Can i charge my phone at 40 percent

Keeping your gadgets charged is easy in the short term. Just keep an eye on their battery levels and plug them into the wall when they get low.

But keeping your gadgets’ batteries healthy in the long run is a much more complicated proposition.

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The lithium-ion batteries that are in virtually all of our gadgets are chemically destined to degrade over time, holding less charge than they used to, and blowing through what little they have faster than before. It’s impossible to stop this process, but it is possible to slow it.

To find out the best ways to postpone the inevitable, we talked to Isidor Buchmann, CEO and founder of Cadex Electronics and main contributor to the extremely in-depth and invaluable online resource Battery University, about how exactly you should treat your batteries in a perfect world — and what you can do to maximize their life.

So brace yourself, because here’s what you’re probably doing wrong.

Editor’s Note: This story is part of Product Support, a column devoted to helping

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