GETTING A CHARGE

Another day, another charger. We’ve been flooded with these things, but some are unusual.

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GETTING A JUMP

Get ready to cancel your Automobile Club membership. “Jumpr” is the size of a cell phone and can start a dead car battery.

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BATTERY

We heard from a reader who has a Kindle just like ours but its battery failed to take a charge. Amazon customer service told her to buy a new one, though her Kindle was only a year old. (They’re pushing it; don’t buy a new one.)

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BATTERY LIFE LOST

Why does the battery on your smart phone drain so fast? They’re all against you, that’s why. Here’s a list of the bad guys now:

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BATTERY DOCTOR

A young relative visiting us this summer noticed how quickly our Samsung Galaxy S3 went dead. A free app called “Battery Doctor” fixes that.

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GETTING A CHARGE ON THE ROAD

For months, we’ve been walking around with a naked Galaxy S3. Often it’s a dead Galaxy. We wanted a case we could get a charge out of.

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CHARGING YOUR PHONE

Our new Galaxy S3 phone has a removable battery. So rather than carry a charger or a cable to plug into a wall outlet, we carry an extra battery. But most smart phones and tablets don’t have this option.

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BUYING A NEW LAPTOP

Ultra-thin laptops are often called “ultrabooks” and look a lot like the Mac Air. They’re popular because of their light weight and long battery life. They use solid state drives (memory chips), so they’re fast and you don’t need to carry discs. The downside for many models is if the battery needs replacing, you have to send it back to the manufacturer. Only the Sony Vaio T13 and HP Elite Book Folio 9470 have user replaceable batteries.

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ANDROID BATTERY BLUES

Those free Android apps may not be worth it. You save 99 cents or so, but you get ads that drain your smartphone’s battery.

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LONG LIVE THE BATTERY

If you’ve updated your iPhone to the latest “iOS 5” operating system, you may have noticed that the battery drains faster. Here are some tips:

Set the time zone manually. Otherwise, it will constantly readjust itself, making repeat calls to the GPS radio signal. Tap “Settings,” “Location Services” and then “System Services.”

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Sherif El Refai . Shoredreams