Database Info

Any chance to reach charging beyond 1500mAH consistently?

Good day. I have a g930L. I'm using an old original galaxy s4 charger with a 2A output. I've tried monitoring the current with ampere pro and noticed that charging goes up to 1700mah but for only a very short time like a couple of seconds and reduce down to 1A. It stays for 1000A until it fully charges. I used also ipad charger 10W and still same behavior. I also tried different cables but only a maximum ofless than 1800. Buying a wireless fast charging will make the phone reach 2A?

012512 said:
Good day. I have a g930L. I'm using an old original galaxy s4 charger with a 2A output. I've tried monitoring the current with ampere pro and noticed that charging goes up to 1700mah but for only a very short time like a couple of seconds and reduce down to 1A. It stays for 1000A until it fully charges. I used also ipad charger 10W and still same behavior. I also tried different cables but only a maximum ofless than 1800. Buying a wireless fast charging will make the phone reach 2A?
Click to expand...
Click to collapse
You can use my app to monitor charging more easily
https://forum.xda-developers.com/android/apps-games/charge-monitor-t3555496?nocache=1&styleid=22
To answer your question, wireless charging produces a bit more heat so I don't think it'll charge more rapidly. If you want to charge faster make sure fast changing is on.
Settings - Device maintenance - Battery - overflow menu - Advanced settings

012512 said:
Good day. I have a g930L. I'm using an old original galaxy s4 charger with a 2A output. I've tried monitoring the current with ampere pro and noticed that charging goes up to 1700mah but for only a very short time like a couple of seconds and reduce down to 1A. It stays for 1000A until it fully charges. I used also ipad charger 10W and still same behavior. I also tried different cables but only a maximum ofless than 1800. Buying a wireless fast charging will make the phone reach 2A?
Click to expand...
Click to collapse
How about buying an official S7 charger?
Doesn't sound like rocket science that old S4 chargers and chargers designed for completely different devices are not charging the S7 the way it was intended

[Q] How to bypass 6W fast charging software throttling during screen on?

(This is my first post. I hope this is the right place to post.)
I have observed that the S7 Edge's operating system does deliberately throttle the fast charging speed while the screen is on, apparently by sending a command to the charging circuitry.
Observations:
The maximum charging speed of the Galaxy S7 / S7 edge is usually 15 Watts (9V 1.67A). On a 5V USB charger, it can reach 1.8A, thus 9W.
But I have noticed that several Samsung phones, including the S7/S7 Edge, throttle / hard limit the fast charging speed to 6W (9V 0.67A or 5V 1.2A, measured using USB multimeter) while the device is in operation.
And by that I mean 6W total charging throughput. This means that if we assume the other device components need 2W in a moment, the battery only gets charged with 4W in that moment, which is nothing compared to the supposed 15W.
Some phones and pretty much all laptops use the superior spare current charging method, where the battery keeps charging at the same speed regardless of usage, because the power for the device components just gets drawn out in addition
Also, the S7 does charge at full speed with screen on, shortly after booting. This proves that it's not a hardware-controlled limitation, but that the operating system sends some kind of throttling command to the charging IC.
When the S7 is on bootloader screen, the charging speed is also not throttled. This means that Samsung's operating system has some kind of fault.
Manually applying 9V
When manually applying 9V (actually 9.5V for voltage drop compensation) using a laboratory power supply (and shorted USB data lanes to signal indefinite charging speeds), the S7 consumes 9V 1.8A during boot, which is 16.2W, of which obviously not all goes to the battery, because the battery is hard limited to 15W due to technical reasons.
But the deliberate software command of throttling to 6W during screen on is a serious handicap.
The 6W limit happens at any applied voltage. If I apply 7V, the 6W limit limits to around 0.85A. If I apply 6V, the current is around 1.0 A during screen on.
Is there a way to disable that software throttling command, and just keep charging at full speed during screen on?
The software might send some command to /sys/class/power_supply/battery, but I have not examined that enough yet.
About heat
If the battery temperature hits 35°C, the charging speed is limited to 10W, which is perfectly reasonable. I have not tested whether the 10W limit is induced by the charging controller hardware or the operating system, but it is to prevent further heating.
But the 6W hard limit during screen on happens at any temperature.
—————
Any help would be much appreciated.

