I'd like to start a standardized battery testing procedure and share the results here. Please provide suggestions or improvements if you think of any.
1. Install ROM with full wipe
2. Setup google account (first use setup) from SIM/cell data connection
3. Charge phone to full
4. Enable WiFi, BT, NFC (if available), GPS
5. Disable automatic screen brightness and set to maximum brightness, forget all WiFi networks
6. Open Maps (install if not included)
7. Select Navigate, select Maps (starts navigator with no destination)
8. Unplug device from power
9. Wait hours for device to die
10. Plug device in to fully charge
11. Turn device on, immediately go to Battery stats and snap screenshot
12. Post device, ROM, and screenshot for everyone's amusement
My first few tests are from HD2 and N1 with CM7, and Sensation with MIUI and CM9
HD2 w/ CM7 - 3h 13m
N1 w/ CM7 - 4h 50m
Sensation w/ CM9 - 3h 34m
Sensation w/ MIUI - 2h 26m
myTouch 4G Slide w/ stock - 4h 4m
myTouch 4G Slide with CM9 alpha5 - 3 hours 54 minutes
Cm9 op
Sent from my SGH-T989 with Cyanogenmod 9 Nightly Power.
HTC Amaze w/ stock ICS - 1h 54m
reukiodo said:
4. Enable WiFi, BT, NFC (if available), GPS
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Click to collapse
Are you connected to a WiFi network the entire time? Because searching for WiFi networks causes a bigger battery drain for me than being connected to one.
Max4000 said:
Are you connected to a WiFi network the entire time? Because searching for WiFi networks causes a bigger battery drain for me than being connected to one.
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Click to collapse
Good point. I'll make it a standard on future tests to not connect to forget all APs before testing. Does the same apply for Bluetooth dis/connected and cellular network connected/disconnect?
I would think that the cell connection uses less power when there is no SIM card, but it still has the ability to connect to make emergency calls. My guess is that the cell connection would draw more power from a WiMAX/HSPA/LTE connection than no connection (or emergency call connection).
Amaze w/ ARHD 3 - 3h 13m
HD2 w/ cm9 rc2 - 2h 36m
Related
htc hd2 -
Q 1: anyone how much less standbytime u get when WiFi is ON than not?
Q 2: What uses most battery - 3G on , WiFi or bluetooth?
-Sjonkel
Hi, I'm new to android, but tech aware. Not sure if this is android or Sensation (I'm on XE with thanks to Mike1986).
I use WiFi a lot, but also wander. I tend to forget to turn off the WiFi when I leave work/home/pub - not top of my list!
Whilst I'm wandering I often try to look something up, when WiFi's scanning, and wait for ages.
Shouldn't the 'system' failover to phone data access if WiFi is not connected - or at least ask me for an action?
As I say, I'm new to this - apologies.
Thanks
yes, it should fail over to data if it is not connected to WIFI.
Correct. If you have wifi enabled, leave the area like to work that has no wifi, then yes mobile network takes over.
But I go one above and use Llama location profiles. Where depending where are based on the conditions you set, you can trigger actions using this app. The app is free in the market and is an invaluable tool for me when I am leaving work, heading to the car with my bt and gets connected because I set my condition to look for a bt device if I am no longer connected to my wifi at work.
Gotta love Android
Hmmm. That's not the behaviour I'm seeing. Just thought it was an irritation. Should failover be auto or is there settings (or apps) to control it? I like the concept of profiles ... But you've got to be more organised than I!
nightjar56 said:
Hmmm. That's not the behaviour I'm seeing. Just thought it was an irritation. Should failover be auto or is there settings (or apps) to control it? I like the concept of profiles ... But you've got to be more organised than I!
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Click to collapse
It's auto. Like my n1, whenever I am in range of a known wifi connection, the wifi will auto connect if wifi was left on from the prior location or out of range and back again, if that makes sense lol...
So if you go out and are out of wifi range, and you manually turn off wifi, then no wifi won't auto connect of course.
Yes, that all works fine - when I'm wandering in and out of wifi zones. My gripe/question is :
When I am out of wifi range, and wifi is on (scanning), should the phone fall back to the phone data connection? The behaviour I see is that connecting just hangs until I turn wifi off.
Thanks
Hi, what is difference in battery consumption between
- wifi on & connected to network (no or low network activity on background)
- wifi on & disconnected (so it constantly searches for wifi networks)
- wifi off ( its exactly 0.0 mW ? )
(I want to configure wifi sleep policy / llama app to save battery)
And when I was charging, android shown 100% battery, after I removed cable it was only 97%. Or after phone startup it shows 10% more battery as I had before turning off phone.
Can I calibrate battery if I dont have root? (4.2.2 stock S4 mini)
spixy said:
Hi, what is difference in battery consumption between
- wifi on & connected to network (no or low network activity on background)
- wifi on & disconnected (so it constantly searches for wifi networks)
- wifi off ( its exactly 0.0 mW ? )
(I want to configure wifi sleep policy / llama app to save battery)
And when I was charging, android shown 100% battery, after I removed cable it was only 97%. Or after phone startup it shows 10% more battery as I had before turning off phone.
