Which one uses less battery?
kharnage said:
Which one uses less battery?
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both are using battery constantly listening for new events. actually SyncSMS is most efficient since it uses Push Notifications to tell the other device when it should sync a new message
Are you referring to tethering? bluetooth uses less battery but i believe wifi is stronger
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Bump this. Anymore opinions?
I would say Bluetooth, Wifi always drains my arc a lot quicker than Bluetooth does, when it's connected.
Just look at tethering, bluetooth uses a lot less power than wifi does
Related
just curious, has anybody use this as a primary phoneentirely replacing your smartphone? (to make phonecall, sms etc)
considering using a bluetooth headset means that the bluetooth on the tab needs to be on all the time?
how about the battery life from the experience? can it last a day like a normal smaller smartphone?
considering this to be my primary (dont mind if its dorky ^^)
originally prefer desire hd or hd7 but i did have a "big phone" fetish and suddenly this tab comes into consideration lol
also desire hd has a struggle on battery life too, if this 4400mah is better than desire hd, then why not?
thanks before
The tab is great as a phone if you carry a bag with you.
It will fit in your pocket but it will stick out.
I use it as day to day phone but certainly not a phone i would use when going out to bar for example.
I have a BT HBH-DS980 and i like this model because it is not around my ear all day long and has a good range with a small caller ID screen.
It works great with the Tab. sound quality is good.
As for battery life, as a heavy use i get about 1.5 days of moderate to heavy use.
To sum it up, it is a phone for day to day (going to the office etc..) but it is not a phone for every occasion.
1.5 day huh, nice ^^
at least its not struggling with 1230mah desire hd had and for some who can't even reach a full day use
using the hbh-ds980, do you need to turn the bluetooth on all the time on the tab, or you can just activate it via hbh just when you want to answer call?
the thing is if you want to make call, then sure, fired up the bluetooth and make calls
but when you receiving, is it too much hassle to turn on bluetooth 1st on the device and then the hbh?
fyi, never need to use bluetooth headset before, so im a full fledged newbie on this thing
is the 1.5 day use with bluetooth on all the time? (thinking logically that bluetooth will eat up battery, would be amazed if its on all time and you get 1.5 day)
I assume you are using the Tab with AT&T. Do you have good reception with 3G? Since it only has the 1900 band.
Justin^Tan said:
1.5 day huh, nice ^^
at least its not struggling with 1230mah desire hd had and for some who can't even reach a full day use
using the hbh-ds980, do you need to turn the bluetooth on all the time on the tab, or you can just activate it via hbh just when you want to answer call?
the thing is if you want to make call, then sure, fired up the bluetooth and make calls
but when you receiving, is it too much hassle to turn on bluetooth 1st on the device and then the hbh?
fyi, never need to use bluetooth headset before, so im a full fledged newbie on this thing
is the 1.5 day use with bluetooth on all the time? (thinking logically that bluetooth will eat up battery, would be amazed if its on all time and you get 1.5 day)
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I leave BT on all the time.
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shinji21 said:
I assume you are using the Tab with AT&T. Do you have good reception with 3G? Since it only has the 1900 band.
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My area is mainly 1900mhz so the reception is just fine.
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Leaving WIFI enabled appears to have little impact on battery life.
I have an old Motorola Cliq at my house that I charged fully, enabled WIFI, and left on my dresser for a period of time. It was NOT configured to connect to a wifi network, and often displayed a wifi notification of an open access point.
The fully-charged CLIQ managed nearly thirteen days before refusing to power on.
The additional load of enabling WIFI appears to be somewhere near 8% a day in this limited test.
Well, this is all well and good, but a cliq ain't a G2...
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tronmech said:
Well, this is all well and good, but a cliq ain't a G2...
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QFT..........
Funny, I don't remember saying it WAS a G2.
Anyway, g2 results coming in a week or so.
Sent from my HTC Vision using XDA App
WIFI will actually SAVE battery power (assuming it is connected). An easy way to take advantage of this through the Y5 program that will automatically turn on/off your WIFI based on previously remembered networks. It was free last I checked.
WIFI is less battery intensive then a 3G connection.
I have HTC Touch HD2 with wonderful internet and voice rate. But I cannot connect Samsung Galaxy Tab to cellphone via bluetooth to get internet from HTC HD2.
Is there any solution (as it was made with archos tablet)?
This article sheds some light that it possible. But how to get PAN and DUN bluetooth profiles from archos firmware?
I made adhoc WiFi available according to this guidance.
But WiFi consumes a lot of power.
ZeroPDA said:
I have HTC Touch HD2 with wonderful internet and voice rate. But I cannot connect Samsung Galaxy Tab to cellphone via bluetooth to get internet from HTC HD2.
Is there any solution (as it was made with archos tablet)?
This article sheds some light that it possible. But how to get PAN and DUN bluetooth profiles from archos firmware?
I made adhoc WiFi available according to this guidance.
But WiFi consumes a lot of power.
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Do you really think Wifi will consume much less power than Bluetooth ?
Yes. I absoluteley sure. I saw a table of comparison of power consumption.
ZeroPDA said:
Yes. I absoluteley sure. I saw a table of comparison of power consumption.
