Question: Is The 40 80 Battery Rule Real?

At what percentage should you charge your phone?

Plug it in when the phone is between 30 and 40 percent.

Phones will get to 80 percent quickly if you’re doing a fast charge.

Pull the plug at 80 to 90, as going to full 100 percent when using a high-voltage charger can put some strain on the battery..

How do I keep my battery 100% healthy?

13 tips to extend the lifespan of your phone batteryUnderstand how your phone battery degrades. … Avoid fast charging. … Avoid draining your phone battery all the way to 0% or charging it all the way to 100%. … Charge your phone to 50% for long-term storage. … Extending battery life. … Turn down the screen brightness. … Reduce the screen timeout (auto-lock) … Choose a dark theme.More items…•

Does dark mode save battery?

Your Android phone has a dark theme setting that will help you save battery life. Here’s how to use it. Fact: Dark mode will save battery life. Your Android phone’s dark theme setting not only looks better, but it also can help save battery life.

Why is my battery stuck at 80?

This is usually caused by the battery getting too warm. … To extend the lifespan of your battery, if the battery gets too warm, software might limit charging above 80 percent. Your iPhone will charge again when the temperature drops. Try moving your iPhone and charger to a cooler location.”

Should you always charge your phone to 100?

For years, it’s been said that letting your phone charge all the way to 100% will result in the battery degrading faster compared to unplugging once it reaches 80% or so. … According to Cadex (the world’s largest manufacturer of battery testing equipment), who should know, 50% to 80% is ideal for lithium batteries.

Is it OK to use phone while charging?

There is no danger in using your phone while it’s charging. This myth comes from fears about batteries overheating. … Charging tip: While you can use it during a charge, having the screen on or apps refreshing in the background uses power, so it will charge at half the speed.

Does charging your phone overnight ruin the battery?

The idea is to wake for the day with 100 percent charge on your smartphone’s battery. But then you heard that charging your phone overnight damages the battery and eats away at its capacity over time, so you turn to Google for answers. … Yes, you can leave your phone plugged in overnight.

Is Fast charging bad for battery?

The lithium-ion technology that goes into batteries powering modern Android smartphones allows for fast recharging. Consumers who are interested in a fast-charging solution sometimes worry that a faster transfer of electricity could damage the phone’s battery. But in fact, you have nothing to worry about.

Should you only charge your phone to 80?

Roughly speaking, every 0.1V decrease in cell voltage doubles the cycle life, according to Battery University. Therefore, charging up your phone in that 30 to 80 percent range keeps the voltage lower and prolongs the battery lifespan. Battery University Lower battery voltages help prolong capacity over time.