[Q] Standby / Airplane mode battery consumption

---

I have been using X10 mini pro since the past 3 weeks.
After a few days of discharging cycles, I see a improvement in battery performance. I've already read about the tips section on battery improvement.

I manage to get about 11-12 hours of standby with wi-fi/bluetooth/background data off (No Music, no videos, screen off 90% of time). Screen timeout is set to 30 secs.
I have not installed any other software apart from Helix launcher & Advanced Task Killer.

I observed that when the cellphone is left in Airplane mode for over 10 hours, battery depletes by just 1-2 %.
However, if I leave the cellphone in GSM only mode, the battery loses from 100% to 10% in just about 9 hours with display set to lowest brightness

The signal strength is always between -57dbm to -90 dbm in my area.

I'm not able to understand what is eating up the battery.
Initially I suspected that I'm not on the latest firmware which could be using a lot of battery on cell standby. But I see that the build number is 1.1.A.0.8

Anyone thinks that this could be a GSM service provider issue?
When is the next firmware update coming?

Originally Posted by kukkerke

I observed that when the cellphone is left in Airplane mode for over 10 hours, battery depletes by just 1-2 %.
However, if I leave the cellphone in GSM only mode, the battery loses from 100% to 10% in just about 9 hours with display set to lowest brightness

That is true, I have experienced this. It is not the Service Provider issue, it is something related to signal reception. If you are on call for 1 Hr battery, drains by 20-30%, this is too much.

The worst part is short duration calls, everytime you call some one, battery reduces by 1-5%. To make matter even worse, you cannot replace the battery