Default [Q] battery issue

hey all
i am new here .. and i am not a geek like most of u .. so i hope i can learn a thing or 2 while im here )

i know alot of ppl talked a bout the battery issue since litkat rolls around .

but can any one suggest for my a good modem to flash

now i am on vn rom v14.1 ..
with baseband v xxudnc1

battery did not last more than 5h


** sorry for my english