The new season of 24, positively the best drama on television, debuts Nov. 23 on Fox. Along with the thrill of season seven comes an age-old question for Jack Bauer fans: How the heck can one man's cell phone be put to such heavy use and stay charged for a full day? Mophie might be the answer.

The new season of 24, positively the best drama on television, debuts Nov. 23 on Fox. Along with the thrill of season seven comes an age-old question for Jack Bauer fans: How the heck can one man's cell phone be put to such heavy use and stay charged for a full day?

Mophie might be the answer.

Along with cases, arm bands and clips for iPhones and iPods, the company offers the Juice Pack (available at mophie.com for $100), an external battery for the iPhone, iPhone 3G and iPod Touch.

While the model for the iPhone 3G isn't publicly available until Friday, I had the opportunity to test one over the past few weeks.

Because Apple created their iPhone with an inaccessible battery, users can't swap a freshly charged battery for a drained one. And since the iPhone's 3G and WiFi modes use battery power at a fast rate, iPhone owners do have a constant need to charge their phones.

The Juice Pack is a creative solution to this dilemma. The battery holds enough of a charge that I was able to use my iPhone 3G for a full 24 hours of talking and apps-playing, with the phone's 3G and WiFi modes constantly on. Plus, the pack doubles as a hard-shell case.

According to Mophie, the Juice Pack allows iPhone 3G users to generally "double the battery life" of their gadgets.

A fully charged iPhone 3G offers up to 300 standby hours, and the Mophie Juice Pack adds another 350. The iPhone offers five hours of talk/WiFi time, and with the Juice Pack, you get six more. You can listen to up to 24 hours of audio; the Juice Pack adds an extra 28. Video playback is good for seven hours, and a Juice Pack gives you an additional eight.

To use the Juice Pack, simply slide in your iPhone or iPod Touch, much like placing it in a dock. When you do, you'll notice your phone indicates it's charging as it gets its power from the Juice Pack. Once that power is depleted, the phone's on-board battery supplies the necessary juice.

One problem, though -- my test unit stopped working after two weeks of use. I'm now back to recharging my iPhone two or three times a day.

If that happened to Jack Bauer, I fear we'd all be dead.

Got a gadget question or a high-tech toy to recommend? E-mail gspot@columbusalive.com