Back to Amazon.com

PRIME MEMBERS

Free shipping. Learn more
X

Free shipping for Prime members on Woot!

Woot! customers who are Amazon Prime members can enjoy special shipping benefits on Woot!, including:

Amazon Prime membership required. See individual offer pages for shipping details and restrictions. Not valid for international shipping addresses.

uNu Exera EX-04-1700W-RED 1700mAh Battery Case for iPhone 4/4S - White/Red

New
Limit 3 per customer
Sold Out
The Woot-Off is dead, but these deals live on!

Want more great deals? Sign up for our Daily Digest emails!

Help Professor Crapschmidt solve his Master Equation

Welcome to the Crapschmidt Conundrum, a cerebrum-crunching Woot-Off trivia game with crappy rewards! Follow along here to play, and keep an eye on new items as they appear. You don't need math skill to play -- only need a calculator, a search engine, and competitive/masochistic streak! 

Professor Basil P. Crapschmidt is on the verge of an intellectual breakthrough. After years of painstaking study, he has determined that the universe can be explained by the numbers found in random bits of trivia. His only problem: He can't do math.

Help this visionary but arithmetically challenged scholar complete his Master Equation and you shall be crappily rewarded! 

Back to the Woot-Off!

Features

  • Double the usage time for your iPhone 4 and 4S and helps users fully utilize their iPhone to complete daily tasks, such as Talk, web, text, video, music and gaming, without worrying about always having to recharge
  • Featuring Apple's coveted "Made for iPhone" certification, this powerful smart battery case has passed various lab test to ensure safety and reliability
  • Designed to its minimum form factor, plus a 2 piece slide-on detachable design. Only add the bulk when you need extra juice
  • Swappable battery module enables endless power supply for your iPhone with additional batteries (purchased separately)
  • Comes with a ultra-thin back cover which converts the bulky power case to a stylish slim case
  • The durable and stylish case offers the full protection of a hard-shell case and will protect your iPhone from bumps and scratches, so your phone will look and function like new
  • Fully functional, easily access all of your controls, as well as speaker and microphone
  • Adds up to additional 6 hours of talk time, 30 hours of music playback, 6 hours of web browsing and 240 hours standby

Shipping Note: Eligible for shipping to all 50 states

Warranty: 1 Year uNu

Specs

  • Battery: Lithium-Ion
  • Capacity: 1700mAh
  • Charging Time: 3-4 hours
  • Life Cycles: >500 Cycles
  • Dimensions: 4.72" x 2.44" x 0.71"

In the box:

  • uNu Exera EX-04-1700W-RED Battery Case for iPhone 4/4S - White/Red
    • microUSB Charge & Sync Cable
    • 1700mAh Battery Cell
    • Colorful Bezel
    • Exera Battery Housing
    • Slim Back Cover
    • Crystal Clear Screen Protector
    • Micro-Fiber Cleaning Cloth
    • Quick Start Guide

Specs

  • Battery: Lithium-Ion
  • Capacity: 1700mAh
  • Charging Time: 3-4 hours
  • Life Cycles: >500 Cycles
  • Dimensions: 4.72" x 2.44" x 0.71"

In the box:

  • uNu Exera EX-04-1700W-RED Battery Case for iPhone 4/4S - White/Red
    • microUSB Charge & Sync Cable
    • 1700mAh Battery Cell
    • Colorful Bezel
    • Exera Battery Housing
    • Slim Back Cover
    • Crystal Clear Screen Protector
    • Micro-Fiber Cleaning Cloth
    • Quick Start Guide

Sales Stats

Speed to First Woot:
5m 39.885s

Purchaser Experience

  • 0% first woot
  • 0% second woot
  • 0% < 10 woots
  • 0% < 25 woots
  • 100% ≥ 25 woots

Purchaser Seniority

  • 0% joined today
  • 0% one week old
  • 0% one month old
  • 0% one year old
  • 100% > one year old

Quantity Breakdown

  • 100% bought 1
  • 0% bought 2
  • 0% bought 3

Percentage of Sales Per Hour

0%
0%
100%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
12 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11

Woots by State

zero wooters wootinglots of wooters wooting

Best sellers

Deals our customers love best.
  1. (NEW) Apple 20W USB-C Fast Power Adapter
    $1199 $19.0037% off Pointless Price
  2. Microsoft Windows 11 Home or Pro (Your Choice)
    $1899$2099
  3. Durex Condoms XXL Longer & Wider 96 CT
    $2099 $89.9977% off Pointless Price
  4. Paleo Pines: The Dino Valley
    $499$699
uNu iPhone 4/4S Battery Case - White/Red
$38.99 Sold Out Electronics > Communications > Telephony > Mobile Phone Accessories
$38.99 USD false 1 Retail EA
1 3
Woot! Woot
4121 International Pkwy Carollton TX 75007 U.S.A.