Can I calibrate battery if I dont have root? (4.2.2 stock S4 mini)
Click to expand...
Click to collapse
yes you can calibrate battery without rooted access. :good:
spixy said:
Hi, what is difference in battery consumption between
- wifi on & connected to network (no or low network activity on background)
- wifi on & disconnected (so it constantly searches for wifi networks)
- wifi off ( its exactly 0.0 mW ? )
(I want to configure wifi sleep policy / llama app to save battery)
And when I was charging, android shown 100% battery, after I removed cable it was only 97%. Or after phone startup it shows 10% more battery as I had before turning off phone.
Can I calibrate battery if I dont have root? (4.2.2 stock S4 mini)
Click to expand...
Click to collapse
Yeah just using your device by gaming or anything until it dont have power and turn off by 0% of your baterry..
Then plug your charger without turn on your device.
Wait until 100% unplug then turn on. Bateray stat will on 99% or lower.. then turn off your device then charg again until 100% and let it overcharge about 15-30 minuts.. unplug an turn on. Should your device calibrated now. If itsnt yet. Just reapeat the first step until 3times. If nothing change. Just root and calibrated with simple way
Sent from my SM-T211 using Tapatalk 2
I've been seeing mixed reports on battery life with keeping your wifi always on. Some say keeping it always on extended their battery life.
What do you have it set as? And how has it affected your battery life?
cakalusa said:
I've been seeing mixed reports on battery life with keeping your wifi always on. Some say keeping it always on extended their battery life.
What do you have it set as? And how has it affected your battery life?
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Click to collapse
I keep always on but it does the opposite
I always have WIFI and bluetooth on. Take it off the charger in the morning and battery is usually 70+% at end of day.
GPS off. cellular data off (i use a prepaid voice-only service).
Wifi Sleep Policy is 'Always On', but I use an automation app (MacroDroid) to actually enable/disable wifi when I'm in/out of range of trusted SSIDs (using CellID triggers).
With autosync on and locations services set to battery saving with wifi scanning when disabled off I get the following results.
Wifi enabled connected to SSID (3G data is on but Android automatically prefers Wifi) - standby drain circa 1% per hour.
Wifi disabled (as no trusted SSID in range), 3G data on - standby drain 1 to 4% per hour (depending on network strength)
On 3G data with Wifi enabled but not connected to a SSID - standby battery drain 2 to 6% per hour.
neu - smurph said:
Wifi Sleep Policy is 'Always On', but I use an automation app (MacroDroid) to actually enable/disable wifi when I'm in/out of range of trusted SSIDs (using CellID triggers).
With autosync on and locations services set to battery saving with wifi scanning when disabled off I get the following results.
Wifi enabled connected to SSID (3G data is on but Android automatically prefers Wifi) - standby drain circa 1% per hour.
Wifi disabled (as no trusted SSID in range), 3G data on - standby drain 1 to 4% per hour (depending on network strength)
On 3G data with Wifi enabled but not connected to a SSID - standby battery drain 2 to 6% per hour.
Click to expand...
Click to collapse
That's some good info and data. Thanks!:good:
I have a few apps that I need to be connected to the internet/data overnight and was wondering which would consume less battery power when the phone is idle. These apps are excluded from all restrictions and battery optimizations in Oxygen OS.
Currently I have it setup that wifi goes off when the screen is off and the apps I keep running overnight are connected to 4g/lte. This drains about 10~12% battery overnight.
Would it be better to keep these apps connected to wifi instead of 4g/lte? Do you think that would consume less power? I always thought keeping wifi on/connected to my home router all the time drains the battery faster than 4g/lte.
Any thoughts?
Wi-Fi is supposed to consume less power than data; makes sense since the phone doesn't need to use its antennas for 4G..
WiFi consumes less battery.
You should turn off that setting so WiFi stays on while the screen is off and you'll save battery.
Another vote for WiFi consuming less battery. Think about it: the WiFi signal just has to travel 50 feet or so to your WiFi router, versus cell data signal, which has to travel maybe a mile or more (depending on the location of the nearest cell tower - but you get the point). Or meters versus kilometers, if you deal in metric.
Pushing a signal a longer distance equals more power consumed.
WiFi vs. lte
With respect, I'm not sure and would like enlightenment.
If I turn off my wifi and set my phone to lte, then I'm turning off the power that goes to the wifi/antenna sub-system.
If I turn on wifi, my phone powers that, but still powers the lte connectivity to my cell carrier for phone calls and SMS messaging. Also, wifi -- while superfast -- constantly scans (and uses power) to look for a better wifi connection.
I haven't tested it for power consumption, but I usually turn off wifi when I go to sleep and I also turn off "mobile data." I don't need my Google and other data synchronized until I wake. I would turn the entire phone off to let it charge at a minimum temperature, but I like to keep it on overnight in case a close friend, relative or clients gets arrested.