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1) Go sitting>phone>display> brightness (dark)


 




2) Go sitting>network>network mode (gsm) dual mode used for 3g & gsm network but gsm




used only gsm network, so dual mode need power more then gsm]


 




3) After used bluetooth u must turn off it, Bcoz if u bluetooth turn no after 8 house your battery 50% charge over


 




4) Used ringtone not vibration alert.


 




5) After hear songs must removed head-phone.


 




6) Turn off your mobile then charge. Its good 4 your mobile health.


 




7) More switch off/on  need much power.


 




 Turn off your key-pad sound.[/center:2rpauaej]

Thanks for the tips

Yeah, running 3G/Bluetooth or Wi-Fi all the time can drain your phone's juice faster. More so if your phone's known to have a bad battery life even with normal use.