Develop Bugs

Battery

Can I set my mobile to stop charging after a certain percentage?

I don't think so, only scenario I have seen regarding this, is when rooting, max charge level of 80%, but I know of this when I used a note 8

Could I ask why ?
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baylakedrive said:
Could I ask why ?
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They say your battery life decreases when you charge it fully. I got this off a site: Your phone's battery loses capacity every time you keep it fully charged all night, every night. About 20% loss per year!

My Tab S6 has even a setting to restrict charging to 85%.
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uhi711 said:
My Tab S6 has even a setting to restrict charging to 85%.
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Don't think my Note 10+ has that function:crying:

I also have the Note 10+ and I can confirm that, unfortunately, it does not have the setting to restrict charging to a certain percent.
You could use Bixby Routines to get a remainder (sound or message notification) when charging gets to a certain percentage.
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J48BLE said:
Can I set my mobile to stop charging after a certain percentage?
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That's a negative unless rooted.
Accubattery let's set an alarm that sounds even with the screen off (which it should be when charging).
Heat and voltage potential kill Li's. The higher the charge and cell temperature, the more damage.
•Li's love short partial charges midrange between 40-70% ie from say 45 to 65%. Partial midrange charging causes almost no wear.
•Avoid charging to 100%; best to stay below 80%.
•Avoid discharging below 30% or if you do only do a partial charge of 20-30%.
As you get nearer to the 6% limit the battery needs to provide more current to meet the fixed mobo V+/milliamp requirements thus more battery stress and heat buildup. Voltage converters need to work harder as well to step up the voltage for the mobo which also produces slightly more heat.
•Avoid letting the battery charge hot (above 99F).
○Avoid charging batteries below 80F and never charge if below freezing without warning phone first as it can cause Li plating which permanently degrades the cell.
Keep phone out of the sun; don't bake it.
•Don't allow a misconfigured apk(s) to constantly run it warm. Excessive current draw increases Li battery wear. An idling 10+ should be relatively cool to the touch.
Find the current drain(s) and correct.
•Fast charging is fine if you remember to not allow deep discharges.
•After about 80-90% to charge rate goes from 2%@min to 1%@min. 62-70% is an ideal charge stopping point for maximum battery lifespan.
○Never store an Li with less than 6%; charge when possible. Li's self discharge at a 2-3 rate per month.
They auto shutdown at 6%; if the voltage falls too low their protection circuitry will permanently disconnect the cell rendering it useless. It takes about 2-8 weeks for this voltage drop to happen in a cell at 6%.

How much is too much amperes for Redmi Note 9S

I installed this Fast charging module :
FastChargingByNotZeetaaV3.zip
drive.google.com
before I installed that it showed 300 -500 mA charging .
Now it shows 2200 -2500 mA .
Is this Current Is fine ?

Fast charging typically uses between 2000-4500+ ma.
In general:
If it's delivering higher than 1000 ma at 90% or higher that may be stressful for the battery.
Charging current should start ramping down at 80%.
If it allows fast charging at temperatures below approximately 72°F and certainly 50F this is highly undesirable.
Likewise it should terminate charging above approximately 103F
Li's love frequent midrange power cycling ie 40-72%. Fast charging will decrease battery lifespan somewhat. Charging beyond 80-90% will as well regardless of charge current.
Optimum start charging temperature is 82-90F.
Never attempt to charge a Li below 40F!

blackhawk said:
Fast charging typically uses between 2000-4500+ ma.
In general:
If it's delivering higher than 1000 ma at 90% or higher that may be stressful for the battery.
Charging current should start ramping down at 80%.
If it allows fast charging at temperatures below approximately 72°F and certainly 50F this is highly undesirable.
Likewise it should terminate charging above approximately 103F
Li's love frequent midrange power cycling ie 40-72%. Fast charging will decrease battery lifespan somewhat. Charging beyond 80-90% will as well regardless of charge current.
Optimum start charging temperature is 82-90F.
Never attempt to charge a Li below 40F!
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is this file supposed to charge down at 90% or higher .
also I am afraid . and I changed the ampere in the module
all changes are shown in the pic
# was 2450000 changed to 15000000
im not a expert btw .
is there any documentation that i can look up ?
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Don't know. Never played with that.
All my devices are running stock.
If you have complete control over the charging parameters you can definitely cause damage even a battery failure with improper settings.
A battery failure isn't pretty.
Stock devices have numerous safeguards to try to prevent that.

