Hi
Mine does about 1 day if I am lucky, WiFi use fries it. This is about what I expected.
The 'time left' meter on the today screen starts at about 4.5 hrs and seems pretty accurate.
If I switch off the auto-off and leave it running with wifi on then it gives me a low batt warning (@ 20%) after about 5 hours. (wifi on, Beams off, backlight off after 30 secs, bluetooth off).
Nigel
Extended Battery??
Standard battery is 1450mAH. Does anyone know if an extended battery exists?
Nigel
U may want to buy this if u want a really "power" spare battery.. but cost quite high...
http://www.proporta.com/F02/PPF02P05.php?t_id=952&t_mode=des
Hi,
The battery life depends on how the device is used. In my case, with phone signal strength at full bar and without incoming or outgoing calls and not usage and stationary, the battery will last 48hours on a full charge. With Wifi on the drain on battery is fast, I am getting about the same figure as you have indicated. I also notice that the phone radio draw more power if you are on the move and in some instances I have notice that it draw twice the amount verses staying stationary scenario. The comparison is based on no incoming or outgoing calls.
Hi
Yes, the radio will draw more power if you are on the move. When stationary, the device will tell a base station (BS) that its there, and then there will be no further comms until say 4 hrs time (the time depends on network config), when the BS says 'hey, device X, you still with me?'.
When you are moving, things are very different, the device (MS) will be handed over from BS to BS as you travel. Sometimes there will be 3 base stations serving a given area, the MS will communicate, and return QOS info to the network to decide which base station it should use. This can happen pretty often. A Hand-over occurs when the signal from a new station exceeds the signal from the old station. There is some hysteresis applied to the handover to ensure that it does not swap between 2 or more BS that offer almost identical signal strengths but regular flipping from BS to BS can still occur. There is much more to it than that of course...
Sorry, used to work at Rohde&Schwarz, developing this: http://www.rohde-schwarz.com/C1256AAF004806F9/0/C53C93BFD3B81600C1256AB5004B3210
Regards
Nigel
Hey, that was really informative - thanks!
RaNmA_ said:
U may want to buy this if u want a really "power" spare battery.. but cost quite high...
http://www.proporta.com/F02/PPF02P05.php?t_id=952&t_mode=des
Click to expand...
Click to collapse
Hi
This is listed an an XDA II battery, not a IIs batt. Dont know if there is a difference, I have emailed them to ask if it fits the IIs.
Thanks
Nigel
well my battery lasts for 2 hours full use... and 24 hours standby on flight mode with no bluetooth...
I have the XDA backpack. With this I experience 3 days standby and about 1.5 days on regular (about 30-45 minutes of call, and about 100 SMS messages sent and received combined) use.
Poch
Hi,
Can you please install free acbPowerMeter (http://www.acbpocketsoft.com/Products/acbPowerMeter/acbPowerMeter-Overview-2.html) which is free. Enable bluetooth, turn off the phone and let it run for 10 mins or so with no calls, data etc. Please check average mA used and post results here so we have some data at hand to compare different ROMs and power consumption.
My case
1.54.07.00 --> power consumption was between 50-60 mA
1.48.00.10 --> power consumption was between 15-25 mA
Again this was with bluetooth on and no data, incoming or outgoing calls, screen is off for 10 mins or so.
Good idea.....everybody please give this a go.
1.48.00.10 - GSM 1800 - Average 34mA
1.48.00.10 - UMTS 2100 - Average 33mA (interesting)
Ideally we could use somebody flashing a naked ROM (such as pandora) and trying out each radio on both GSM and UMTS (3G). My tests have phonealarm running in the background which most likely causes more juice to be sapped.
1.54.30.00 measure conditions - GSM on, BT on, display on, backlight off - 38mA
That was average after about 30min with the above settings
1.54.30.00 - 32mA
TNT's ROM after 10 min.
