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UNU Power DX External Protective Battery Case for iPhone 4s/4 - Retail Packaging - Gold

3.6 out of 5 stars 1,786 customer reviews
| 104 answered questions

Price: $19.99 & FREE Shipping on orders over $49. Details

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In Stock.
Sold by ZvoltzDirect and Fulfilled by Amazon. Gift-wrap available.
Gold
Standard Packaging
  • Charge and sync your iPhone 4 without having to remove it from the case
  • Integrated LED power gauge for accurate display of remaining power
  • Attractive Glossy White casing!
  • 100% battery life to your iPhone 4 battery capacity or 85% to your iPhone 4S
4 new 1 used from $19.67
$19.99 & FREE Shipping on orders over $49. Details In Stock. Sold by ZvoltzDirect and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

  • UNU Power DX External Protective Battery Case for iPhone 4s/4 - Retail Packaging - Gold
  • +
  • iPhone 4 / 4S Anti-Glare, Anti-Scratch, Anti-Fingerprint - Matte Finishing Screen Protector
Total price: $20.99
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Product Features

Color: Gold | Product Packaging: Standard Packaging
  • Size (LWH): 0.75 inches, 2.5 inches, 5 inches
  • Weight: 2.56 ounces
  • Minimum Rated Talk Time: 10 hours
  • Minimum Rated Standby Time: 210 hours
  See more technical details

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This item: UNU Power DX External Protective Battery Case for iPhone 4s/4 - Retail Packaging - Gold
Customer Rating 3 out of 5 stars (1786) 3 out of 5 stars (1695) 3 out of 5 stars (256) 4 out of 5 stars (219)
Price $19.99 $18.92 $15.99 $5.98
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By ZvoltzDirect Zeltog BREED promissingseller2012
Compatible Phone Models iphone 4 charger case iphone 4;iphone 4s iPhone 4/4s Apple iPhone 4
Color Gold Black black black
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Product Description

Color: Gold | Product Packaging: Standard Packaging

Apple 'Made for iPhone' certified product - White case Charge and sync your iPhone 4 without having to remove it from the case Integrated LED power gauge for accurate display of remaining power Attractive Glossy White casing! 100% battery life to your iPhone 4 battery capacity or 85% to your iPhone 4SHere's the answer to keeping your new iPhone 4 or 4S safe from bumps, bruises and scrapes AND adding an additional 100% battery life to your iPhone 4 or 85% battery life to your iPhone 4S. Who's not going to dig that? It typically means and additional 8-10 hours of talk time and near 8 hours of web browsing on 3G (14 Wi-Fi) and it promotes twice the recharge speed as would be the case with a standard USB connection. All in a tough, durable protective shell. Keep all your iPhone4 goodness going strong when you're away from home for extended periods.

Product Information

Color:Gold  |  Product Packaging:Standard Packaging
Product Dimensions 0.8 x 2.5 x 5 inches
Item Weight 2.6 ounces
Shipping Weight 3.2 ounces (View shipping rates and policies)
ASIN B00JS7UFH4
Item model number UNU-DX-04-1700G
Batteries 2 Lithium ion batteries required. (included)
Customer Reviews
3.6 out of 5 stars 1,786 customer reviews

3.6 out of 5 stars
Best Sellers Rank #54,313 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories)
#21,108 in Cell Phones & Accessories > Cases > Cases

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Customer Reviews

Top Customer Reviews

Package Type: Standard PackagingColor: White Verified Purchase
Length: 7:14 Mins
I don't normally write too many reviews but I had to write something about the Unu DX-1700. I've spent a great deal of time doing cross comparisons of different battery cases on the market before I settled on the Unu. There is relatively very little information on the web about the unit so I figured I'd help out buyers like me who like to research the item before they commit to buying. So here goes:

The Good:
1. The Unu is attractively priced. Many other battery cases range anywhere from $60 - $80 which is way out of my price range for this type of product.
2. The Unu looks good. I've got a white iPhone 4 (Verizon) and a majority of the battery cases out there are black. Also, the Unu has a nice, glossy finish which compliments the iPhone.
3. It works. I can go an entire day (13 hours) without recharging my phone, and that includes web surfing, sending/reading emails, and of course playing games.

