[Q] KitKat/lollipop/gingerbread Battery - Nexus 5 Q&A, Help & Troubleshooting

How come my old HTC desire HD phone running gingerbread gets better battery life on airplane mode than my Nexus 5 running KITkat on airplane mode ? Is that normal ?

michaelopolis said:
How come my old HTC desire HD phone running gingerbread gets better battery life on airplane mode than my Nexus 5 running KITkat on airplane mode ? Is that normal ?
Click to expand...
Click to collapse
Well, it depends what you call "better battery life". How much time did you get on both phones ?
This said, you're not in the good section, you should have asked this in Q&A

Because it's a 1ghz single core phone?
Sent from my Nexus 5 using Tapatalk

Ben36 said:
Because it's a 1ghz single core phone?
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
Better yet, because the N5 has a huge screen?
Sent from my Nexus 5 using Tapatalk

michaelopolis said:
How come my old HTC desire HD phone running gingerbread gets better battery life on airplane mode than my Nexus 5 running KITkat on airplane mode ? Is that normal ?
Click to expand...
Click to collapse
My guide to checking which phone uses more battery than the others :
- CPU cores / threads, how much core does both phone have ? Lesser the core, lesser battery consumption. Add a point for every cores the phone have.
- CPU frequency / clock, does both phone clocks in at the same frequency ? Lesser the frequency, lesser the battery consumption. Add a point per GHz, so 1 GHz is equal as one point.
- GPU clock, does both phone have equal clock / frequency ? Lesser the frequency, lesser the battery consumption. Add a two point if the phone have superior GPU frequency.
- Screen (overall screen size), does both phone have an equal screen size ? Although this doesn't matter much, add a point if the phone have a larger screen.
- Screen, does both phone have an equal resolution ? If so, does the screen have an equal screen size ? If both points are true, smaller the screen and resolution, the lesser the battery consumption. This is one primary factor of battery drain. Add four points if a phone have a resolution more than HD (1280 x 720p), and two points if it's lesser than that.
- Device sensors, does one phone have a sensor and the other don't ? Add a point for every sensor you found, use a sensor detector app to check this.
- Operating system, does one phone have a superior operating system version ? Add a point if a phone have a superior OS version.
Sum all of those value, and compare it. The lesser the value, means the phone is either worse in terms of features, it performs worse than the others, but good thing it has a better battery !
Larger the value means the phone is full of features, and have a powerful pack of hardware, able to push more pixels. This at the cost of battery life.

Related

Stock Battery has issues!! [READ]

