Let's say all things equal, which would drain the phone battery the most - being on WiFi or on LTE?
I know on older phones LTE round drain the battery like I drain a glass of beer, but I'd imagine the chips are much more efficient now than they were back then. Is one more battery efficient than the other?
Phones are still designed to use WiFi if possible when both WiFi and data are available and this behavior is independent of any data saver settings you might use so it's a pretty safe bet that 4G still uses more power.
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If I have both Wifi and EvDO data available, which is better on the battery life?
I'd guess that strong connections for either use less battery life?
Hands down it's Wi-Fi, nearly every time.
lexluthor said:
If I have both Wifi and EvDO data available, which is better on the battery life?
I'd guess that strong connections for either use less battery life?
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EVDO ought to be much easier on the battery, especially if you are not using the link constantly and are allowing it to become dormant when not in use.
Setting the WiFi adapter to run in power save mode instead of maximum throughput mode will significantly improve power consumption with respect to 802.11, but I'd imagine that unless you are spending way much more time with the device active due to download times being much longer for very large transfers, EVDO will continue to be more power efficient.
Wifi will give you about 25% better battery life for the same transfer time. From what I have seen EVDO draws about 400-500 mA, WiFi 275-325 mA.
3 days in w/ my TBolt and VZW announces the Incredible 2 yesterday, releasing at the end of the month ...
Rumor has it that battery life will be much better than the TBolt, so is anyone returning their phone right now due to battery life or will there be an improvement once new ROMs are released? Is it worth the wait?
maybe it probably will never get any better. i would seriously maybe probably consider thinking about debating on planning on returning your phone.
i dont know what htc/verizon was thinking when they released this. i mean technology like this and i have to charge every day!! unbelievable!
i probably think inc 2 will maybe be better since its a 3g phone.
Read one of the 100 other battery threads.
BoyBlunder99 said:
3 days in w/ my TBolt and VZW announces the Incredible 2 yesterday, releasing at the end of the month ...
Rumor has it that battery life will be much better than the TBolt, so is anyone returning their phone right now due to battery life or will there be an improvement once new ROMs are released? Is it worth the wait?
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I like the TBolt... And not waiting on a rumor for the Dinc 2
Last I checked, the Dinc2 is a 3G-only device.
I haven't had any trouble with my Thunderbolt's battery life easily getting through a 8hr work day with plenty left over.
I'd say it's an almost certainty. There seems to be a problem/bug with the radio which makes it drain a lot of power in certain areas (my house seems relatively fine, but in town it's not ... maybe certain towers for some reason? No 4g in my area, so that's not it) when you have mobile data enabled. I'm currently at 78% battery with 13h 30m on the clock ... by turning off mobile data in the areas I've discovered where it decides to draw the obscene ~900mA (or some other fairly constant, very high number) when I encounter the "bug", I've managed to essentially make the battery life as long as anyone could expect.
For some reason, the radio will not admit to drawing practically 90% of your battery in the battery use menu.
So, I'm thinking future radio software/firmware updates can drastically improve battery life if they discover the cause.
Currently, without the area with the bug (I'm at my house) and screen off, I'm drawing 42-60mA on 3g radio and 40mA wifi. And areas with the bug, it's 700mA minimum with spikes often at 900mA and above.
Seriously, how long would you expect a laptop battery to last? These new smartphone are basically mini laptops. I'd be lucky to get 4 hours out of my laptop. My phone will make through the day with moderate use.
Just my 2 cents
Sent from my ADR6400L using XDA App
unremarked said:
I haven't had any trouble with my Thunderbolt's battery life easily getting through a 8hr work day with plenty left over.
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Same here..
Bought a spare stock battery on launch day expecting the worst, but have yet to have to use it. I make it through the day with good use no problem. Today was even better after loading das BAMF 1.3 ROM w/ kernel, overclocked to 1.2GHz as well..
Mine has gotten better over time. Im sure with the next couple updates the battery life will get better. But if you dont care about lte or the bigger screen you might just want to get the incredible 2.
My battery has gotten better over the past week. It's tolerable now. It will make it through a day, which is all I really need.
It's never going to get good battery life though.. there's a lot of stuff packed into this phone and on top of that, the 1400 mah battery is already small for a device like this.