The Bad:
1. The Unu does add some considerable bulk to your slim iPhone. Both in thickness and in height.
2. The Unu adds extra weight (mainly from the battery) so throwing it in your pockets may be uncomfortable.

Bottomline:
It's a quality battery case that works well, compatible and reliable, and is relatively inexpensive. There are negatives, but they're all superficial. If you're a person who is always on the go and you don't always have time to charge your phone then this case is for you. I've had my Unu for nearly 4 months, and it has saved me on many occasions, particularly last week when heavy winds knocked down all the electrical lines and our neighborhood had no electricity for 3 days. Outstanding product - gets 8 out of 10 stars from me.
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Package Type: Standard PackagingColor: Black Verified Purchase
I was delighted to discover these little gems were still offered by Amazon, and at a slightly reduced price from the first one I purchased a year ago.

Back then, when the iPhone 4 was first released, there weren't many "power case" options available. I found this one, freshly listed by an unknown-to-me seemingly Chinese company and I hesitated. Long enough for someone else to leave a review. (Thanks Crispin38!) After all, I frequently haunt the "wholesale direct" websites and the quality often leaves much to be desired.

When that first review arrived and it was positive, that was good enough for me to take a chance and keep my fingers crossed, and am I ever glad I did.

Mechanically, the case fits rock solid. No gaps or sloppy contact points along the seams, and the snap-together closure seats firmly into place. The end result is a trim, slightly thicker than before phone which fits confidently in my grip, with no slippery or "too thin" sensation. Turned to landscape mode for two-thumbs typing, the size is just right for my large hands to reach any key present.

Electronically, the case delivers pretty much as promised, so long as you explicitly follow the manufacturer's admittedly sparse instructions. Unu presents this case as a "recharger," rather than an ongoing power supply, meaning that they recommend turning the device on only after the phones internal battery is depleted. Used in that fashion, the case consistently recharges the phone battery from 20% to 100% every time, though the "power low" warning light starts flashing at around 85% or so.
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Package Type: Standard PackagingColor: Black Verified Purchase
I bought 5 of these, 3 white & 2 black. I've had about 10 different battery packs for all generations of the iPhone except the 1st one. I'm a heavy user with podcasts, games, foursquare, facebook, google maps, etc. and I've had the uNu battery pack for about a month. Compared to the Mophie Juice Pac Plus:
- Much cheaper at US$35 vs. US$100
- While the dimensions are about the same as the Mophie, it feels bigger. Maybe it's because the Mophie has rounded edges & this one is angular
- While it's advertised as 1700 mAh, it feels like less. More like 1200. After charging all night, the Juice Pac plus (2000 mAh) can last me more or less till when I get off work before the iPhone's battery indicator starts to go below 100%. With the uNu, it goes below 100% at about lunch time. Maybe it's the chemistry.
- The micro USB connection is stronger than the Mophie. The reason I'm trying the uNu is because I've broken 3 Mophies. I would invariably knock the iPhone off the table while it was charing and snapped the Mophie's micro USB connector after which the Mophie would not charge. What a waste of US$100 x 3. I've continue to knock my iphone off the table & so far, so good.
- the micro USB cable it comes with is crap - I broke mine when it bent just a little.
- The case is good protection same as the Mophie - my iPhone 4S was knock out of my hands on to the sidewalk (I was 4squaring) and it bounced on the concrete. The uNu's upper left corner is cracked but the iPhone is fine. The battery still works great.

The big Mophies & the longest lasting battery packs I've had (I had one that had a solar back recharger) usually lasted me about 6 months before they would stop taking a charge. Will report back when this one dies. I suspect this is 1/3 the price partly because it won't last as long.
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