Develop Bugs

Battery life first impressions

What are you guys seeing in your first few days with your M9?
As for me, I can't remember any device I have ever owned that has had worse battery life than this M9. 3 hours of "light-slightly moderate" use brings me down to 75%. Very disappointing thus far.

definitely a downgrade from the M8 battery life. However once we are able install custom rom's and kernels ect. I expect it will improve.

xgerryx said:
What are you guys seeing in your first few days with your M9?
As for me, I can't remember any device I have ever owned that has had worse battery life than this M9. 3 hours of "light-slightly moderate" use brings me down to 75%. Very disappointing thus far.
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Interesting. Compared to my de-bloated, undervolted, S-Off and custom ROM'ed (Adrenaline) M8, I am seeing similar battery life comparatively on my M9. I did disable a lot (if not all) of the Bloat on the M9, so not sure if that helps the cause.

Horrible. I have to charge my phone about after 5-6 hours of use. I work in IT so I know Exchange is hammering the battery, but on my M8, I could last 8-9 hours before charge. This is includes browsing /r/sysadmin and other reddits.
For some reason too, it seems the QuickCharge 2.0 is slower on the M9. On my M8, it was stupid quick.

My experience has been mostly positive with the M9. First, I disabled all the VZW bloatware and then let the battery run very low and fully charged it. I repeated this 3 more times over the weekend. I took my battery off the charger at 6:00 AM and with medium use, I still have 84% left. The M8 was slightly better when running GPE so it's not apples to apples, yet.

xgerryx said:
What are you guys seeing in your first few days with your M9?
As for me, I can't remember any device I have ever owned that has had worse battery life than this M9. 3 hours of "light-slightly moderate" use brings me down to 75%. Very disappointing thus far.
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Click to collapse
My usage and battery life is comparable to yours. After 9 hours of only texts and phone calls I'm down to 50%.

I honestly think its too early to tell. I've disabled most, if not all, of the bloatware and I'm seeing "decent" but not "great" battery life. The phone still has the "new phone vibe" though, so I'm likely picking it up more frequently than I normally would. I'm also coming from the m7 though, not the m8, so my expectations are probably different. Custom ROMs and kernels are definitely going to change this though.
Cores can be completely disabled in custom kernels, which will likely provide a big boost with little performance loss (how often do you really think all four of those high-performance cores are being utilized?). Likewise, tweaking max clock speeds, undervolting, and tweaking/changing the governor will likely help things a lot too. We're just too used to our old ROM'd phones. It definitely seems like we'll be able to squeeze much more battery life out of the m9.

After reading some of the replies I think I'll go through and disable everything I can since I only did that to a moderate degree before. I am hoping that once we get some optimized kernels and different features it will help. Also, full root access to Greenify could help, but so far it's a horror show.

Coming from a galaxy s3 and sad to say iPhone 5 the battery has been superior to those two.
Sent from my HTC6535LVW using XDA Free mobile app

Chewcracka said:
Coming from a galaxy s3 and sad to say iPhone 5 the battery has been superior to those two.
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My GSIII quadrupled what I'm getting on this M9. My galaxy s5 doubled it, easily. I'm just hoping it gets better.

Weird, I've been on it moderately all day and on 10% as of right now. Maybe I'm just used to horrible battery of the iphone
Sent from my HTC6535LVW using XDA Free mobile app

Feels about the same as my m8 maybe even a tad less honestly. Might just be from overuse running stock rom though.

Something with these new phones is killing the battery. I got the S6 and the battery is horrible as well, I can't even go a full day without recharging.
Every OS release Google talks about all these features that are supposed to improve battery life, but it only seems to make them worse.

Stock non rooted, disabled as much bloatware as I could. Haven't Set up any of my Tasker profiles (lack of root makes them useless for now) and I got a full 1day 5hrs before dropping below 15 percent. Battery life seems pretty much par for the course on a flagship phone. I also had an s6 edge for a couple of days but picking it up off the counter was a weird experience for me so I switched back to HTC. Aside from the heating problem which I believe will be resolved either by the community or HTC I love the phone.

geoff5093 said:
Every OS release Google talks about all these features that are supposed to improve battery life, but it only seems to make them worse.
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The fact of the matter is yes, Google is making improvements in regards to battery life... but these improvements are offset and negated by consumer demand for faster, more powerful phones. The Snapdragon 810 is a beast of a mobile processor; its got two quad-core CPUs in it, so it definitely has to use some power to operate.
I can't wait to get a custom ROM my M9 and (hopefully) disable two of the A57 cores and see what happens (and see how performance is affected, if any).