Zshazz said:
I'd say it's an almost certainty. There seems to be a problem/bug with the radio which makes it drain a lot of power in certain areas (my house seems relatively fine, but in town it's not ... maybe certain towers for some reason? No 4g in my area, so that's not it) when you have mobile data enabled. I'm currently at 78% battery with 13h 30m on the clock ... by turning off mobile data in the areas I've discovered where it decides to draw the obscene ~900mA (or some other fairly constant, very high number) when I encounter the "bug", I've managed to essentially make the battery life as long as anyone could expect.
For some reason, the radio will not admit to drawing practically 90% of your battery in the battery use menu.
So, I'm thinking future radio software/firmware updates can drastically improve battery life if they discover the cause.
Currently, without the area with the bug (I'm at my house) and screen off, I'm drawing 42-60mA on 3g radio and 40mA wifi. And areas with the bug, it's 700mA minimum with spikes often at 900mA and above.
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Last night I unplugged my phone at 430am. Went back to sleep woke up about 730 and battery was at 45% with WIFI on. Don't know what's going on. Some nights 8 hours with 4G on my phone won't even burn 10%. The WIFI thing is puzzling to me.
Can't say for certain, but I've heard gingerbread significantly improves battery life in most phones...
and rumour is, we will get gingerbread official in Q2. (unofficial via cm7 maybe sooner???)
I am considering switching from the charge to the tbolt. is the 4G radio the main drain on the battery? 4G is not available where I live, so I am wondering if I could get away with the stock battery until it is available in my area. Could I get battery life at least comparable to the DX until it is?
Unless I'm on business, I'm presently in an 3G-exclusive area, and with CM7 my battery drain is 50% cell standby. That said, on BAMF 1.6.3 (Froyo) I didn't experience this much cell standby drain. To be sure, 4G does draw a fair amount of current, especially if the signal is weak.
Not that I can tell. From everything I'm seeing its the half acre of glass on the front of the thing that sucks the battery dry. 4G signal strength shouldn't have any effect at all on the battery because it doesn't use code division multiple access technology which requires the signals from all devices on that tower to have signal strength reaching the tower to be equal. Instead, it requires an advance be built into the signal transmission so that the phone addresses the tower within its time slot. This has no effect on battery drain at all. What will still drain the battery in 4G areas is the connection needed for voice and text, which still uses cdma, if my understanding is correct.
nerozehl said:
Unless I'm on business, I'm presently in an 3G-exclusive area, and with CM7 my battery drain is 50% cell standby. That said, on BAMF 1.6.3 (Froyo) I didn't experience this much cell standby drain. To be sure, 4G does draw a fair amount of current, especially if the signal is weak.
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I completely agree. If your 4g signal is somewhat weak, your battery will drain fairly quick. You might also notice your battery getting up to 103 degrees Fahrenheit because it keeps trying to get that weak 4g signal.
You could always change it to CDMA prl. That will save your battery and prevent it from drawing current to get a weak 4g signal.
as title says, which ROM for HTC Touch Diamond 2 has the best battery life?
energy with titanium or simple today screen
The ROM will help ~50% of your battery life need, but rest is depends on your kind of usage. Like what kind of network you are using and kind of signal strength you are in, kind of application that you use, your device backlight, WiFi and Bluetooth etc adds to that rest 50%.
Also I am not sure how one ROM will be different from other in 1st 50%, but I feel Photon ROM is good for me.
You may also consider testing different ROMs so that you can confirm as per your usage
well, less eyescandy and function/background service usually mean better battery. The most power hungry component in our phone is the screen and radio (radio include those 2G/3G and wifi).
So, choose a rom running titanium (winmo 6.5 default), mess around with the backlight settings, and choose the right radio mode to meet your Internet usage. If you transfer data heavily over mobile network, choose 3G when available, else 2G/GPRS network will do the job. On my testing, for a same amount of data (i.e. 5MB), transfer using 3G consume less power than 2G. Wifi is more power hungry compare to 2G/3G on my experience.
for the measuring the actual currant of the battery, you can use the software BattClock. This tool helps me a lot with the power consumption controlling. Also can show many other informations like freeRam or CPU usage.
It has been documented that using wifi when at home (for example) can conserve battery, however in most cases there is a stable GSM signal. For this reason the phone will not waste a lot of battery trying to connect to the cellular network over and over again. However, I have an unusual situation that I would like advice on. My office has TERRIBLE reception and in fact I constantly lose/regain signal all day long. I believe this contributes to relatively low battery life on my phone(s) that I use. We do have office wifi however, and I am wondering how connecting to it will impact my battery. Would that improve the battery drain, or would it actually make it worse?