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OK I guess it doesnt ahve the same range of action, that would explain why. What about the bandwith ?
Alcibiade said:
OK I guess it doesnt ahve the same range of action, that would explain why. What about the bandwith ?
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The point is more options never hurt. When i had a Nokia N800/N810 and a 12" PowerBook i used to tether them to my Treo via bluetooth 'cause it consumed less power than using WiFi to tether on both ends. Now this was years ago and even on an NYC bus going 30 - 40 mph streaming internet radio and general web browsing it was just fine.
Range is not a concern, how far am i from my phone that is in my pocket/bag/shirt and besides bluetooth has a range of about 10 meters (~30 feet).
I have an Epic 4G and just decided to get a 3500mah battery on eBay. Dang thing lasts 2 days with regular use, and with the wpa_supplicant mod to my tab for ad-hoc, i'm golden for hours of wifi tethering.
LordLugard said:
The point is more options never hurt. When i had a Nokia N800/N810 and a 12" PowerBook i used to tether them to my Treo via bluetooth 'cause it consumed less power than using WiFi to tether on both ends. Now this was years ago and even on an NYC bus going 30 - 40 mph streaming internet radio and general web browsing it was just fine.
Range is not a concern, how far am i from my phone that is in my pocket/bag/shirt and besides bluetooth has a range of about 10 meters (~30 feet).
I have an Epic 4G and just decided to get a 3500mah battery on eBay. Dang thing lasts 2 days with regular use, and with the wpa_supplicant mod to my tab for ad-hoc, i'm golden for hours of wifi tethering.
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I agree the range wont be an issue. I was thinking about doing the same as you and held off because of power consumption (It's already borderline on modern phones, so can't imagine what will happen if Wifi is sucking the juice out of the device)
That said you may be better considering the Playbook from Blackberry. It seems it is exactly what they plan to do and you can probably trust them in terms of optimization of power consumption
OK so I have read different way to save battery power on rooted nexus s but don't know what is best. I am currently using setcpu but can not tell a difference. If anyone has another way please share in great detail because I am new to rooted phones.
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Turning off the mobile data connection will make an enormous difference you won't believe it.
Second is use WiFi when available, it will save tons of battery.
Why does there always have to be a funny guy.
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He's not joking. That IS how you do it.
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Man Im sorry dude read that wrong. I thought he said turn phone off LOL......
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Not so sure about the wifi part. I've compared the phone idling on 3G vs. idling on wifi and with wifi there's definitely more power draw. Confirmed it with System Panel, the CPU is pegged at around 10% usage while idling with wifi vs. about 1% when idling on 3G.
This has been consistent with all my other android phones too (Nexus One, Vibrant, MT4G)
B3arfruit said:
OK so I have read different way to save battery power on rooted nexus s but don't know what is best. I am currently using setcpu but can not tell a difference. If anyone has another way please share in great detail because I am new to rooted phones.
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can please post what your setcpu settings are? thx dude!
dinan said:
Not so sure about the wifi part. I've compared the phone idling on 3G vs. idling on wifi and with wifi there's definitely more power draw. Confirmed it with System Panel, the CPU is pegged at around 10% usage while idling with wifi vs. about 1% when idling on 3G.
This has been consistent with all my other android phones too (Nexus One, Vibrant, MT4G)
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You're right, wifi uses more power than 3G, and they both use more power than 2G. When idling I'd definitely want to sit on 2G if anything. When you actually need an internet connection though, wifi and 3G will be more efficient. They'll use more power but will download much faster to make up for it.
Saving power is the same for almost all android devices:
1) turn off mobile network when not in use
2) turn off wifi when not in use
3) turn off gps
4) turn off automatic syns( if you dont use them)
5) brightness set to low
6) turn off live wallpapers
7) use a black wallpaper
8) turn off haptic feedbacks
9) set screen time out to a smaller interval.
all these steps might help you but it kind of takes away the charm of the phone imho.
dinan said:
Not so sure about the wifi part. I've compared the phone idling on 3G vs. idling on wifi and with wifi there's definitely more power draw. Confirmed it with System Panel, the CPU is pegged at around 10% usage while idling with wifi vs. about 1% when idling on 3G.
This has been consistent with all my other android phones too (Nexus One, Vibrant, MT4G)
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Click to collapse
It's definitely the opposite of that, its counter intuitive but WiFi uses significantly less battery life over 3g. I can post some numbers when I get home tonight if anyone's interested. But a good test is leave your phone on WiFi all night, then repeat on 3g and see the enormous difference. Better yet just look at the official Google specs, web browsing time is always higher on WiFi.
I did some real nice graphing of current draw at 2 second sample rate comparing various tasks which is What I'll try to post later..
What's the best rom for battery life?
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robstunner said:
What's the best rom for battery life?
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Bionix 1.2 @ stock speed, not the OC-ed version
it's stable, fast, and battery good
i have my data on all the time sync-ing every 30min
and 1 battery can last me a full day without plugging it in
Wifi automatically sleeps if your phone is idle for so long, therefore saving battery. 3g absolutely kills my battery so I have mobile data disabled when not using it. Works well for me. Also screen brightness on 0% using an app works good.
