While it's true that turning on your phone uses more power than simply waking it from sleep mode, turning it off when you're not using it for hours at a time will conserve power in the long run. If you're going to sleep and don't have an outlet or charging cable, simply turn the device off.
Phones use battery power all the time, and even in standby mode they use power, so switching a phone off should stop the drain.
Shutting down your phone at night doesn't help. Mobile devices also rely on flash memory instead of mechanical drives so running 24/7 doesn't cause any damage over time. The only time you should shut down a smartphone or a tablet is when something isn't working as it should.
Since there is a small current even when switched off, it may last a few months. If you remove the battery, it may last for a few years. 3 to 6 months depending on the size of the battery and type of device. The answer depends on the type and brand of the batteries and the phone.
Unfortunately, leaving your phone charging for hours at a time while you sleep isn't great for your battery and could cause its performance to decline before you're ready to trade in your phone. Discover why charging your phone overnight is bad, and how often you should be charging your phone instead.
Dim the screen
Turn down the brightness of any screen you're on to at least half to help preserve battery life. This can usually be found in the Options or Settings area. On an Android device, such as a Samsung Galaxy, swipe down twice from the top of your screen.
Avoid situations where your phone can overheat, especially when your battery is fully charged. Your battery drains much faster when it's hot, even when not in use. This kind of drain can damage your battery. You don't need to teach your phone the battery's capacity by going from full charge to zero, or zero to full.
Experts recommend shutting down your phone at least once a week. After shutting it down, let it rest for a minute or two before starting it back up again. Not only will this help enhance your phone's performance, it is also incredibly beneficial for your battery.
Try to keep your battery's charge level between 65% and 75%.
According to Battery University, the lithium-ion battery in your smartphone will last longest if you keep it 65% to 75% charged at all times. Clearly, it's impractical to always keep your phone charge between those levels — but at least you know what's ideal.
Turn your phone off completely
While it's true that turning on your phone uses more power than simply waking it from sleep mode, turning it off when you're not using it for hours at a time will conserve power in the long run.
You don't need to switch off your iPhone every night. iPhone relay on flash memory and not on the hard drive. Shutting down iPhone regularly won't help you much. If your phone is getting slow or facing a peripheral connection problem, then turning it off makes sense.
On average, new smartphone batteries should last between five and eight hours on a full charge. Naturally, this depends on various factors, such as use frequency and the number of battery-draining apps. However, if the battery gives out two hours or less after it's been charged to 100%, it might be on its last legs.
Charging cycles are what impact the lifespan of a battery the most. The constant cycle of charging and discharging slowly degrades the battery's health. What makes it even worse is when your phone is frequently starting the cycle from 0%. It's best to keep your phone charged between 20-80% as much as possible.
Background Apps
Apps running quietly in the background are a common cause of idle battery drain in phones. Even when you think they're closed, many apps continue to leach power thanks to the permissions you granted them upon installation (whether you knew it or not).
The phone uses zero power when it is powered off.
It's not essential to reboot if your phone is running fine, but we recommend rebooting once a week if you encounter regular glitches or slowdown. To reboot your Android phone manually, hold down the Power button until the power menu pops up and tap Restart.
Your phone's battery lifespan vs the norm
How often you charge will affect the battery life, for better or worse. In short, the more often you top up your battery, the better. To REALLY minimize battery degradation, top up for every 10% drop in battery level.
Put simply, you can safely charge your devices overnight without having to worry about damaging their internals. Modern electronics automatically stop pulling current once their batteries reach 100% charge.
Here's how: Open your phone's Settings and tap Battery > More (three-dot menu) > Battery usage. Under the section “Battery usage since full charge,” you'll see a list of apps with percentages next to them. That's how much power they drain.
Moreover, keeping the device at full charge or completely drained can negatively impact your iPhone's battery health. For this reason, you should try to keep your device between 40% and 80% battery as much as possible to preserve your iPhone's battery health.
A lot of things can cause your battery to drain quickly. If you have your screen brightness turned up, for example, or if you're out of range of Wi-Fi or cellular, your battery might drain quicker than normal. It might even die fast if your battery health has deteriorated over time.