“It’s late in the day and again my iPhone 3G’s battery is running low,” Eric Benderoff reports for The Chicago Tribune. “That makes this an apt time to take a fresh look at an increasingly important part of our gadget portfolio, those portable charging devices that provide a shot of juice in a pinch.”
“The iPhone 3G magnifies such issues. The Wi-Fi connection, the faster network speeds and GPS features all strain the battery. So for the last week, I’ve been using a few portable chargers to keep the iPhone and some other gadgets ready to go,” Benderoff reports. “‘It provides a supplemental charge,’ Ken Klarfeld, iPowerRush president, said of his portable charging device, one of the first targeting the iPhone 3G. ‘You’re on a plane, watching a movie and your iPhone goes dead? What do you do?'”
“With the iPowerRush [US$30, iPowerRush.com], you should be fine—as long as the six AAA batteries it needs work,” Benderoff reports. “The iPhone battery was nearly dead when I plugged the iPowerRush into the iPhone. About 45 minutes later, I had enough power to make it home, a 30-minute commute, playing with the iPhone all the way.”
“Another approach is a portable charger with multiple connectors, or ‘tips.’ These tips are made for iPods, various mobile phones, digital mobile phones and countless other gadgets,” Benderoff reports. “One of my favorites is the Powerstick, a $70 device (Powerstick.com) that includes nine tips. I’ve used them for many of my own gadgets, as well as those I review. It always works—and sure enough one of the tips it ships with worked with the iPhone 3G.”
“Again, the iPhone was nearly empty when I connected the Powerstick. It didn’t fully charge the device, but it provided a longer charge than the iPowerRush,” Benderoff reports. “You recharge the Powerstick via USB, so when it’s empty, you simply plug it into a computer’s USB port. A recharge takes about 30 minutes.”
More details and info about other iPod-only portable chargers here.