Ok, so i did a lot of research on HTC Sensation battery, and turns out its not an environment friendly battery. Infact if you've noticed, our phones heat up a lot and SUCK the hell outta the battery. HTC has to do something about Sense taking up so much RAM and memory.
Thanks
I agree 100%. Replacement of a diff one would be nice.
Sent from my HTC Sensation 4G using XDA App
CalCi059 said:
Ok, so i did a lot of research on HTC Sensation battery, and turns out its not an environment friendly battery. Infact if you've noticed, our phones heat up a lot and SUCK the hell outta the battery. HTC has to do something about Sense taking up so much RAM and memory.
Thanks
Click to expand...
Click to collapse
RAM and memory are the same in the context you used. And what does RAM usage have to do with the performance of the stock battery? NOTHING. RAM being used does not drain the battery faster. In fact, I want my RAM to be used, not just sitting there doing nothing. As long as whatever is using the RAM releases it when I need it for something else (sense does) I'm happy.
Sent from my HTC Sensation Z710e using xda premium
Ya, I'm not too sure what the extensive research has revealed...the OP doesn't substantiate why stock battery has issues. Or what it has to do with RAM usage. Sure the battery has small mAh...but it doesn't require a lot of research to see that (as it is written on the battery).
I've made this statement before but then about head
Take your laptop off the charger and just leave it there most normal battery's of a laptop shouldn't last longer then 3-4h
The hardware of this phone is similar to a old Packard bell dot-s (the 2007 model)
1.5 ghz dual core with a 4.2 inch qhd screen is consuming a lot of battery usage. Nothing wrong with sense. Its allready build for the best performance and battery usage
If you want better battery life buy an anker 1900 or the 3800 something battery
sent from my Nokia 3310
Its not only the Sensation that has this 'issue'.
Its common knowledge that any smartphone has poor battery life.
Not really gonna last much longer than a day.
At the end of the day, we are probably near the top limit of what Li-Ion batteries can do; Need a new type of technology to supersede it.
(PS, the most I got out of one charge cycle on my Sensation was 1 day, 11 hours and a few minutes - not too shabby I'd say)
The main problem is that all the latest phones has to be so f...... superslim.
Who cares if the phone is one or two mm thicker if we get an ekstra day of battery life?
I don't wear tights and my pockets can take it
Uae the anker battery it is amazing
Sent from my HTC Sensation 4G using XDA App
bradmill08 said:
Uae the anker battery it is amazing
Sent from my HTC Sensation 4G using XDA App
Click to expand...
Click to collapse
Is it really *that* good? I've heard both!
Delete?
Can we delete this thread?
The title is misleading and there is no new information, only a random allegation that the battery is not 'environment friendly' whatever that means in this context.
ninetwozero said:
Is it really *that* good? I've heard both!
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Click to collapse
It's not THAT good, but it's definitely BETTER than stock.
stroobach said:
I've made this statement before but then about head
Take your laptop of the charger and just leave it there most normal battery's of a laptop shouldn't last longer then 3-4h
The hardware of this phone is similar to a old Packard bell dot-s (the 2007 model)
1.5 ghz dual core with a 4.2 inch qhd screen is consuming a lot of battery usage. Nothing wrong with sense. Its allready build for the best performance and battery usage
If you want better battery life buy an anker 1900 or the 3800 something battery
sent from my Nokia 3310
Click to expand...
Click to collapse
PLEASE stop making this comparison. Just because the frequency off the processor is similar does not mean they will act at all similarly in regards to energy consumption. proof: That laptop is getting 3-4h off of a battery many times the capacity of our batteries and many times the volume of the entire sensation. The laptop was designed for 100-150 watts of power, while the average phone is designed for less than 5. Sense is ABSOLUTELY NOT built for the best performance, as many custom roms have proven, and there is absolutely no way that modern, high tech tiny phone-scale dual core processors would be similar to 2007-era computing hardware in any way except for the number of cores and frequency. Also: Frequency does not mean everything. it only measures how many times the processor cycles. The important number is instructions per cycle or instructions per second.
The_Green_Android_Robot said:
PLEASE stop making this comparison. Just because the frequency off the processor is similar does not mean they will act at all similarly in regards to energy consumption. proof: That laptop is getting 3-4h off of a battery many times the capacity of our batteries and many times the volume of the entire sensation. The laptop was designed for 100-150 watts of power, while the average phone is designed for less than 5. Sense is ABSOLUTELY NOT built for the best performance, as many custom roms have proven, and there is absolutely no way that modern, high tech tiny phone-scale dual core processors would be similar to 2007-era computing hardware in any way except for the number of cores and frequency. Also: Frequency does not mean everything. it only measures how many times the processor cycles. The important number is instructions per cycle or instructions per second.
Click to expand...
Click to collapse
/end thread
Sent from my HTC Sensation Z710e using Tapatalk

