hi there, previously i didnt use any data plan, just connect to mifi modem, my battery can last from morning to night, around 10-12 hours with normal usage(whatsapp, browsing, no gaming)

but now i have just subscribe data plan, den with the same usage, my battery drains from 100% to 20% not even half day! around 5 hours only!

is this normal??anyone experiencing this?

ok, ill try for 2G, but wont the speed like tortoise? still able to send/receive whatsapp or surfing?
before this i used maxis, their 2G is like no internet, no internet connection and whatsapp text also canot send. sucks.