Is it okay to leave our phones charged overnight?

Is it okay to leave our phones charged overnight? And the answer is yes. This is why.

Long before lithium was adopted to power our devices, nickel-based batteries were the powerhouse of our devices. The problem is they (nickel batteries) had a sick lick memory, i.e. they tend to forget their charge and remember the one they were before receiving a charge. Lithium-ion batteries, on the other hand, do not have this issue so they are a better alternative.

Charging our devices for elongated times causes the battery to expand and you might be a victim of this! If you own a smartphone, you're not part of the mix, and we'll explain why in a second. Once the battery is full, it overheats and eventually expands as it cannot hold the incoming charge. Luckily our smartphones have a walkthrough to this problem. Okay, let me explain.

When our phones (smartphone) become fully charged, they stop the current from coming through and use a power cord as their primary source of voltage, so we'll wake up with our devices fully charged.

Its fine, we can leave them plugged overnight! 

This begs the question; is it necessary to charge our phones for long hours if we've just bought a new battery or when they are new? Well, you've guessed it, no! When the battery is full, the device stops the current.

So when you've bought a new phone or a battery; charging batteries long hours won't do them any justice, but the recommendation is to give them a full charge, deplete the battery quickly and then charge them again.

A thread to our Battery.

The major thread to lithium-ion batteries is charge cycles. Charge cycles are the number of times the device goes from empty to full. Even though there is no set number of charge cycles, if our devices go from full to empty too many times, the battery will have issues.

A possible solution

Our device's battery can and will fail us in their long use. But smart people advise us to keep them charged between 10% and 90%, i.e. we shouldn't let them drain all the way to zero or let them to fully charge.

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