I must say that I like it so much better than the SGS3! I can go a day and a half with out charging it... S3 was every day!
Even using GPS is less consuming... . Well worth the wait for HTC to get it right!
Other reasons that I like it better than the S3:
1. You can actually keep a grip on the M9!
2. The M9 is not as fragile!
3. Love the feel!
4. The audio is excellent (in my opinion better than any other available)!
5. The 3.5mm plug has a firm fit!
6. The charge port and audio port are both on the bottom!
I will stop there - I love this phone! (M9)

I'm literally sitting here with my phone plugged in, only with WiFi on and chrome browser, bloat disabled, screen on low, force closed most processes (ie play store, etc) and watching my battery % get lower... Plugged in!

WillyRy said:
I'm literally sitting here with my phone plugged in, only with WiFi on and chrome browser, bloat disabled, screen on low, force closed most processes (ie play store, etc) and watching my battery % get lower... Plugged in!
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Plugged into what, though? The 500mA maximum of the USB2 ports on your desktop/laptop is not enough to charge this phone with the screen on. You can slow-charge it at 500mA with the screen off, but it still takes some time. USB3 ports technically have a max draw of 900mA, which should be enough to slowly charge with the screen on, but in practice some laptops/motherboards won't allow any more than 500mA on their USB3 ports either. Use a wall charger for best results -- check the output rating though.
The included wall charger with the m9 is rated for [email protected] (1500mA). I'm not a fan of charging my devices extremely quickly, so I'll probably stick with the 1A (1000mA) charger that came with my m7.

Rain724 said:
Plugged into what, though? The 500mA maximum of the USB2 ports on your desktop/laptop is not enough to charge this phone with the screen on. You can slow-charge it at 500mA with the screen off, but it still takes some time. USB3 ports technically have a max draw of 900mA, which should be enough to slowly charge with the screen on, but in practice some laptops/motherboards won't allow any more than 500mA on their USB3 ports either. Use a wall charger for best results -- check the output rating though.
The included wall charger with the m9 is rated for [email protected] (1500mA). I'm not a fan of charging my devices extremely quickly, so I'll probably stick with the 1A (1000mA) charger that came with my m7.
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Using included wall charger and cable.
Plugged it in this afternoon, turned off screen and walked away... in 2 hours it gained 2% from 47 to 49
Edit:
Very well could be faulty device. Using different cables/outlets in different rooms yields same results. M7 on same setup charges steadily during heavy use. Using m7 outlet now. Dropped from 17% to 14% while editing this post. Better screen off now so it doesn't die on me...

I usually wake up by watching a few youtube videos. This morning I woke up, grabbed my phone off the charger and watched a 16 minute video at 1080p with adaptive brightness (which was low). In the 16 minutes my battery went from 100% to 83%. That is atrocious. Hopefully new ROM's and kernels will be able to remedy this.
Also, the other day I was using a quick charger I got at Verizon with my phone and got the message I was using the phone too much to charge. I could understand if it was plugged into a USB port on my computer. How did I get this message while using a quick charger?

Best way to use battery mods...

So I am curious how people are using their battery mods? I have a Tumi that came with my phone (swappa). I am grateful to have it though I realize it may be unneeded with the Z play. I was surprise the first time I used it to notice the phone does not sleep with the battery mod on. Is this normal? It correctly kept it at 80% for most of the day but I believe it probably wasted quite a bit of energy doing it.
Another thing I was surprised at was how HOT the MZP got when I charged it with the turbo charger. It was fast! I am curious at what cost this speed comes at. I am tempted to leave the battery mod on and charge wirelessly over night. This would be a much slower charge and possibly better for the phone's battery. I have had bad luck with batteries going bad and I would like to care for this one the best way possible. Would this be be better than just running a turbo charge for an hour each morning before leaving the house? I expect the phone will last the day without the battery mod without problems.
Anyway... I am curious to hear how others are managing their battery and using the battery mods in you have one. I am sure I can learn a thing or two. Also, any research on if turbo-charging decreases the life of the battery? I know they are designed for it, but they are also designed to last a little over a year. Moto won't be upset if I have to buy a new phone in two years. Thanks for the conversation!

