Your Smartphone's battery won't stay 100% forever. No matter what you do batteries don't last forever. But you can always increase your battery timing. Most smartphones have either a lithium-ion battery or a lithium-polymer battery. Both are actually lithium-ion though. Most flagship devices released in 2016 don't have removable batteries.
Today's smart apps and big AMOLED screens drain on your battery, but there are lots of things you can do to make your Android device battery last longer. And that's the reason you're here reading this article right? So, let's learn ways to make your Smartphone's battery last longer than it usually does.
Doze mode was introduced in Android Marshmallow. In Nougat it has been more Improved (Now it works all the time). Doze mode essentially just shuts down things you're not using depending on how long it has been since you've touched your phone. Network connection is severed and syncing only happens during specific intervals. You should must use it to conserve battery.
Greenify allows you to put other apps into hibernation when they aren't in use, preventing them from operating in the background. This frees up system resources and boosts battery performance. You can't just hibernate every installed app but there are a lot of Android apps that perform actions you don't know about. If you've Rooted your device, this app might would surprise you. Greenify actually works!
Get Greenify from Play Store
Dark Themes and Wallpapers
I personally, love dark themes or black Wallpapers and for good reasons. Black wallpaper can increase battery life because AMOLED screens only illuminate the colored pixels. Black pixels are unlit, so the more black pixels you have, or the more darker pixels, the less power is needed to light them up.
Turn off Google hotwords
Stop your phone from always listening. Open Google settings from your app drawer and tap Voice heading. On the next page, select OK Google detection. In this menu, the best option for battery life would be to untick all the boxes.
Here's the thing auto-brightness is usually way brighter than you really need. It's better to manually set the brightness to a level that is low but comfortable, and bump it up when necessary. This would boost your battery life. Go to the display settings and uncheck Automatic Brightness.
Seriously! Who needs haptic feedback? It actually takes more power to vibrate your phone than it does to ring it. The haptic feedback is just another battery drainer. Go to settings and uncheck it.
GPS, Bluetooth, NFC, Wi-Fi
Turn off GPS, Bluetooth, NFC, Wi-Fi and mobile data whenever you don't need them. You don't need to be connected all the time. If you use Wi-Fi a lot though, say at home and at work, then it makes sense to keep set your Wi-Fi to 'Always on during sleep'.
Ditch Unnecessary Widgets
Ditch widgets you don't need, especially those connected to the internet, such as weather widgets. If you have multiple widgets across several home screens, which are constantly syncing and updating, kill them.