Between our near constant email checking, Twittering, mapping, music playing, video taking, gaming and 4G web-surfing, the battery on the iPhone 5 gets put through the ringer. If you're perpetually running low on juice, Mophie's aptly named Juice Pack Helium can help. It's an accessory battery charger that slips on, case-like, to the iPhone 5 to give you added battery life.
The $80 Juice Pack Helium roughly doubles the thickness of the slender iPhone 5, which may be a turnoff, but most reviewers claimed it added almost 60 percent or more battery charge to the iPhone in a short period of time (under an hour). Mophie claims it gives you at least six more hours of 4G web surfing vs. just the iPhone 5 battery alone. The Juice Pack can be recharged simultaneously with the iPhone 5 when connected to a computer via its micro USB output.
There are currently no accessory charging cases for the iPhone 5 on the market, so Mophie won high praise almost by default. Still, reviewers were mostly happy with its style and impact on battery life. If you need the juice and can deal with the added heft it will add to your phone, it looks like a winner.
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