Despite of what the research articles on Internet says, I have stopped plugging in my devices overnight on regular basis after I have had my share of bad luck with swollen batteries. I don't have a battery mod for my z play but I try to care for my battery as much as possible. Since phone gets charged in less than 2 hours with turbo charger, I generally charge it in day time or before going to bed. If I am at home and I am not in a hurry, I use a normal charger to charge my phone. It's well known that heat the known enemy of batteries and whenever I plug in turbo charger, my phone gets hot. Highest is 42 degrees only though ( ambient environments plays a role). As summers are approaching here, I simply switch on the fan whenever I charge using turbo charger.
Though turbo chargers are designed to charge fast acconpnained by the compatible chipset, I highly doubt that companies had some real progress in lithium batteries and they are not meant to be tinkled like that so I am a bit sckeptical regarding long term battery health when constantly used with turbo chargers.
Sent from my XT1635-02 using Tapatalk

2 different chargers and 2 different battery life???

So I have the wireless charging mod and I have several wireless chargers “All the same brand and model” I mostly only use two. The one beside my bed and the one at work. I know this is going to sound crazy but when I use the charger beside my bed and charge to %100 the battery life is not nearly as long. It is enough to be VERY noticeable I have tested and compared like 6 times. Charging on both to 100% and just let the phone sit for an hour and when it is charged by the one beside my bed it drains about 20% faster. Can a charger effect battery life in this way????

Based on my experiences... yes!

enetec said:
Based on my experiences... yes!
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I've never had that happen till now. I wonder if that particular charger is going bad or something

X_man. said:
I've never had that happen till now. I wonder if that particular charger is going bad or something
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Experiment... swap the chargers? bring the work one home and vice versa? maybe different mains or "dirty mains" could be the culprit? see if the issue follows the charger or area?

Uzephi said:
Experiment... swap the chargers? bring the work one home and vice versa? maybe different mains or "dirty mains" could be the culprit? see if the issue follows the charger or area?
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Great idea! I'll do that next week and post what happens.

X_man. said:
Great idea! I'll do that next week and post what happens.
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Click to collapse
Any time. I personally ran into that. It wasn't 20% more like 5% (average 3hr drain on my old Rezound was 2hrs and 45mins when charged from work. It was due to ingress on my work's lines that wasn't there at home. We had little oddities with some PC's until we found the UPS for our server was causing noise on our circuits).

This is absolutely normal. I build custom vape systems, some on li-poly Batts, some on li-ion. In both cases, charge rate -can- drastically affect charge effectiveness.
Most of this in your case likely has to do with thermal reads. Remember, not only is your phone and charger loaded with chips to be smart and safe about the charge, the battery (and sometimes individual cells within it) are also microchipped. Wireless charging creates a lot of heat. Should any one of the three components recognize this heat as excessive, the voltage will drop. I _believe_ this is most relevant during the end of "saturation" phase during charging, because if the battery says "no" during this phase, or anytime after (during completion/final) , the charger's subsequent "topping-charge" will also be denied. This kind of results in cycle of the charger saying "take it!" , The battery saying "no", dropping the voltage, the charger seeing the drop and expecting it to need a top-off and immediately trying to push again, repeat. The reason you're seeing the difference is because the charger is getting it's numbers from current output from the battery. The battery can drop down to zero current when overheated to prevent thermal rail? From occurring, which the charger then translates " 0 current must mean full".
That's one part of the difference, and not necessarily what is occurring... The other part has to do with manufacturing intent. Most USB 3.1/c power supplies are actually pushing out the maximum amperage and thus has a huge stage-1 charging state, with a minimum stage-2 (saturation) charging state. This basically translates into , your charger and phone are both lying when you rapid charge.
I'm sure I'm missing some facets or misrepresenting them here as I can't remember all the damn physics, but short story is: for absolute saturation, battery life, battery runtime, and safety... Charge at the same rate as battery discharge.
Edit: also what Uzephi mentioned about dirty power is also relevant. When power factors are not near 1.0 (1:1, meaning everything drawn is used, and everything requested is given), bad sh*t happens. This actually relates to the physical wave (sinusoidal) of electricity. All the anomalies are probably listed somewhere by some physicist, but suffice to say, there's a lot of possibilities, none of them "good" when out-of-phase power factors occur. This is why sensitive equipment almost always gets run through a power conditioner. The more sensitive and volatile the system, the more aggressive the conditioner needs to be (hence massive amplifiers for sound systems like the ones I use in my work need $200 glorified power strips).

