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Next week getting a new Note 4 - and zerolemon 10,000mah battery!
I need to deep cycle battery 6-8 times to get phone to display the current vbbatt % correctly. The manufacturer for zerolemon says turn off fast charge and charge 12hrs each time.
That being said, with fast charge off, can I use a 5v 3.5 amp charger I see on amazon and possibly charge the phone faster than 12 hrs like normal is using a 2.1 amp charger?
Anyone tried this with let's say even the stock battery does the battery actually charge faster due to the increased amps or would it be a waste and still charges at the slower 2.1 amps?
I never deep cycled the battery and the longest discharge I got was 1 week with 16 hours on screen time...you just need to make sure you use an updated kernel with the zL fix.
The amperage rating is the max the charger can put out. The Note will draw the same amperage on either charger because they are both 5V.
ackliph said:
The amperage rating is the max the charger can put out. The Note will draw the same amperage on either charger because they are both 5V.
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But will the phone charge faster on 3.5 amps at 5v vs the 1.5 amp or 2.1 amp the stock charger puts out? I am getting ZeroLemon and need to deep cycle the battery a few times and am trying to have it fully charged in less than the standard 12 hrs - was hoping a charger with more amps would cut down on the 12 hrs lol
http://www.amazon.com/gp/product/B00WN86VYQ/ref=ox_sc_act_title_8?ie=UTF8&psc=1&smid=A3RPN0HBLXDN8Z
i just used the stock fast charger on my zerolemmon with fast charge on and i never let it go the full 1 hours. Ive had insane battery life with it so i dont think it matters
drtechnology said:
But will the phone charge faster on 3.5 amps at 5v vs the 1.5 amp or 2.1 amp the stock charger puts out? I am getting ZeroLemon and need to deep cycle the battery a few times and am trying to have it fully charged in less than the standard 12 hrs - was hoping a charger with more amps would cut down on the 12 hrs lol
http://www.amazon.com/gp/product/B00WN86VYQ/ref=ox_sc_act_title_8?ie=UTF8&psc=1&smid=A3RPN0HBLXDN8Z
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Your Note 4 will draw a maximum of 1.9A on a 5V standard charger and a maximum of 1.66A on a 9V Quickcharger. If you multiply these values, you will get your "charging speed" in Watts: The maximum is 9.5W on normal charger and 15W on a quick charger.
Using a higher rated normal charger (eg 5V/3A) will NOT INCREASE charging speed. The Note 4 will never draw more than 1.9A on 5V.
Using a lower rated normal charger (eg 5V/1A) WILL DECREASE the charging speed. The Note 4 will notice that it cannot get 1.9A from the charger and drop the current. Bad and/or long cables can also influence the charging speed negatively.
Also noteworthy: Quick charging will only work when screen is off. As soon as you turn your screen on, the charging speed when connected to a quick charger will drop from 15W to an extremely slow 5W. The only fix for this horrible Samsung joke is a custom ROM like CyanogenMod.
You can charge your Zerolemon battery nicely with the original Quickcharger that came with the phone. That will do 15W and is as fast as you can possibly charge.
joeuser said:
Your Note 4 will draw a maximum of 1.9A on a 5V standard charger and a maximum of 1.66A on a 9V Quickcharger. If you multiply these values, you will get your "charging speed" in Watts: The maximum is 9.5W on normal charger and 15W on a quick charger.
Using a higher rated normal charger (eg 5V/3A) will NOT INCREASE charging speed. The Note 4 will never draw more than 1.9A on 5V.
Using a lower rated normal charger (eg 5V/1A) WILL DECREASE the charging speed. The Note 4 will notice that it cannot get 1.9A from the charger and drop the current. Bad and/or long cables can also influence the charging speed negatively.
Also noteworthy: Quick charging will only work when screen is off. As soon as you turn your screen on, the charging speed when connected to a quick charger will drop from 15W to an extremely slow 5W. The only fix for this horrible Samsung joke is a custom ROM like CyanogenMod.
You can charge your Zerolemon battery nicely with the original Quickcharger that came with the phone. That will do 15W and is as fast as you can possibly charge.
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Wow. Good info. Thx. Now a ton with a hack to draw more amps lol. Hmmmm lolol
Hello,
as said in the title it does not make any difference how I charge (cable, adapter, wireless, fast (9V) or slow (5V)) it only charges max about 1020 mA when Screen is ON.
If the screen is of it charges the battery with a bit over 2.500mA (depends on the charger and how full the battery is..)
I have seen tests of other phones charging at 1.500mA and beyond even if the screen is on...
Is it only the Galaxy S"x" or are ther other "flagship"-Phones that also charge at a max of about 1000mA when screen is on and way faster when screen is of.
As far as I understood it has to do with the generated heat when converting the 5V or 9V to the battery Voltage that the current is limited to about 1.000 mA when screen is on.
But - at least on my S7 G930F the 1.020mA max with screen on are a fixed value it does not charge faster even if the phone is really cool on the inside and outside.. (checked with CPU-Z and Ampere and Accu Battery)
Did anyone you noticed the same and maybe tried other smartphones? Is it the same with oter brands then Samsung?
(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.
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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.
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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.
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?
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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.
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
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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.