Well, this is for those who having battery problem. Had you ever suspect it is due to AP set problem? My is Original set, and this is the test I carried out with my friend. Using a AC 5X charger (Output 800mA) charging an original BP-6MP from one bar to fully charged (battery full) requires 1 hour 34 minutes.
If you found your charging time is shorter than that, let say an hour or less than that, probably you are not using an original battery, and for sure you have battery life issue. As I mention earlier, hologram, serial number can be duplicated, using such way to identify an original battery is useless. Assuming charging time proportional to battery capacity, theoretically you should have the same charging time as mine.
To do this experiment you do not need to always keep an eye when charging your phone. Just set an alarm (an hour, an hour 15 minutes, an hour 30 minutes) and check your N82 charging status when the alarm rang. In case you are using N73ME original charger which is the AC 4X (Output 890mA), the charging time slightly less compare to AC 5X@1 hour 30minutes. My N73ME original battery took 2 hours sharp to fully charged. Compared to another AP battery which only took 1 hour to be fully charged. Of course it drains out lots faster!
So start your test now and told me what you observe.
Charging time with AC 5X - > 1 hour 34 Minutes
hmmm..mine is ap..but came with AC5X charger...but then earlier i was wifi viewing youtube...from 4th bar..use around 30min++....still left 2bar..then play sum music for 5tracks at vol 80...left 1 bar...and took few pics with flash...batt low..so i guess mine should be ok...gua..haha