welcome to the club..for the battery,maybe they will release it soon, not just sun global will produce it i think..smartphone use more power than normal phone since its like pc, many background process and services running without u notice it..mine only last for two day, normal use for call & sms. not listening music too much. few tips for save battery:
* turn off any un-needed services or process, use when needed (like 3g, wifi, bluetooth)
* lower the brightness level
* lower the ringtone volume and use only short ringtone especially for sms notification
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if i'm not wrong, Clear type screen protector is only RM10 and Matte type (anti-finger print) RM15. never heard about "NGV" protector anyway. if "UV", maybe for Ultra Violet
i had done all that u said and also have kill the program that running in background using advanced killer and even not listen 2 music,juz sms and kol(seldom) and play games(very seldom).but the battery life remains same last 4 average 1 day.everytime i check 4 running apps,there were always apps that running in background even i have killed them.i think the advanced killer software does not good n i have 2 wait 4 the sun global battery