Some_Donkus said:
This is absolutely normal. I build custom vape systems, some on li-poly Batts, some on li-ion. In both cases, charge rate -can- drastically affect charge effectiveness.
Most of this in your case likely has to do with thermal reads. Remember, not only is your phone and charger loaded with chips to be smart and safe about the charge, the battery (and sometimes individual cells within it) are also microchipped. Wireless charging creates a lot of heat. Should any one of the three components recognize this heat as excessive, the voltage will drop. I _believe_ this is most relevant during the end of "saturation" phase during charging, because if the battery says "no" during this phase, or anytime after (during completion/final) , the charger's subsequent "topping-charge" will also be denied. This kind of results in cycle of the charger saying "take it!" , The battery saying "no", dropping the voltage, the charger seeing the drop and expecting it to need a top-off and immediately trying to push again, repeat. The reason you're seeing the difference is because the charger is getting it's numbers from current output from the battery. The battery can drop down to zero current when overheated to prevent thermal rail? From occurring, which the charger then translates " 0 current must mean full".
That's one part of the difference, and not necessarily what is occurring... The other part has to do with manufacturing intent. Most USB 3.1/c power supplies are actually pushing out the maximum amperage and thus has a huge stage-1 charging state, with a minimum stage-2 (saturation) charging state. This basically translates into , your charger and phone are both lying when you rapid charge.
I'm sure I'm missing some facets or misrepresenting them here as I can't remember all the damn physics, but short story is: for absolute saturation, battery life, battery runtime, and safety... Charge at the same rate as battery discharge.
Edit: also what Uzephi mentioned about dirty power is also relevant. When power factors are not near 1.0 (1:1, meaning everything drawn is used, and everything requested is given), bad sh*t happens. This actually relates to the physical wave (sinusoidal) of electricity. All the anomalies are probably listed somewhere by some physicist, but suffice to say, there's a lot of possibilities, none of them "good" when out-of-phase power factors occur. This is why sensitive equipment almost always gets run through a power conditioner. The more sensitive and volatile the system, the more aggressive the conditioner needs to be (hence massive amplifiers for sound systems like the ones I use in my work need $200 glorified power strips).
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Some very good points! Doesn't seem quite as strange now LOL Thanks!

@Some_Donkus than for your complete explanation...
I've found even "about same rate" chargers (measured on phones...) often differs in heating battery: on my old Moto Z, the OnePlus X charger and the Samsung Galaxy Tab one both charged my phone (quite fast...), BUT the first heated it A LOT more, while the second hot A LOT itself!!
I think it's related to components quality too...
What I don't undestand well is why the Incipio MotoMod battery, which charge the phone at quite low rate, is able to heat it more than fast chargers....!?!?

enetec said:
@Some_Donkus than for your complete explanation...
I've found even "about same rate" chargers (measured on phones...) often differs in heating battery: on my old Moto Z, the OnePlus X charger and the Samsung Galaxy Tab one both charged my phone (quite fast...), BUT the first heated it A LOT more, while the second hot A LOT itself!!
I think it's related to components quality too...
What I don't undestand well is why the Incipio MotoMod battery, which charge the phone at quite low rate, is able to heat it more than fast chargers....!?!?
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Without knowing the specific charge voltage and stage setup of the individual batteries it's tough to speculate. One thing that comes in mind relates back to the power factors I was speaking of. It might actually be a high quality device that just has a lot of extra MOSFET + capacitors built in. These are used in order to "clean and manage" power on the fly. Capacitors are used to provide extra little bumps of discharge / supply when the battery cells themselves can't necessarily output enough mA/amp in a peak. MOSFETs do the opposite, providing a safe gateway for extra unused power either coming into the device from the battery, or from outside power to charging battery...
Both of these little guys basically are giant heat retainers (MOSFETs actually usually have heatsinks pasted to them, even the micro sized ones used in small devices)....
Just a thought.

