Hot answers tagged battery-life
Never let it run down below 10% if you can help it. Running down to "absolute zero" harms your battery (and might even render it inoperable – which is why most devices shut-down before reaching that point). Modern LiIo batteries don't suffer from "memory effect", so ideally you'd plug-in a charger whenever possible: "trickle-charging" doesn't hurt them, low ...
If you're directly writing the kernel with fastboot then it shouldn't touch the user data. If you're flashing it through recovery it should also be OK, but it's possible for the update.zip file to perform other actions that could wipe data.
Stop running unnecessary applications in the background. For example: Bluetooth should be off when not in use and it can be turned on per usage like for example get a call then turn it on or make sure if turned on always plugged in to a charger. Make sure you get titanium back up; you don't need pro. Go inside play store and download it. Run it and then ...
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