How to recharge electronics to get more out of them

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Do you unplug electronics after they are fully charged?

This is a hotly debated topic, partially because there’s more than one type of rechargeable battery and the rules are different for each. Since most gadgets have lithium-ion batteries, we will look at those.

How long do you charge?

Older lithium batteries could be damaged if the devices were plugged in too long. It’s called overcharging and it could make a battery’s capacity drop a lot faster than it’s supposed to, so don’t let these charge all night. (Video via eHow)

Read more: 4 developments that will change how you watch TV

If you bought the gadget in question in the past few years, you probably don’t have to worry. Because a lot of newer devices—even smartphones—will recognize when your battery is at full capacity and divert the power elsewhere, avoiding the ugly side-effects of overcharging.

Generally though, if you charge your devices to 100 percent every time, you might not be getting the longest possible lifespan, especially if the battery is lithium-based. (Video via WonderHowTo.com)

That’s because these rechargeable batteries are designed to last a certain number of cycles. Running your battery until it’s dead and then fully charging it again would be one cycle. 

Battery University, which has done extensive testing on this exact topic, says partial charging could actually make your battery last longer.

Only charging your phone to 80 percent each time might help you get more life out of the battery over its lifetime. So if you don’t let the battery fully charge, that cycle lasts longer.

That said, the effects of doing that might be minimal in the long term. So you can decide whether it’s worth your time to unplug before hitting 100 percent.

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Read more: How to disable iPhone feature that could cost you hundreds of dollars

For more money-saving advice, see our Mobile section.



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