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adiss
12th December 2007, 04:03 PM
hi every one i have recently perchest the Qtek 8500 and i see that the batry gose very shortly driy (2~3 days) now i wonder if its posibol te put out the green flashing light under the externel screen so that wil help to give the batry charg loger life. so if thair is an aap. or an program for this jub please help me.
with many thanks in advance.

Freezer
12th December 2007, 08:35 PM
There are several applications which let you disable the led's on phone's.
You can even do this yourself in the registry (if you know the path).

Problem is, I don't think it's been done on the Qtek 8500 phone. Most other phones work fine with the disabling software/registry, but not the 8500.
Anyway, it's not like the led's take a lot of power. I think it would save perhaps 15 minutes in 3 days, tops.

Things which do take 'a lot' of power is the external screen (if it's on), Bluetooth, having files/applications open and the SD-card.
If you turn everything off and get rid of the SD-card it'll probably save another few hours.

But in short, I think 2-3 days is quite general for this type of phone. It's not a Nokia, Samsung or Sony Ericsson 'regular' phone which have stand-by times of several weeks.

The current WM devices tend to have a max stand-by time of 3 days I think.

dancer_69
12th December 2007, 09:33 PM
2-3 days is very good. My qtek 8500 without more than 20-30 minutes calls it stays on only a day, a day and a half most. What battery you have?

nevermind
13th December 2007, 09:03 PM
It's a LED, so we can say that it uses almost no power at all. Not even the 15 minutes in 3 days LOL

mick3
16th December 2007, 10:27 PM
It's a LED, so we can say that it uses almost no power at all. Not even the 15 minutes in 3 days LOL

One LED does actually cut 50 percent of your phone standby time while permanently on. That's why the WM dev guys let them blink shortly in longer periods.

Let me quote WM's Mike Calligaro at this topic:

"..A typical LED, while on, burns 5 mA of current. Remember that the entire phone in standby is burning 5 mA. Turn an LED on and leave it on, and you'll cut your battery life in half. Fortunately, we don't usually leave LEDs on. We blink them. Typically, the blink rate for a LED is something like 0.2 sec on, 1.8 sec off. Since that results in the LED only being on 10% of the time, overall it just burns 10% of its 5 mA, or 0.5mA. .."
http://blogs.msdn.com/windowsmobile/archive/2006/08/04/689069.aspx

As less the phone consumes idle as more significant the LED power consumtion becomes. So the best would be to switch the LED off completely.

Cheers, Michael

nevermind
16th December 2007, 10:51 PM
One LED does actually cut 50 percent of your phone standby time while permanently on. That's why the WM dev guys let them blink shortly in longer periods.

Let me quote WM's Mike Calligaro at this topic:

"..A typical LED, while on, burns 5 mA of current. Remember that the entire phone in standby is burning 5 mA. Turn an LED on and leave it on, and you'll cut your battery life in half. Fortunately, we don't usually leave LEDs on. We blink them. Typically, the blink rate for a LED is something like 0.2 sec on, 1.8 sec off. Since that results in the LED only being on 10% of the time, overall it just burns 10% of its 5 mA, or 0.5mA. .."
http://blogs.msdn.com/windowsmobile/archive/2006/08/04/689069.aspx

As less the phone consumes idle as more significant the LED power consumtion becomes. So the best would be to switch the LED off completely.

Cheers, Michael
huh, that changes everything I've ever learned..

thelostsoul
17th December 2007, 06:35 AM
His stats are for 0.2 seconds on, 1.8 off. The Cing 3125 (probably same for all other variations like the 8500) is more around .2 seconds on every 4.8 seconds. SO it's probably less usage. Added to the fact that the phone probably uses more than 5mA, all things considered, I'd say it's more than negligible.

However, if you unlock your phone properly, the app "DontForget2" will successful stop the blinking. But, I read that some such apps actually might save the battery life by stopping the blinking, but utilize so much CPU to do so, that you wind up losing battery life in the long run. Unfortunately, I believe this was the case the last time I tried the app.

mick3
17th December 2007, 02:48 PM
The Cing 3125 (probably same for all other variations like the 8500) is more around .2 seconds on every 4.8 seconds. SO it's probably less usage.
This would give you less than 4% standby shortage (4h..6h) assuming the 5 mA. Yes, this is negligible.

Added to the fact that the phone probably uses more than 5mA, all things considered,

Power * Removable and chargeable Lithium ion polymer
# Typical capacity: 750 mAh
# Standby: 100 - 150 hours
For me this seems 5 mA is really the best case (gsm off?) and 7.5 mA is with gsm radio on (and bluetooth enabled). Maybe the phone also could spend less then 5 mA if you underclock the OMAP850 CPU?

Best, Mick