I bought this USB charging unit because I have a lousy sense of direction. I get lost in buildings and in cities, even ones I’m familiar with. My iPhone’s GPS map is a godsend. I use it when I’m driving, walking, and taking public transportation.
When I was in Tokyo in June, I brought along a small Android phone installed with a local data SIM card. I used the phone as a wireless hotspot for my iPhone, and appreciated having access to the online map to guide me from my hotel to the subway station, and to attractions like the Tsukiji fish market and Kabuki-Cho. It was also nice to call home using Skype, and to post Instagram photos. The only problem was that the batteries on the Android phone and iPhone drained after a few hours, forcing me to ask people, chikatetsu wa doko desu ka? in badly-accented Japanese, to find the nearest subway station.
On my next overseas trip a couple of months later, I brought along a 6000 mAh Mophie Juice Pack Powerstation Duo. It’s a beefy battery pack that has two USB charging ports. I kept it in my daypack and my family and I used it to charge our phones while we were walking around London and Paris. It was like having a portable wall outlet, because it never came close to running out of juice, despite nearly constant use. It’s bulky — about as wide and tall as an iPhone 4 and nearly three times as thick (see photo below). I wouldn’t carry it in my pants pocket, but it isn’t a problem in a jacket pocket or bag.
If you want all-day smartphone Internet connectivity, the Mophie Powerstation Duo is what you need.
6000 mAh Mophie Juice Pack Powerstation Duo $100
Cool Tools · 237: Steven Dubner On my Cool Tools podcast, which I co-host with Kevin Kelly, we interviewed Stephen Dubner. Stephen’s an award-winning author, journalist, and TV and radio personality. He’s co-author of the Freakonomics books, which have sold millions of copies in 40 languages, and he’s host of Freakonomics Radio, which gets 8 […]
In this Cool Tools video, Sean Michael Ragan reviews a wall-mounted thread-checker – a handy thread verifier for nuts and bolts. It measures 3″ wide by 39″ tall, and, like the original version, features both male and female reference threads in a range of standard SAE and metric sizes. It’s mounted on a half-inch thick […]
It was an unparalled thrill to have Boing Boing’s own Rob Beschizza on the Cool Tools podcast! Read the show notes at the Cool Tools website.
Physics may have been that class you sleepwalked your way through in high school. But while it might have just slipped under your radar throughout your academic career, you probably shouldn’t have given it such shallow attention. Sure, we could focus on the immediate pluses of a career as a physicist, like the more than […]
If you’re out of work…well, first, you have our sympathies. Right now, about 31 million Americans are drawing some form of unemployment benefits, which makes competition for virtually any job savagely fierce. But since nobody wants to wallow in the miseries of unemployment, the only legitimate course left open is to scrap like crazy to […]
If you want swole arms cut like tree trunks, you start savaging the curl bars. If you want to sculpt a tight, firm core, you have lots of planking and bridges in your future. So what do you do if you want to knock out that double chin? Or put a little added definition into […]