![]() ![]() To maximize battery life even more, the company suggests turning the case off again once your iPhone passes the 80 percent charged mark again. Mophie recommends turning on the case only after your iPhone’s built-in battery drops below 20 percent. ![]() The case powers your iPhone only when you flip the switch to on. Press the button, and the LEDs light up to indicate how full the battery is. On the back of the base sits a button, four LEDs, and a switch. And as with the Helium, the Air’s design leaves your iPhone’s headphone jack deeply recessed-while thin plugs like the one on Apple’s stock EarPods will fit through the case’s opening, the larger plugs on some third-party headphones will require the use of the included adapter. The base of the Juice Pack Air is very similar to that of the Helium: The Micro-USB port at the bottom (which can charge both the case and an iPhone 5 inside the case) is surrounded by a metal plate, suggesting that perhaps one day Mophie might release a contact charger for its cases. That’s two to three more hours than the Helium offers. Mophie says that the Air’s battery should add up to an additional eight hours of talk time eight hours of 3G or LTE Internet use or ten hours of Wi-Fi internet use. The biggest size difference is that the Air is just over 0.1 inches wider, and even there the difference is barely noticeable.īut with that slightly bigger size comes serious battery power. Still, while Mophie praised the Juice Pack Helium for that case’s slim profile, the Air isn’t much larger. As those measurements should indicate, the case does add a noticeable amount of bulk to the iPhone 5: A Juice Pack Air-clad iPhone 5 is nearly 0.7 inch taller than, and twice as thick as, the bare iPhone. The Juice Pack Air weighs 2.7 ounces and measures roughly 5.5 inches tall, 2.6 inches wide, and 0.6 inches thick. Two tiny pins in the lower portion of the case connect it to the battery housed in the larger piece. The smaller piece plugs into your iPhone 5’s Lightning port, while the longer piece covers the rest of your iPhone. The goal was to completely deplete the reserve by 2015.Like the Helium, the new Juice Pack Air is split into two pieces. ![]() So even though the stuff doesn’t burn, we began having a fire sale in 1996 at just $47 per thousand cubic feet. (Although helium does exist in the air, there’s no way to isolate and harvest it, so it has to be produced by other means, including as a byproduct of mining natural gas.) By the early 1970s, the United States had squirreled so much away - some 40 billion cubic feet - that storage costs were becoming prohibitively expensive. Bureau of Mines was the world’s only producer of helium, according to a 2013 National Geographic article. government recognized helium’s value when, in 1925, it established a reserve to keep a healthy supply available to stay in the forefront of the lighter-than-air airship race. So the balloons are deflated, rolled up and taken back to the Macy’s studio, where they are stored in “surprisingly small hampers” for another year.Īs you imply, however, a more critical question is whether we’re wasting a valuable resource on cartoon characters at a time when some have claimed we’re facing looming helium shortages. After all, we breathe in helium all the time, because in addition to nitrogen and oxygen, our atmosphere also contains trace amounts of the gas - about. But the amount is so negligible compared to the overall volume of air that it doesn’t make a difference. So the helium is simply released to go up, up and away, because recapturing it is impossible.
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