For Good Battery Life you can follow the some of tips if possible: -1. Try to recharge your celles when is showing about 40% of charge and a regular basic of charge maked your battery more longer life.2. Dont use clean maneger again and agian . It uses a lot of alogorythm in processor and consume a lot of energy.3. If there is a HALL LIGHT SENSOR in your mobile use the autobrightness mode for sceen brightness control.4. If you are using a mobile phone with AMOLED / SUPER AMOLED display the use a night mode application for enhance the browsing time with dimming the display.5. Choose the SNAPDRAGON AND EXYNOS based processor mobile instade of MEDIATECH varients. Because the SNAPDRAGON AND EXYNOS varients are run in low power consume amd makes the handset more power efficient.6. Set the display setting SCREEN TIMEOUT at 30sec .7. Dont use Screen Glar or Glance if you are using a LED display handset.8. Try to used Genuine Charger to charge the cell.