Bluetooth on, Back light off
1.54.30.10
GSM ROM 1.54.30.10
1) measure conditions - GSM on, BT on, display on, backlight off - avg. 37 mA, total 6mAh
2) measure conditions - GSM off, BT on, display on, backight off - avg. 26 mA, total 4 mAh
Maybe will be good to specify standard for measure conditions, because these description is uncartain and for true result it is neccessary. I don't understand to all causes of battery consumption, but it also depends on applications in RAM etc.?
GSM ROM 1.54.30.10
GSM/UMTS OFF
1) measure conditions - GSM off, BT on, display on, backlight on (40% brightness)- avg. 42 mA, total 7mAh
2) measure conditions - GSM off, BT on, display on, backight off - avg. mA, total mAh
GSM/UMTS ON
1) measure conditions - GSM on (UMTS 2100), BT on, display on, backight on (40% brightness) - avg. 54 mA, total 9 mAh
2) measure conditions - GSM on (UMTS 2100), BT on, display on, backight off - avg. 36mA, total 6mAh
*Test is still ongoing, flashing to 1.47.00.10 & post will be edited later on
mrvanx said:
Good idea.....everybody please give this a go.
1.48.00.10 - GSM 1800 - Average 34mA
1.48.00.10 - UMTS 2100 - Average 33mA (interesting)
Ideally we could use somebody flashing a naked ROM (such as pandora) and trying out each radio on both GSM and UMTS (3G). My tests have phonealarm running in the background which most likely causes more juice to be sapped.
Click to expand...
Click to collapse
I think you right - it would be best to have one peson run through the radio roms and record. Each person posting their results is somewhat apples to orages because battery consumption has a lot more variables then just sceen off - bluetooth on - i.e. differn't loads on the processor (might have program taxing the processor in the background) - distance from towers (somebody closer to the tower will use less power then somebody futher), etc. - even the weather can effect it. There are soo many variables that unless we have one person, using the same rom in the same place that will flash one radio, test and then move on to the next radio rom, it is unlikely that we will get an accurate representation of battery consumption per radio rom
If I have time i might begin a series of tests once ive flashed a 'naked' rom. Taking an old radio (no older than 1.27) as the baseline.
so whatever the consumption the rating for the baseline radio would be 1.00.
a consumption of 10% above would result in a score of 0.9......less power consumption shows a score of above 1.....higher scores are better obviously......everybody agree?
That sounds awesome. If you need any help let me know. It's a lot of work to take on. But you could complete a good series in a day if ya have the time. We would know which radio rom has best power consumption and then all we have to do is figure which one works for us in our area and be done with it.
Maybe Start a new thread?
Good luck.
Chris
mrvanx said:
If I have time i might begin a series of tests once ive flashed a 'naked' rom. Taking an old radio (no older than 1.27) as the baseline.
so whatever the consumption the rating for the baseline radio would be 1.00.
a consumption of 10% above would result in a score of 0.9......less power consumption shows a score of above 1.....higher scores are better obviously......everybody agree?
Click to expand...
Click to collapse
couldn't ask for more from u bro... my thanks in advance for your time..
mrvanx said:
If I have time i might begin a series of tests once ive flashed a 'naked' rom. Taking an old radio (no older than 1.27) as the baseline.
so whatever the consumption the rating for the baseline radio would be 1.00.
a consumption of 10% above would result in a score of 0.9......less power consumption shows a score of above 1.....higher scores are better obviously......everybody agree?
Click to expand...
Click to collapse
Mrvanx, you never cease to amaze me in your awesomeness
very productive...can't wait for the overall results!
Hello From Greece - Cosmote
Hello Guys and Happy New Year ,
I Have Made My Tests And the Results Are :
ROM 1.48.00.00
GSM
1) Measure Conditions - GSM On, BT on, display off, avg. 71 mA, total 2mAh
2) Measure Conditions - GSM off, BT on, display off avg. 65mA, total mAh
UMTS
1) Measure Conditions - UMTS on (UMTS 2100), BT on, display off, avg. 71 mA, total 3 mAh
2) Measure Conditions - UMTS off (UMTS 2100), BT on, display off, 66 mA, total 2mAh
That Are My Results As I Can See Big Consumtion but its the better radio here in greece in my opininion
Whats The better radion for battery life any suggention?
