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How to Get Long Life Out of Laptop and Cell Phone Batteries

Tech Soup Blog

I got to talking last week with Kiera Butler of Mother Jones magazine about the best ways to keep the rechargeable batteries in laptops and mobile phones healthy and long-lived. Dell says that a full life span for a garden-variety lithium-ion laptop battery is 18 to 24 months. That's a technique in which you let the battery run down or discharge to below 20% and then fully recharge it without interruption.