How to Double Your iPhone's Battery Life

NEW YORK (TheStreet) -- I stopped and started several times before deciding to publish this article.

There's reason to have hesitated. One, I'm reluctant to write an article that reads like an ad for a product. Two, this isn't the type of article I typically write. Three, there's not much to say other than the answer to the question the title poses. And, four, I might be telling plenty of people something they already know.

But then I thought again ... if I didn't know about this, enough other folks likely exist who don't either, making it all worthwhile. Plus this is a big problem for a lot of people, if my Twitter feed serves as an any indication.

Battery life on Apple's ( AAPL) iPhone. Namely iPhone 5. Depending on how you use your phone, it can leave a lot to be desired. Personally I have never had much of a problem, but enough people complain that one likely exists. From an investment perspective, some folks are bearish AAPL because they see Samsung and others passing Apple by.

Generally speaking, you can get other smartphones with superior battery life. Some models let you swap batteries. And so on.

I tend to discount these issues -- my long-term thesis notwithstanding -- as Apple remains present-day dominant. But, again, recurring beefs warrant attention.

I dealt with more of a "charge" issue last week when I was traveling in the Northeast. I left my iPhone charger at TheStreet's office on Wall Street when I left Wednesday evening. Staying in Midtown Manhattan, I didn't want to go back to fetch it or trek to the Apple Store (even though it was quite close to my hotel); as such I was left without a charger and, headed into my Thursday Amtrak trip from Penn Station to Washington, D.C., with a dying phone.

No big deal I figured. If I can't get a charge, I can live without the phone until I can bum a little white cord off of somebody. On the train, the gentleman seated next to me let me use his charger. That got me up to about 75%. But, by the time I arrived at my destination in DC, I was almost depleted.

I was visiting Jake Tapper and his fantastic crew at CNN's program "The Lead."

Thanks to these cats for making me feel at home. Good people. I felt so comfortable in the CNN Newsroom that houses The Lead that I was cool with shouting out to the group -- Does anybody have an iPhone 5 charger I can borrow!?

Nobody had one, however, two folks (TheLead producers Jason Seher and Rick Saleeby) both offered up this seemingly foreign object -- an iPhone 5 case that doubles as a charger/extra battery.

Mophie!. I was shocked I had never heard of this thing. Never even saw it brought up in association with the iPhone 5 battery gripes I come across. But the damn thing worked so well -- and impressed me so much -- that I went to the Apple Store on Fifth Avenue in New York City to buy my own first thing Friday morning.

Mophie is a simple device. You attach it to your iPhone (again, it doubles as a sturdy, granted not-so-light case) and plug it into the wall. At a full charge, the $99 Mophie attachment is merely a battery that effectively doubles the life of your iPhone. Once the Mophie's juice is gone, your iPhone starts using its own battery.

I will never take this thing off of my phone. Ever.

Even under heavy use, my iPhone 5 lasts all day now. 12 to 16 hours easy.

Sure, it brings the cost of a subsidized iPhone 5 up to $300, but who cares? Well worth the expenditure if you use your smartphone as much as I do or worry about being left without it for a period of time.

-- Written by Rocco Pendola in Santa Monica, Calif.

Rocco Pendola is TheStreet's Director of Social Media. Pendola's daily contributions to TheStreet frequently appear on CNBC and at various top online properties, such as Forbes.

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