Make cellphone batteries last a bit longer

2 Jun

If your cellphone loses its battery charge too quickly while idle in your pocket, part of the problem may be that your pocket is too warm.

To make it run down slowlier, keep the phone cooler, carrying it in your purse or on your belt. This same method can be used to preserve your battery should you find yourself away from home without your charger. Turn off the phone and put it in the hotel refrigerator overnight to slow the battery’s natural tendency to lose its charge.

“Cellphone batteries do indeed last a bit longer if kept cool,” says Isidor Buchanan, editor of the Battery University Web site. The 98.6-degree body heat of a human, transmitted through a cloth pocket to a cellphone inside, is enough to speed up chemical processes inside the phone’s battery. That makes it run down faster.

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