Waiting 4 Pm!!!
OK, does anybody have any test criteria for this??
Test 1: Radio on GSM mode, bluetooth off, nothing running except bare ROM & power meter.
Test 2: Radio on UMTS mode everything as test 1.
All tests an average over 10 mins. (as the original tests on this thread).
mrvanx said:
OK, does anybody have any test criteria for this??
Test 1: Radio on GSM mode, bluetooth off, nothing running except bare ROM & power meter.
Test 2: Radio on UMTS mode everything as test 1.
All tests an average over 10 mins. (as the original tests on this thread).
Click to expand...
Click to collapse
Seems good to me - maybe give it 2-3 minutes from when you think the phone has booted to ensure all startup tasks have completed so the phone should have the least possible processor load. Also, I would try to have the phone in as close to the same location as possible for each test (so it will be as close to the same distance from the same tower for each test)
I think it's probably a bit much to load field test to ensure you are connected to the same tower each time though :S
chymmylt said:
Seems good to me - maybe give it 2-3 minutes from when you think the phone has booted to ensure all startup tasks have completed so the phone should have the least possible processor load. Also, I would try to have the phone in as close to the same location as possible for each test (so it will be as close to the same distance from the same tower for each test)
I think it's probably a bit much to load field test to ensure you are connected to the same tower each time though :S
Click to expand...
Click to collapse
LOL too right.
The current tests im trying are:
Test 1 : 10 minutes of idle.......gsm only everything off and backlight off (not in standby). Nothing loaded except the power meter, no running tasks or today items.
Test 2 : as test 1 but with UMTS instead of gsm.
The results are showing up currently around between 10 and 20 mA.
Seems ive reduced the current being drawn by removing alot of processes and ofcourse the backlight. Any differences in the radios usage of the battery should show up clearer now.
EDIT:: have tested four radios, will come back on in the morning and report my findings.
EDIT 2:: See my new thread about this.
Thought of another thing that could affect results - if you have the SD card in or out. I assume you've already begun so just be sure that all test are preformed the same - if you haven't already begun - to get a more accurate measure I'd go w/o the card.
mrvanx, this could be great and useful..
If I might suggest the testing procedures.. it could take a lot of time to test everything, but would be a great comparison..
1.) GSM vs UMTS standby
2.) "Idle vs load" stress test on the processor/s ( spb benchmark, playing movie, ect.. )
3.) GSM vs UMTS back surfing the internet
4.) Wireless, bluetooth connections tests, ect.
It will give us better picture on the battery performance with different radios along with battery consumption while using the device in heavy usage conditions
What is necessary to detect the correct battery consumption?
Something like this: http://www.vandenmuyzenberg.nl/PowerGuard/ ???
Should I use this tool?
hungry
my phone is hungry comsumation
average = 283 mAh
any sugestions to reduce ?.....
I have access to a VZW JetPack (which is a Netgear AirCard in drag) and am looking at that as the ideal solution for the Joying I just ordered. Especially since it has ports for external antennae, I can hard wire it to the car and wire the antennae wherever I want.
However, the sleep mode has me wondering. I have the option to disable sleep mode, but I don't know if the thing's battery will last the night, defeating the purpose.
Anybody used one of these in an automated way?
I'm currently using a Straight Talk ZTE hotspot, which is a similar unit I think. I have updated settings on the unit for lower battery usage modes when active, such as using the shorter wifi range, etc. I leave the unit connected to ACC power so it charges whenever I'm driving. In sleep mode, unit has been able to stay on for up to 24 hours with very little battery drain. Battery is usually fully charged with minimal driving throughout the day. So far, so good.