An0n9 said:
(This is my first post. I hope this is the right place to post.)
I have observed that the S7 Edge's operating system does deliberately throttle the fast charging speed while the screen is on, apparently by sending a command to the charging circuitry.
Observations:
The maximum charging speed of the Galaxy S7 / S7 edge is usually 15 Watts (9V 1.67A). On a 5V USB charger, it can reach 1.8A, thus 9W.
But I have noticed that several Samsung phones, including the S7/S7 Edge, throttle / hard limit the fast charging speed to 6W (9V 0.67A or 5V 1.2A, measured using USB multimeter) while the device is in operation.
And by that I mean 6W total charging throughput. This means that if we assume the other device components need 2W in a moment, the battery only gets charged with 4W in that moment, which is nothing compared to the supposed 15W.
Some phones and pretty much all laptops use the superior spare current charging method, where the battery keeps charging at the same speed regardless of usage, because the power for the device components just gets drawn out in addition
Also, the S7 does charge at full speed with screen on, shortly after booting. This proves that it's not a hardware-controlled limitation, but that the operating system sends some kind of throttling command to the charging IC.
When the S7 is on bootloader screen, the charging speed is also not throttled. This means that Samsung's operating system has some kind of fault.
Manually applying 9V
When manually applying 9V (actually 9.5V for voltage drop compensation) using a laboratory power supply (and shorted USB data lanes to signal indefinite charging speeds), the S7 consumes 9V 1.8A during boot, which is 16.2W, of which obviously not all goes to the battery, because the battery is hard limited to 15W due to technical reasons.
But the deliberate software command of throttling to 6W during screen on is a serious handicap.
The 6W limit happens at any applied voltage. If I apply 7V, the 6W limit limits to around 0.85A. If I apply 6V, the current is around 1.0 A during screen on.
Is there a way to disable that software throttling command, and just keep charging at full speed during screen on?
The software might send some command to /sys/class/power_supply/battery, but I have not examined that enough yet.
About heat
If the battery temperature hits 35°C, the charging speed is limited to 10W, which is perfectly reasonable. I have not tested whether the 10W limit is induced by the charging controller hardware or the operating system, but it is to prevent further heating.
But the 6W hard limit during screen on happens at any temperature.
—————
Any help would be much appreciated.
Click to expand...
Click to collapse
There is a very good reason why you cannot access this setting.
Phone in use = heat, Battery Charging= heat, too much heat= blown up phone!
A laptop has big heat sink on the cpu and a cooling fan, phones do not.

Charging speed
cooltt said:
There is a very good reason why you cannot access this setting.
Phone in use = heat, Battery Charging= heat, too much heat= blown up phone!
A laptop has big heat sink on the cpu and a cooling fan, phones do not.
Click to expand...
Click to collapse
I know. But like I said:
The 6W limit occurs at any temperature, even at cold temperatures.
If the phone reaches 35°C, then it will throttle down charging speed anyway, no matter whether the device is in use or not.
I would like to have the full charging speed while the device is in use.
I don't mind some extra heat as much as charging much slower.

No fast charging while using the N20U

Hello,
I am getting the super fast charging only while the screen is locked. If I am using the device while it's charging, charging is not so fast.
It says super fast charging but it doesn't charge so fast.
Is it just my device or others facing the same issue?

enjoylife1788 said:
Hello,
I am getting the super fast charging only while the screen is locked. If I am using the device while it's charging, charging is not so fast.
It says super fast charging but it doesn't charge so fast.
Is it just my device or others facing the same issue?
Click to expand...
Click to collapse
This is turned off by default. View attachment 5105611
Sent from my BlackBerry Bold 9900

I have turned it on. But what I am talking is that it works when the phone is not in use.
Same charger while phone is in use the charging is slow.
Same charger while the phone is sleep mode, the charging is super fast.