I turned on Restricted Charging which was turned off by the Module file .
and limited to 1500 mA instead of 2450 .
right not watching battery temps and amps . will let you know once 100% .

keisezrg99x said:
I turned on Restricted Charging which was turned off by the Module file .
and limited to 1500 mA instead of 2450 .
right not watching battery temps and amps . will let you know once 100% .
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1500 ma is typical low from 6-72% of course this also depends on the battery's capacity and the phone's design.
The figures I quoted apply to a Samsung N10+ with a 4300 mAh Li.
When you start altering hardware parameters you run the risk of damaging components.
Not saying you will but keep that in mind. Generally manufacturers optimize charging settings for best charging and battery longevity.
Any battery swelling is a failure, replace it asap if this occurs. It can damage the phone.

the reason why I'm doing this in first place , When i flashed a custom rom , it barely charging . It took like 5 hours to charge .

keisezrg99x said:
the reason why I'm doing this in first place , When i flashed a custom rom , it barely charging . It took like 5 hours to charge .
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Yeah that's no good.
Monitor it carefully until you understand its settings and know it's working as you want it to especially in the fast charging mode.

Is there any way to limit CPU usage to 70% WITHOUT disabling auto-sync?

If only Power Saving Mode let you choose whether to disable or enable auto-sync. Is there any way to somehow enable Power Saving Mode (to limit CPU to 70%) without disabling sync? I can't miss notifications but want to save some battery.

Running in anything lower than the optimized power setting really screws the N10+ up. More of an emergency measure than a normal operating state.
With a good battery you should be getting 10+ hours SOT if optimized... and days of standby time.

blackhawk said:
Running in anything lower than the optimized power setting really screws the N10+ up. More of an emergency measure than a normal operating state.
With a good battery you should be getting 10+ hours SOT if optimized... and days of standby time.
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I get 5-6 hours MAX of SOT and 6 is pushing it. AccuBattery has my health at like 93% so the battery isn't bad by any means. I regularly let the phone put unused apps to sleep and I never game.
I really just want to find ways to squeeze the most life out of battery without crippling my ability to get notifications as they arrive.

Something not right. Even with a degraded battery needing replacement I get a lot more than that.
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3440 mAh is 80% of the battery's original capacity and the end of its useful service life.

blackhawk said:
Something not right. Even with a degraded battery needing replacement I get a lot more than that.
View attachment 5798267View attachment 5798265
3440 mAh is 80% of the battery's original capacity and the end of its useful service life.
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AccuBattery's estimate for mine seems a bit worse than yours, but 10 hours of SOT isn't something I've ever been able to get. My estimated capacity is 3,908 (94%) of 4,170 mAh.

izzysomms said:
AccuBattery's estimate for mine seems a bit worse than yours, but 10 hours of SOT isn't something I've ever been able to get. My estimated capacity is 3,908 (94%) of 4,170 mAh.
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That's not bad. It needs to be optimized more if you want to increase the SOT.
Try temporarily disabling Google play Services when not needed. It's needed for Gmail, Google backup Transport and Playstore but not much more. I always have Playstore disabled as it's a troublemaker. Any cloud apps running in the background are also skewing the battery life.
I use manual brightness control; excessive brightness wastes battery and pixels. I use dark mode and themes to conserve display, battery and eyes. Also use Package Disabler to disable about 70 apks I don't use.

Question Charger loosing performance?

Hello guys!
I have the EU model with 66W charger.
It was strange for me that my phone 1-> 100% charge was about 5-6 min slower than the time mentioned in the GSMArena test.
To see what is going on I got a cable which displays the actual performance the phone is being charged.
It was strange that at first the performance was fluctuating between 57-59W.
Then at about 60% the performance dropped to about 35W.
Then as the battery charge increased the charger performance continued to drop.
For the last 3-5% the charger only operated at about 20W.
Is this normal behavior for a charger? As the charge of the battery increases the charger lowers performance?
Sorry for the stupid question, I just thought that it always operates at 60-66W.
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Probably normal. Fast charging always ramps down in steps as the charge level nears 100% to prevent Li damage.
Temperature and battery condition also influences charge rate.
6 minutes isn't much. Your battery may simply have a slightly higher capacity then the test one did

It is your phone that starts to draw less power from the charger as it starts getting full. This is by design and is done to reduce heat and maximize battery life.