Best battery Saver

Idk if this goes in Q/A or not I never had a Q/A section as I came from the amaze but anyway. What battery savers do you guys find best? I Use Batter Defender but doesn't seem to really extend it. Would i be better of not using one at all?
I use 3 programs to help me maximize my battery life.
1) Badass Battery Monitor to figure out what's sucking juice, how long I've left, and how long until I'm full.
2) 2x Battery to manage background data. This probably saves me the most battery by disabling that data transfer a lot of the time.
3) Lux Auto Brightness to tweak my screen brightness. It's pretty much on "dark" now all the time aside for when I'm in really bright light.
JuiceDefender
I use the free version and it's very good!
I think the most effective battery saver is to flash a kernel that has become voltage control features and undervolt the cpu.
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klin1344 said:
I think the most effective battery saver is to flash a kernel that has become voltage control features and undervolt the cpu.
Sent using Tapatalk
Click to expand...
Click to collapse
I'm not a fan of under volting the CPU. Mainly because if my understanding of Ohms Law is correct, it's pointless. And my personal experience with it seems to corroborate my feelings.
Under volting the CPU in my experience just introduces stability and reliability issues. I've personally never seen any battery savings from it, especially since the CPU should, theoretically, just draw more current (I) to compensate for the lower voltage (E). It's watts (P = ExI) that matter, and the CPU, if I understand correctly, is going to demand the necessary P for the frequency requested. So under volting either starves the CPU (it can't get enough P), or over currents it (it draws more I to compensate for less E). There are slight variations in each CPU, obviously, which may allow for a margin of under volting to be possible without issue, but the battery savings of this, I feel, are so small, any you notice are most likely a placebo effect. Your screen, and apps constantly polling the CPU or network are your biggest source of battery drain to worry about IMHO.
Sent from my H1S using XDA Premium.
I use Power Controls widget.
Unless I'm actively using internet, I make sure to turn 4G data to 2G. That alone saves so much battery. If I want further battery saved, I disable internet completely with a touch of a widget. Now my phone will last a week just by what phones do best: Making phonecalls and texting.
I'm on 2.1 GHz overclock processor and when battery goes below 30% it goes to 1ghz I can see the battery being saved
Sent from my HTC One S using xda premium
k1llacanon said:
I'm on 2.1 GHz overclock processor and when battery goes below 30% it goes to 1ghz I can see the battery being saved
Sent from my HTC One S using xda premium
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Click to collapse
With an higher frequency the phone will use more power, like a pc processor when you overclock it so this is natural, but overclocking/downclocking has nothing to do with undervolting, MadJoe is right.
With JuiceDefender for example you can set your 3g/4g to shut off when you don't use the phone, it activates 3g/4g when you use your phone and at regular intervals in backgroud so it can fetch emails etc.
All automatic so you don't have to switch off and back on network connection every time.
As network connection is one of the services that consumes the battery a lot this is really effective and really improves battery life!
I've read a lot of complaints about these PowerManagement Apps using more battery life then they safe.
I don't know if this is right.
At the moment I'm running CM9 with modified auto-brightness options, auto-sync and 2G/3G/WIFI always on.
I'm really happy with the battery life I get, so I don't see why you would need a Battery Saver app with this phone.
rickyoon.vegas said:
I use Power Controls widget.
Unless I'm actively using internet, I make sure to turn 4G data to 2G. That alone saves so much battery. If I want further battery saved, I disable internet completely with a touch of a widget. Now my phone will last a week just by what phones do best: Making phonecalls and texting.
Click to expand...
Click to collapse
Heh, so why did you get a smart phone. Some older nokia's that can only talk and text can last for weeks on one charge, if you want a model # I can look it up 4 u.

HTC M8 vs Nexus 5 - Battery Life

Why does the M8 get much better battery life than the Nexus 5? Its battery is only 300 mAh larger and if anything, the Boomsound speakers, higher CPU clock speed and Sense 6 should sap some battery out of it. There must be something in the kernel that allows it to have such great battery life.
niral7 said:
Why does the M8 get much better battery life than the Nexus 5? Its battery is only 300 mAh larger and if anything, the Boomsound speakers, higher CPU clock speed and Sense 6 should sap some battery out of it. There must be something in the kernel that allows it to have such great battery life.
Click to expand...
Click to collapse
HTC uses tweaks, tricks and etc to make the battery more efficient
Nexus 5 has NOTHING for improvment
SO That's why :highfive:
Ehhhh I ain't buying that Story @t-shock. Sorry mate.
Magic is my guess.
But yes, the M8 far exceeds the N5 in battery. My M8 is setup the exact same (obviously keeping the M8's Dt2W feature enabled ) and it's average screen on time beats the N5 by 2 and a half hours.
But yes the battery is a bit bigger.... And yes, they must have made some things more cpu/battery efficient.
Its not because of tweaks OEMs tend to want things to be more stable and it to have better battery life but google doesn't really care google is more release it and create more bugs than they fix and if it weren't for our great custom ROM and kernel developers we would be stuck with google screwed up Roms
Thought this would be obvious. More efficient SoC. /thread
Clock speed being higher 0.1% of the time wouldn't be much of an added drain.
bblzd said:
Thought this would be obvious. More efficient SoC. /thread
Clock speed being higher 0.1% wouldn't be much of an added drain.
Click to expand...
Click to collapse
Then overclocking the Nexus 5 to 2.5 should help. Anandtech states that because tasks complete quicker, the CPU can drop to lower speeds quicker and save battery life. A dev should look into what optimizations HTC might have implemented into the M8. I would love to but I don't have any experience in that area.

