[Question] Please suggest me a phone with a good battery life , around 100$-120$

[Seadi1]

Hi everyone I just received the phone Royalstar 5S from Pandawill . The phone was cheap , but i didn't expect such bad battery condition . The battery is 1500mah and only holds 4-5 hours , i have to charge it twice a day , even thrice . I agree i use the phone almost all the time , playing games or chatting online . So can please anyone suggest me a phone that holds at least 12 hours of battery , playing games and using network internet ? I have 100$-120$ budget . The phone should at least have 512mb ram ZTE V965 ?