Many Of Us Today Commonly Use Samsung Galaxy Devices.But Any Of You May Not realise That This App Could Give You More Than 1+ Hour For Usage.....!!!!! Guess Which app it Could be...? Ans: If Your Device Is Using Much Battery And You Dont Want To Destroy Your Device Using root and Trying To install an Custom ROM Then Try "CM" Dont Take Tension I am not talking about "CyanogenMod" I AM Talking About "Clean Master"...!!!!!!!!! Yes , You Would BE Thinking Is This Guy Gone Mad? Then I Would say yes,,Because I have customly tried This App on My Samsung Galaxy Tab 3 (SM-T211)... it Minimumly gave me 30 mins Extra So if You Believe on Me & Trust On Your Galaxy Device Install Clean Master....! And Always Help EveryOnE On Android...!! If You Like This Post and Was Helpful For You......! Feel Free To Comment Below..! Share This Post With Your Friends ...