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Now, save the picture and go into your With the arrival of Marshmallow came a new feature called Doze, which helps you get more out of your device's battery.
Let's explore how to increase battery on your smartphone.
First, some background: most smartphones have either a lithium-ion battery or a lithium-polymer battery.
If your phone has an AMOLED screen (like most Samsung devices), use a dark-colored background.
Black wallpaper can increase battery life because AMOLED screens only illuminate the colored pixels.
Both are actually lithium-ion though, and as such, do not have a 'memory', which means you can charge them from any level – you don't have to fully discharge them before charging them up – and you don't have to charge them all the way to 100 percent.In fact, these types of batteries suffer from low voltage problems, so it's actually better to partially charge them (say, from 20 percent to 90 percent) than to fully charge and fully drain them.