Some_Donkus said:
...
Just a thought.
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Well, it surely could be but two weird things still happen with Incipio battery MOD (and, they say, NOT with the new Turbo Power which do fast charging instead! ):
- the overheat seems to be coming from the phone and not from the battery MOD...
- the Incipio battery MOD I have adds wireless charging too to the phone. What it's weird is that wireless charging phone (by the same rear connector on the phone) seems to overheat it less than using battery to charge it... (and battery charge rate is a bit lower...).
I think it could be related from the fact that battery MOD has probably to raise his voltage to charge phone... but strangely this overheats more phone than battery...!

enetec said:
Well, it surely could be but two weird things still happen with Incipio battery MOD (and, they say, NOT with the new Turbo Power which do fast charging instead! ):
- the overheat seems to be coming from the phone and not from the battery MOD...
- the Incipio battery MOD I have adds wireless charging too to the phone. What it's weird is that wireless charging phone (by the same rear connector on the phone) seems to overheat it less than using battery to charge it... (and battery charge rate is a bit lower...).
I think it could be related from the fact that battery MOD has probably to raise his voltage to charge phone... but strangely this overheats more phone than battery...!
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Ohhh, I see what you're saying...
Okay well, from what I understand, the Incipio Wireless mod actually charges the phone's battery first, THEN the pack within the mod. By default, magnetic induction (wireless charging method) actually will charge everything and anything within the field simultaneously.. but.. what I assume the incipio mod does is this....
Wireless charger sends out induction wave > (Induction wave charges both internal battery and mod for a moment) > Incipio mod get's a mV current reading from phone's internal battery > If internal phone battery mV current is ≠ 0, Incipio mod uses MOSFET's to gate-drain incoming charge from wireless for X amount of time (and possibly send charge to internal battery via connectors) + > induction wave continues to charge internal phone battery > Incipio takes another mV current reading from phone battery to see if it's full >>>
Cycle continues until Incipio gets mV current reading = 0, at which point it stops using gate-drains and accepts induction wave charge.
^^^ -IF- that's accurate, then it would mean that the Incipio mod is passing it's charge into the phone battery (received from induction wave) at the same time that the internal phone battery is receiving the induction wave from pad... So that internal battery is receiving a shiz-load of joose quickly...
again, pure speculation.... but it would make sense...

Charging speed

Hey guys,
I have recently purchased xiaomi mi 6 and this is my first quick charge phone so something got me worried. My battery charging speed seems to be too fast for me. Although I don't think temperatures are worrying however I'm conserned regarding long term effects.
I have xiaomi mi 6 6gb ram 128gb storage ceramic edition model.
These are pictures taken from battery app from playstore and image of my charger.
If anyone have some advise about this it would be great.
My greatest consern is that charging speed doesn't seem to diminish as charge is getting to 90% after it hits 90% it slows down dramatically. But from what I know it should change charging speed between 60 and 70 percent to little slower then from 0 to 60.
Is this damaging battery?
Screenshots below.
Thank you.

Totally fine. Its QC 3.0. Imagine this: QC4+ charges ~50-60% in under 15 minutes.

Oh such a releaf. Thank for replying.
Anyone got idea if this has any at all negative effect to battery?

No, higher battery voltage - slower charge, you would damage your battery in few weeks without this slow down.
Also avoid heavy load of phone when charging

ninokotur said:
Oh such a releaf. Thank for replying.
Anyone got idea if this has any at all negative effect to battery?
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Click to collapse
Would they put a fast charger in the box if the phone couldn't handle it? Nah probably not. Maybe Apple would......
Should you worry if you use the stock charger or a certified QC 3.0 charger? Definitely not its fine.
Are you still worried?: use a non QC 3.0 charger like 1.5 amp.
I use my old Sony one and it works equally well.
I find a slower charger gives slightly longer SOT.
The fast charger is just useful if I need power quickly.