S7 rooted battery life not too impressive.... how do I get it better?

OK, I have an att galaxy s7 g930a rooted phone. If imy out and about and not by an outlet, my battery is dead by around 6 pm. I'm not really a power user.
Immediately looking at better battery stats which it says since boot, system used 24%, and next is wake lock 6%, then kk launcher at 4%.
For battery optimization, I keep the phone in power saver mode. I also have juice defender ultimate and I run it in balanced mode. I have the setting unselected so the phone does not sync constantly for new emails etc.
I have power toggles and turn off GPS, mobile data, and WiFi when I'm not using it knowing all these transmitters drain the battery. And yet I can't get over 12 hours on a charge.
Try checking the cable n charger see if they are stock charger ..sometimes quick charge doesnt charge the battery properly ...u might need to replace battery if they r good
The battery on an s7 is built in.... not replacable.
It is replaceable u need to a good technician to open up the back using blow dryer type device n then swap the battery its pretty easy
I haven't had the phone a year yet. I really don't believe the battery itself is bad. Almost every situation like this I've seen has been an app draiming the battery... nothing physically wrong with the device.
What screen on time are you getting? What mobile network setting are you using/network are you on? 3G or 4G, if you're on a 3G network make sure it's set to 2G/3G in settings. Try installing gsam battery stats to see if you can identify anything unusual or something that's causing a drain.
Sent from my SM-G930F using Tapatalk
dorlow said:
I haven't had the phone a year yet. I really don't believe the battery itself is bad. Almost every situation like this I've seen has been an app draiming the battery... nothing physically wrong with the device.
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Click to collapse
I tend to agree with you. I've recently gone through seven S7's... I've exchanged the previous ones and am currently on my eighth device. Among these phones, it was only the international unlocked variant (SM-G930F) and the US unlocked variant (SM-G930U) that showed rather impressive battery life. I was often able to get 1.5 to 2 days of run time on a single charge from each of those models. The 930F was even better battery-wise than the 930U's, which weren't bad at all. Conversely, the batteries in the carrier variants that I've tried have seemed to deplete far too rapidly - similar to the situation you've described with your phone. My current S7 is an SM-G930P (Sprint variant) and its battery seems to last half as long (or less) than the unlocked S7 variants I've used.
The most generally disturbing thing for me about the GS7 is that there has been one or more significantly undesirable issues that seem exclusive to and inherently present among each of the model variant categories. At least this has appeared the case based upon the S7's that I've personally tested. For me, it seems there is no variant model of this device that's without seriously objectionable issues. However, finding some way to make the carrier-variant batteries last significantly longer would go a long way toward making other said issues more tolerable.
You could try greenify if you got xposed installed. There is another module too, but the name escapes me right now.
dorlow said:
OK, I have an att galaxy s7 g930a rooted phone.
Click to expand...
Click to collapse
From what i've read the root method using eng boot for snapdragon phones makes the cpu run at the highest frequency, so yes the battery life will suffer.
peachpuff said:
From what i've read the root method using eng boot for snapdragon phones makes the cpu run at the highest frequency, so yes the battery life will suffer.
Click to expand...
Click to collapse
Hmm, so the rooting method for the SD820 equipped S7's effectively overclocks the CPU? Perhaps it changes the multiplier?
The 4 cores on my unrooted SD820 equipped S7's have always idled at 307 MHz, and then spiked up as needed. Do the rooted SD820 equipped S7's idle at a higher clock speed? Or do they simply have a higher maximum clock speed - i.e., beyond 2.15 GHz? Either way, I can see how that would suck the battery down noticeably quicker.
clonk said:
Hmm, so the rooting method for the SD820 equipped S7's effectively overclocks the CPU? Perhaps it changes the multiplier?
The 4 cores on my unrooted SD820 equipped S7's have always idled at 307 MHz, and then spiked up as needed. Do the rooted SD820 equipped S7's idle at a higher clock speed? Or do they simply have a higher maximum clock speed - i.e., beyond 2.15 GHz? Either way, I can see how that would suck the battery down noticeably quicker.
Click to expand...
Click to collapse
It has to do with the governor, its apparently set to performance rather than interactive. Check what yours is set to, cpuid app can show you that.
peachpuff said:
It has to do with the governor, its apparently set to performance rather than interactive. Check what yours is set to, cpuid app can show you that.
Click to expand...
Click to collapse
Ah, that would be the CPU auto-scaling mechanism, if I'm not mistaken. I think mine's obviously set to interactive since the cores idle at 307 MHz. I'm guessing that if scaling were set to performance mode the cores would be running at full speed instead. And yes, that would drain the battery far quicker! And I sure DON'T need this 930P to drain its battery more rapidly than it already does. I'm currently playing with the debloater app to see if I can make some improvements tha way.

