[Tilt, TyTN II, MDA Vario III General] LGB:
I think it is the phone in the Kaiser that drains the battery.

NOTE that this is NOT about using the built in funtions too much, please read the conditions of this test.

First of all, I am not a typical Kaiser user - the sim card I am using at the moment doesn't support 3G or any fancy functions - just domestic calls and sms!

I think it has been some weeks where I had this problem, but I am not really sure. But here is what I did to test, read it closely:

Kaiser is started from cold last evening, no apps started, nothing running. It has been charged to 100%, and before going to bed, I disable the only thing I have running - the phone! No bluetooth, wireless, nothing at all. I press the power button briefly to put the phone to sleep, right after pulling the charger plug.

All night, the phone is sitting in flight mode, without charger, and in the morning I wake it up and check the battery. 100% it says. Then I turn the phone on (3G is selected off, I have the modified version of comm manager where 3G is included). I check the battery again, 100%, and then mobile signal strength, there are 4 bars, plenty of signal. Then I briefly press the power button to turn off the display.

Time is 0800, phone is on, display off, and I leave it on the table in the same place where the mobile signal was 4 bars. I remove the battery cover, just to be able to monitor the battery temperature during this test. Room temperature is regulated to 23 deg C, and the phone is not exposed to sunlight.

This is what happened:

Phone on glass table, no bag, battery cover removed, 23 deg constant temp, no sunlight

0800: 100% Phone is turned on via Comm Manager, 3G deactivated

0815: 96% slightly warm battery, can just barely feel the battery is a little warmer around the middle, but it is definately warm from battery.

0930: 83% battery still warm

1007: 78% warm battery

1105: 68% still warm - checking the phone signal, still 4 bars

1312: Green light flashes like every other second, but I cannot turn the phone on. Not even sliding the keyboard open wakes it up. I remove the battery and then put it back in place, and turn on the phone.

1313: The phone has booted, battery is now 16%! That is why it did not want to wake up again ...

I connect the charger, checking SMS and phone list. No calls or messages.

So, from 0800 to 1313, just over 5 hours, the phone went from 100% to 16%, with NO USE AT ALL except the phone in standby. Compare that to being all night in the same state, EXCEPT with the phone off.

If it is not something with the phone itself, it MUST be something related pretty close to it.

Some users only have "normal" battery problems because they use the phone with too many functions. As this is obviously NOT the problem here, spare these comments (your phone is OK then). This s... is serious!

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I urge others who have battery frain problems on the Kaiser to do the same test. Most should be able to do this on - say - a saturday evening (the following day should be one where you don't need your phone too much, and where you don't expect people to call or text you too much).

BATTERY DRAIN TEST:

1. Make sure phone is charged to 100%

2. Reboot and don't start any apps

3. Check no apps running, kill any that started by themselves

4. Turn off everything in comm manager (flight mode, basically)

5. Power off the display, and leave overnight, CHARGER DISCONNECTED.

6. When you get up in the morning, turn it on (should still be in standby with display off)

7. Check battery level and note the time and the phone signal strenght

8. Turn on the phone in the comm manager, nothing else

9. Press the power button briefly to bring turn the screen off

10. Every hour or so, note turn the display on and note the battery level and confirm that the phone signal is still OK

Mine lasted just about 5 hours like this, how long does YOUR Kaiser last???

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