Thanks guys

Question Thermal throttling

After 2 days of trial and error, it's thermal throttling due to battery temp.
It hits 96.20f on the battery and goes from 2.8mah at 15w to 8-900mah at 6w
Full charge speed comes back as soon as it's under 94f
This is something I never dealt with with my OnePlus phones....
6000mah always, no issues 40 minutes to full..
With my testing, I've found that,
While charging
Power saving mode with CPU throttle, screen rate throttle, Bluetooth off doesn't help keep it from throttling...
Charging, I can play a YouTube video slid to the side off the screen and browse the internet and after a good 10 minutes or so it's bouncing in and out of fast charging
Playing a game while charging get me around 400mah charging lol
Takes 10 minutes for a single percent when gaming when it gets up in temps
I'm a business owner and a heavy user when I'm using it.
I atleast now understand how it works and what the limits are.
Brightness is half way and on auto.
I would be fine with it getting a bit warmer to keep the fast charging going for sure...
Now I set it in front of the AC if I need some quick charging lol
Slight edit.. it even throttles charging when closed and not being used...

You telling me this phone I paid almost 2 grand for throttles like a baby after a little light use? I noticed today that Enhanced processing has been removed and the option to change the screens resolution has also been removed. I swear my note 20 ultra still kicks this phones butt

It's give or take, it doesn't like charging,
I was playing genshin impact when it got warm and dead lol, but when charging it's straddling the throttle on and off if your using it for sure, download battery charging monitor pro and watch for yourself
She games well I love it, I'm sure I'll be able to manage it, but just coming from a one plus it's mehh

Samsung has limited the charging speed while its in use since their old models blasted some time ago left and right. That is the reason samsung no longer gives faster charging speeds like other brands. We are stuck with 25w charging plus slow charging while using the mobile
It only hits full speed when the screen is off

eswar539 said:
Samsung has limited the charging speed shile its in use since their old models blasted some time ago left and right. That is the reason samsung no longer gives faster charging speeds like other brands. We are stuck with 25w charging plus slow charging while using the mobile
It only hits full speed when the screen is off
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Incorrect, I can take a screen recording. If the batter stays below 96f it won't throttle.
Like I said my fix is to put the phone in front of my ac for a minute flat for like 15 minutes of play while charging at full speed.
It has nothing to do with the screen being awake.. it's all on the battery temp.
I tested it by putting my phone in front of the AC when warmed up and as soon as it drops below 94 it's back to full speed.
Yes it's Samsung, but they will learn someday when other phone companies start pushing into the US like OnePlus has

Smittyzz said:
Incorrect, I can take a screen recording. If the batter stays below 96f it won't throttle.
Like I said my fix is to put the phone in front of my ac for a minute flat for like 15 minutes of play while charging at full speed.
It has nothing to do with the screen being awake.. it's all on the battery temp.
I tested it by putting my phone in front of the AC when warmed up and as soon as it drops below 94 it's back to full speed.
Yes it's Samsung, but they will learn someday when other phone companies start pushing into the US like OnePlus has
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pushing a battery thats charging full power is asking for a fire to happen. This is EXACTLY why Samsung and other manufacturers put these safety measures into play. Users think they know better when they don't and create safety hazards. Like dude please learn basics about batteries before you start a fire.

xlylegaman said:
pushing a battery thats charging full power is asking for a fire to happen. This is EXACTLY why Samsung and other manufacturers put these safety measures into play. Users think they know better when they don't and create safety hazards. Like dude please learn basics about batteries before you start a fire.
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For starters, I came from a one plus with 2x the charging speeds. What makes them so special to have it down?
And on top of that, I deal with lithium polymer batteries on a daily basis. Owning rc cars I've handled 100s of those "house burning down" batteries.
The phone doesn't even get warm.
I'm sorry your just used to following Samsung and what they say is the fastest standard for something lol
They gotta lack somewhere

I understood those limitations are for battery life. But you can be unhappy about it.
That's understandable and personally I don't care if the charging speed is not blazingly fast.

I remember my Note 7 well.