This is normal to avoid over heating of battery while in use.

You can't have the screen on for fast charging, you can listen to music with bt though while fast charging.
Having the screen on disrupts the charge curve (it defaults to slow charging) and it's best practice not to do this.
•Start charge at 30-40% then let charge to 60-80%
To get a 20% charge in that range only takes about 10 minutes! Li's love to be used like this; short charge/use cycles do not degrade them like NiCads.
There is a known slight memory effect with Li's so periodically cycle them through a wider charge range.
•Never charge cell below freezing, best if cell temp is 80 F to 95 F. At 80 F or below plating can occur which would permanently degrade the cell.
Charging above 70% degrades the battery faster, above 90% the charging slows and the higher cell voltage degrades it even faster.
•Avoid charging to 100% except if you need to or to periodically do a full charge cycle.
Heat and high cell voltage are the killers of Li cells. By avoiding charging beyond 80% and high temperatures you can increase the battery lifespan by hundreds even thousands of full charge cycles.
A 20% is not a full charge cycle; 6%-100% is.
Five 20% charges would be roughly the equivalent of a full charge cycle in power but far less is cell degradation.
•Avoid discharging below 20%, 30% is better.
After 20% there's much less usable energy; the phone uses a constant 5 volts. The phone's voltage converters trade off milliamps for voltage and use more milliamps for converting lower cell voltage.
Volts x Amps = watts.
The phone's voltage and wattage requirements are constants. So at lower cell voltage the phone draws more milliamps to supply these; the battery provides less watt hours than at higher battery voltage levels.
So take a 10 minute break every 2 hours or so and let it fast charge during the break.

General Charging the device feels very slow - Exynos

Hello, 4 days ago I bought this new s22 ultra with exynos processor, but it is generating many doubts that the loading of the device I feel that it is going very slow or more than it should be.
It always takes 2 1/2 hours or more to charge 100% with a 47w essenger charger or a Samsung charger that I have from the s10+ which I think is 20w and 3a
Measuring the charging speed in a plant or portable battery that I always have mark at most 20w but never stays at that speed, usually oscillates a lot between 10 and 16w, and stays much more at 10w which makes me weird and annoying because it is very low
I do not know if I should buy a Samsung charger of 25w since from what I have seen the 45w charge does not work, and that charger would be 5A unlike the one I have that is 3A but I do not know if it would make any difference.
I would like to know if it happens to someone else or if it is something normal, this makes me think a lot about changing phones since the charge seems to be very slow.
Please would appreciate any help, I will also leave attached the charging settings I have placed and the measurement I have made with my charger, I serve any advice you have please

Charges fine (inc. super fast) with Samsung charger ex Note 20

I have Samsung (i think 25w charger) and from 10% to 100% Max 1h10 mins

45w charges quick enough

FreezerChu said:
Hello, 4 days ago I bought this new s22 ultra with exynos processor, but it is generating many doubts that the loading of the device I feel that it is going very slow or more than it should be.
It always takes 2 1/2 hours or more to charge 100% with a 47w essenger charger or a Samsung charger that I have from the s10+ which I think is 20w and 3a
Measuring the charging speed in a plant or portable battery that I always have mark at most 20w but never stays at that speed, usually oscillates a lot between 10 and 16w, and stays much more at 10w which makes me weird and annoying because it is very low
I do not know if I should buy a Samsung charger of 25w since from what I have seen the 45w charge does not work, and that charger would be 5A unlike the one I have that is 3A but I do not know if it would make any difference.
I would like to know if it happens to someone else or if it is something normal, this makes me think a lot about changing phones since the charge seems to be very slow.
Please would appreciate any help, I will also leave attached the charging settings I have placed and the measurement I have made with my charger, I serve any advice you have please
Click to expand...
Click to collapse
It's a QuickCharge 3. It's an old standard for Snapdragon phones and Samsung S-series before s20. To charge fast You need 45W PPS PD 3.0 charger. PPS is crucial.