14nm/1080p vs 28nm/720p - Which Will Use Less Power?

Hi,
Need some advice here. Two phones for sale, both same brand/model however two separate specs and I need the one that will draw the least battery as I use the phones screen time for 8 straight hours a day (satnav) so the less battery draw the better. I do not care about anything else!
1) Snapdragon 625 - 14nm but 5.5" 1080p Screen
2) Snapdragon 435 - 28nm But 5.0" 720p Screen.
So the first phone has the newer 14nm CPU however has a bigger screen area (5.5") and Full HD.
However the second phone has a smaller screen area at 5.0" and is running less resolution @ 720 but has the older 28nm CPU which draws more power.
So which setup, in theory, would use less power?
NokiaBricks said:
Hi,
Need some advice here. Two phones for sale, both same brand/model however two separate specs and I need the one that will draw the least battery as I use the phones screen time for 8 straight hours a day (satnav) so the less battery draw the better. I do not care about anything else!
1) Snapdragon 625 - 14nm but 5.5" 1080p Screen
2) Snapdragon 435 - 28nm But 5.0" 720p Screen.
So the first phone has the newer 14nm CPU however has a bigger screen area (5.5") and Full HD.
However the second phone has a smaller screen area at 5.0" and is running less resolution @ 720 but has the older 28nm CPU which draws more power.
So which setup, in theory, would use less power?
Click to expand...
Click to collapse
see
What's your next smartphone / What should I buy by poseidon5213
and
**DEVICE SUGGESTION THREAD** -- Not sure what device to buy? Ask here! by KidCarter93
Sent from my XT1060 using XDA Labs
Hi, my question was a specific one regarding power draws, not sure if either of those threads are ideal for the question at hand.
NokiaBricks said:
Hi, my question was a specific one regarding power draws, not sure if either of those threads are ideal for the question at hand.
Click to expand...
Click to collapse
It comes down to usage I suppose. If the task at hand requires a lot of processing power but is less taxing on the screen/GPU then the SD 625 is better. If its the other way around then choose the device with the SD 435.
What about battery capacity, are those the same as well?
Freewander10 said:
It comes down to usage I suppose. If the task at hand requires a lot of processing power but is less taxing on the screen/GPU then the SD 625 is better. If its the other way around then choose the device with the SD 435.
What about battery capacity, are those the same as well?
Click to expand...
Click to collapse
Yup both phones have the same battery capacity, they are both identical in most respects, one is the note version the other is not.
The usage is 100% satnav (Waze) no other apps will be running. Any ideas on the usage of Waze?
NokiaBricks said:
Yup both phones have the same battery capacity, they are both identical in most respects, one is the note version the other is not.
The usage is 100% satnav (Waze) no other apps will be running. Any ideas on the usage of Waze?
Click to expand...
Click to collapse
I'd go for the newer/more efficient 625. As things such as GPS, Mobile Data and WiFi usage are embedded in the SoC. Screen brightness and density can be easily be adjusted to reduce power consumption. And you can also underclock the CPU (or turn on some sort of power saver mode) to squeeze out as much juice out of the battery as possible. The difference between a 720p and 1080 p device isn't that much anyway. But the improvements of the 625 over the 435 is far greater.

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