughly twice as long to fully recharge.

Since it makes use of your stock battery, and the stock battery is installed on top, this allows the NFC antenna to work properly. I had no problem using Tap n Pay at any store I tested it at.

The case itself is only as thick as it needs to be, but it is by no means "slim".
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Size: Samsung Galaxy S5Package Type: Standard PackagingColor: Black/Black Verified Purchase
Length: 3:48 Mins
UNU Unity Samsung Galaxy S5 Battery Case - Rechargeable External Protective Battery Case [Black/Black] for Samsung Galaxy S5 Compatibles with All Models Samsung Galaxy S5 [A.K.A Extended Power Bank Battery Pack Charger Case Cable]

I would recommend this case for any traveling businessperson or an individual who needs some more juice in for their phone. I purchased it because I am always traveling and I absolutely despise having to stand next to an airport charging station when waiting for my flight. After using this case for two weeks, I really liked it and I want to share my experience with everyone here with a video I made.

The case features stackable battery design that offers a 100% increase to the S5's original battery. UNU has developed an insertable chassis that fits into the back of the S5's stock battery to double the life of the phone. The 2800mAh battery has over 500 charging cycles with the ability to be fully charged in 3-4 hours. This case provides 30% more than other brands I had tried so far with comparable sizes. With their battery stack method, this case only adds a few mm to the thickness and a bit weight, which doesn't affect the feel when you are holding the phone.
5 Comments 88 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Size: Samsung Galaxy S5Package Type: Standard PackagingColor: Black/Black
The idea of battery case is not a new concept. A few years back, it used to be popular in a form of external battery attachment molded into a bulky case with hardly any protection. Then, this idea was improved by using custom shaped batteries (double or triple capacity) sticking out of the original smartphone battery pocket, and using a custom plastic or TPU shell as a battery cover for a basic protection. Unfortunately, both of these approaches affected the thickness of the phone (by more than doubling it), phone protection was reduced, and often NFC support built into OEM battery was not available. UNU decided to improve this concept with a very clever solution. Here is what I found.

Arrived in a very simple package, the front is an open display under the cover revealing a slick look of what appears to be a typical smartphone case. You wouldn't even think for a second it was a battery case until you flip it over to see a description of UNU Unity Series with a detailed list of features, pictures of assembly, and benefits of additional hours by doubling the battery capacity. Yes, that's exactly what this battery case does - it doubles the capacity of stock 2800 mAh battery and provides a pretty decent protection by surrounding your Galaxy S5 in ultra-slim soft touch case.

Let me first start with a battery itself. As a standalone piece, there is a custom chassis with UNU's own 2800 mAh battery which goes into battery compartment of S5 instead of your OEM battery. It has an identical footprint and thickness comparable to OEM S5 battery with an addition of chassis on the top where you place your original S5 battery.
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