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deeren said:
Saving power is the same for almost all android devices:
1) turn off mobile network when not in use
2) turn off wifi when not in use
3) turn off gps
4) turn off automatic syns( if you dont use them)
5) brightness set to low
6) turn off live wallpapers
7) use a black wallpaper
8) turn off haptic feedbacks
9) set screen time out to a smaller interval.
all these steps might help you but it kind of takes away the charm of the phone imho.
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Click to collapse
I agree!!!!!!
AllGamer said:
Bionix 1.2 @ stock speed, not the OC-ed version
it's stable, fast, and battery good
i have my data on all the time sync-ing every 30min
and 1 battery can last me a full day without plugging it in
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Click to collapse
Should you use setcpu with this rom? Or is it better without it
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B3arfruit said:
Should you use setcpu with this rom? Or is it better without it
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i tried with and without setCPU, and the difference in power saving was marginal
so i removed it.
it probably gave me an extra hour, but there is a bug with setCPU when picking up calls, it gets staticky until the CPU is at 800 Mhz or more
so with all that i mind, i decided to remove it
leerobson99 said:
Wifi automatically sleeps if your phone is idle for so long, therefore saving battery. 3g absolutely kills my battery so I have mobile data disabled when not using it. Works well for me. Also screen brightness on 0% using an app works good.
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True, change the WiFi sleep policy to "never" to avoid this and extra battery savings.
I've been getting the best with CM7 so far, but I think all the roms that are about the same as long as you don't overclock them.
Use a black static wallpaper, low brightness, and get the black-themed MMS and Gmail apps from the Themes/Applications forum.
I can get well through my work day. Usually have 2+ hours of display time on and about 16 hours off the charger by the time I plug in at night with still 20-30% left. Depends on my reception in the day as well, which is pretty bad at work, so I think I'd have 30-35% if my reception at work was good.
deeren said:
Saving power is the same for almost all android devices:
1) turn off mobile network when not in use
2) turn off wifi when not in use
3) turn off gps
4) turn off automatic syns( if you dont use them)
5) brightness set to low
6) turn off live wallpapers
7) use a black wallpaper
8) turn off haptic feedbacks
9) set screen time out to a smaller interval.
all these steps might help you but it kind of takes away the charm of the phone imho.
Click to expand...
Click to collapse
Agreed on all points except for GPS. Since it's an on-demand service, leaving it on makes little to no impact on battery life. The phone only utilizes the GPS connection when an app calls for it and saves you the time of having to toggle it every time you need it. Just leave it on.
RogerPodacter said:
It's definitely the opposite of that, its counter intuitive but WiFi uses significantly less battery life over 3g. I can post some numbers when I get home tonight if anyone's interested. But a good test is leave your phone on WiFi all night, then repeat on 3g and see the enormous difference. Better yet just look at the official Google specs, web browsing time is always higher on WiFi.
I did some real nice graphing of current draw at 2 second sample rate comparing various tasks which is What I'll try to post later..
Click to expand...
Click to collapse
An active WiFi connection uses a lot less than an active 3g connection because the connection already exists and the data transfers faster.
An idle 3g connection uses significantly less energy than an idle WiFi connection. If you aren't using or connected to WiFi, turn it off. Set the WiFi sleep mode to sleep when the screen is off.
Which is more efficient?
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my thought would be neither: USB tethering i (guess) would be better for battery life, but would like to know for sure - wifi and bluetooth just seem to scream 'battery eater' on the phone, and i have a tethering plan and want to get the most out of it. bluetooth may use less juice than wifi but connection may not be as good.
anyone know if its possible to USB tether from android phone to NEXUS 7 ? or if its worth pursuing??
bkmaracas said:
my thought would be neither: USB tethering i (guess) would be better for battery life, but would like to know for sure - wifi and bluetooth just seem to scream 'battery eater' on the phone, and i have a tethering plan and want to get the most out of it. bluetooth may use less juice than wifi but connection may not be as good.
anyone know if its possible to USB tether from android phone to NEXUS 7 ? or if its worth pursuing??
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I tether from my galaxy nexus to my n7 on and off throughout the day it works perfect for me. My phone is running the vicious jellybean v1 ROM with tethering built in
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Via Bluetooth you save battery life but you get slower speeds and can only connect to one device... via WiFi battery drains more but speeds are faster and you can connect to more than 5 devices depending on the mobile hotspot.
Sent from my Nexus 7
speedtest on my phone shows 3.6mbps and while tethered via BT, the N7's speedtest shows 1.6mbps for DL
Although BT consumes less power than WiFi generally ( this may not be true in the future) WiFi speeds are faster than BT s you are "on the air" for a shorter amount of time thereby potentially consuming less power. It depends on the chip set used and the implementation.
Battery life on the Nexus should be your least concern so WIFI all the way especially if you're streaming videos. Nexus 7 is perfect WIFI tether companion for my HTC Thunderbolt on LTE.
ive been using foxfi with pdanet on bluetooth and it really saves on the battery!!
Well more concerned with the battery of the device I was using the tether with, my Galaxy Nexus.
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