If i remember correct samsung 45watt charging is 9v x 5A not 5v x 9A. If you have 3A the maximum you can charge is 27w (9v x 3A) but if your charger is 5v then only 15w (5v x 3A).

Exynos very fast charging battery and I tested 8 hours on TV Pingu

FreezerChu said:
Hello, 4 days ago I bought this new s22 ultra with exynos processor, but it is generating many doubts that the loading of the device I feel that it is going very slow or more than it should be.
It always takes 2 1/2 hours or more to charge 100% with a 47w essenger charger or a Samsung charger that I have from the s10+ which I think is 20w and 3a
Measuring the charging speed in a plant or portable battery that I always have mark at most 20w but never stays at that speed, usually oscillates a lot between 10 and 16w, and stays much more at 10w which makes me weird and annoying because it is very low
I do not know if I should buy a Samsung charger of 25w since from what I have seen the 45w charge does not work, and that charger would be 5A unlike the one I have that is 3A but I do not know if it would make any difference.
I would like to know if it happens to someone else or if it is something normal, this makes me think a lot about changing phones since the charge seems to be very slow.
Please would appreciate any help, I will also leave attached the charging settings I have placed and the measurement I have made with my charger, I serve any advice you have please
Click to expand...
Click to collapse
Turn off adaptive battery. It will change the charging speed for battery life savings. It's a new feature but has been making people think fast charging modes aren't working.

Samsung S10 only charges to 4.225 mV while turned on and upto 4.3 mV when turned off

i have a samsung galaxy s10 and somehow i notice that the charging speed is blazing fast from 89% to 100%. Then i monitor the peak voltage using AIDA64 and Accubattery. When my phone reached 100% it shows the voltage of 4.225 mV, i read that S10 supposed to charge upto 4.285 mV. After that i tried calibrating the battery by discharging it until my phone turned off by itself then charge to 100% while turned off and it shows 4.3 mV after i turned in on. What is happening to my phone and should i be worried about it?

In fact fast charging ramps down at about 80% then again around 90% in order to protect the battery. Excessive cold temperatures will cause fast charging not to engage.
You can't accurately measure Li charge level voltage or fast charge with the display on. If the display is on the power controller senses the excess power usage and ramps down fast charging. It will charge slowly at best.
To measure the voltage with Accubattery have the window open then turn off the display. When you turn it on you have about a second to see the voltage as it samples around every second or so.
It will immediately drop down then.
Depending on temperature, current draw and battery condition it may limit the top charge.
Fast charging to 100% stresses the battery needlessly as does constantly discharging below 20%. Li's prefer frequent midrange power cycling ie 40-72%. High cell voltage and temperature are their enemies. High discharge rates also can accelerate their degradation by driving up temperature.
Ideal minimum start charge temperature for fast charging is about 82F, minimum is 72F. If below about 55F fast charging will not engage for that charge cycle.
Cold charging Li's can cause Li plating which will permanently degrade the cell, a oid doing this!
NEVER attempt to charge an Li that is near freezing temperature

So thats the reason why my phone once dropped its percentage from 30% to 5% in an instant after having it in front of my car air conditioner. But is there a reason why my phone charged very fast from 89% to 100%?

It shouldn't drop that fast! Or charge faster near full charge. This is atypical performance.
You using the Samsung 25w brick and cable?
Erratic fast charging is a sign of a battery failure. Any swelling is a battery failure, replace asap.

Im using samsung 15w fast charging and btw i have replaced the battery around 5 months ago and i notice the fast charging speed only recently. Samsung didnt reset mt battery cycle when replacing the battery tho

Fixt1772 said:
Im using samsung 15w fast charging and btw i have replaced the battery around 5 months ago and i notice the fast charging speed only recently. Samsung didnt reset mt battery cycle when replacing the battery tho
Click to expand...
Click to collapse
You need the 25 watt Samsung brick and cable.
15 watts will slow fast charging down if it works at all. If fast charging it should add about 2%@minute for 4100mAh battery in the 20-70% charging range.