Is your smartphone battery manages to last for your whole day usage? Qualcomm has a free Android application that can help to extends battery performance and improves overall user experience. Yes, Snapdragon BatteryGuru is the one that intelligently making changes to optimize Snapdragon device functionality. Therefore, smartphones like LG Nexus 4, HTC Butterfly and Sony Xperia Z which use Snapdragon chipset can enjoy this feature.