Fast charging will not engage if the battery start temperature is too low or high for that charge cycle. Optimum charge start temperature is 82-90°F.
Starting below 72F or above 102F is not recommended. Keep battery temperature below 102F will charging, use cooling if needed. Failure to do so can cause Li plating which will permanently degrade the Li and possibly cause a failure.
NEVER attempt to charge a Li that's below 40F
Battery charging is a electrochemical reaction that requires heat to function properly... within certain temperature parameters.

TheMystic said:
It is your phone that starts to draw less power from the charger as it starts getting full. This is by design and is done to reduce heat and maximize battery life.
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Spot on - lithium batteries cannot be charged at the max rate all the time. Once the battery reaches about 70%, the charging rate drops off as it's slowly brought to 100%.

Question Screen battery consumption

I'm running the Xiaomi.eu rom on my Poco F5, and have noticed that the display is consuming quite a large chunk of my battery life on each charge. Please see the screenshot below. It corresponds to roughly 2.4 mAh per minute of screen on time.
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I just wanted to ask if this is to be expected or is out of the normal. This is quite new for me since I never saw such large battery consumption from the display on my last phone, which was a Xiaomi Mi 5s.
For your information, I'm using dark mode, static wallpaper, 60 Hz refresh rate, auto brightness enabled, and screen set to sleep after 30 s of inactivity.

Displays typically can use a lot of battery especially with high brightness levels.
Switch brightness control to manual and use at 20-40% brightness. Avoid using in direct sunlight as it's not good for it anyway.
Play with the refresh rate options.
Since it's a AMOLED display every pixel that's black or a darker color means less current used.
Use dark mode, and use minimalist icons.

@blackhawk - Thanks for your suggestions! For what it's worth, I fixed the brightness at about 30% for an entire day, and the screen battery consumption hasn't really changed much. It's still hovering around 2.4 mAh per minute of screen on time. The screen refresh rate is set to 60 Hz; the lowest it can be set at.

ragnaroknroll said:
@blackhawk - Thanks for your suggestions! For what it's worth, I fixed the brightness at about 30% for an entire day, and the screen battery consumption hasn't really changed much. It's still hovering around 2.4 mAh per minute of screen on time. The screen refresh rate is set to 60 Hz; the lowest it can be set at.
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My display on my N10+ is set around 30% and it's consuming 28% of the total battery consumption. It's hard for me to calculate it's actual mAh usage unless I charge to 100% which I almost never do.
Regardless other than changing the brightness manually and in your case playing with the refresh rate settings there's not much else you can do other than optimizing the display content.
This is my homepage setup.

Thanks for sending over these screenshots! Your 28% screen battery consumption is almost exactly the same as mine, which likely indicates nothing untoward is going on in my phone. That comes as quite a relief.
PS: Am loving the minimalism of your home screen.

ragnaroknroll said:
Thanks for sending over these screenshots! Your 28% screen battery consumption is almost exactly the same as mine, which likely indicates nothing untoward is going on in my phone. That comes as quite a relief.
PS: Am loving the minimalism of your home screen.
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You're welcome.
For a variable refresh rate display that's as much as you could hope for. For what it's doing that's not a bad number at all.
That's a stock N10+ and most of those mods are Samsung including the icon pack with the exception of Digi Clock and Energy Ring. Too bad Samsung is so screwed up now... so I keep running these.

I don't have the screen on time on my Poco F5, guess on Xiaomi.eu they brought it back..

blackhawk said:
You're welcome.
For a variable refresh rate display that's as much as you could hope for. For what it's doing that's not a bad number at all.
That's a stock N10+ and most of those mods are Samsung including the icon pack with the exception of Digi Clock and Energy Ring. Too bad Samsung is so screwed up now... so I keep running these.
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Don't know too much about Samsung phones. Why do you say they are screwed up?

ragnaroknroll said:
Don't know too much about Samsung phones. Why do you say they are screwed up?
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No expandable storage now in their flagships. The S23U is thicker, 30 gm heavier than the N10+ and the gets worst SOT... it's a long list.