Is charging time really slow for the Xperia Ultra?
Mine charges about 35% per hour.
It takes 3 hours to fully charge my phone. Coming from a Samsung Note 2 which charges completely in 1.5 hours, I find this really slow.
Charge current 1Ah is normal.
jourdy said:
Is charging time really slow for the Xperia Ultra?
Mine charges about 35% per hour.
It takes 3 hours to fully charge my phone. Coming from a Samsung Note 2 which charges completely in 1.5 hours, I find this really slow.
Click to expand...
Click to collapse
Try charging in Airplane Mode.
Well, there's two sides of fast charging.
One side, you need little time to charge (of course lol)
On the other side, the faster the charge (1,5 hour of full charge on lithiums is VERY fast) the more strains the battery experience in a charge cycle, hence shorter battery life. Since XZU battery is non removable, let's assume that sony play it safe..
Oh and CMIIW the charger for note 2 is rated at 2A DC output right (or was it the S4? I forgot)? That's higher than XZU's 1.5A DC output charger (CMIIW, haven't received my XZU yet).. So 1.5A DC to fill a 3Ah battery is about 2.5 hour, depending on the charge controller of the handset.
- Battery is 3050 mAh
- Charge current is 1 or 1.5 A(h), AKA 1000/1500 mAh
- Charging time for a 3000 mAh battery = (1000 mAh (1 A(h)) x 3 = 3000 mAh), or (1500 mAh (1.5 A(h)) x 2 = 3000 mAh)
TL;DR: It's normal. The bigger the battery, the longer it takes to charge.
You can use a 2 A charger, but it might damage the battery, or worse. Charging through a USB is also much slower (around 500 mAh)
jourdy said:
Is charging time really slow for the Xperia Ultra?
Mine charges about 35% per hour.
It takes 3 hours to fully charge my phone. Coming from a Samsung Note 2 which charges completely in 1.5 hours, I find this really slow.
Click to expand...
Click to collapse
That is incredibly fast already for a battery of our size.
LordManhattan said:
- Battery is 3050 mAh
- Charge current is 1 or 1.5 A(h), AKA 1000/1500 mAh
- Charging time for a 3000 mAh battery = (1000 mAh (1 A(h)) x 3 = 3000 mAh), or (1500 mAh (1.5 A(h)) x 2 = 3000 mAh)
TL;DR: It's normal. The bigger the battery, the longer it takes to charge.
You can use a 2 A charger, but it might damage the battery, or worse. Charging through a USB is also much slower (around 500 mAh)
Click to expand...
Click to collapse
Actually, charging lithium requires specific algortihm to maximize the battery's lifespan and capacity (CC-CV algorithm).
That's why phones manufacturers use "fast charge" marketing gimmick to charge your smartphone up to 80% capacity in just x hour. It is not actually "fast charge". It's just the CC phase, where the charging controller makes full use of the adaptor's output current. After that comes the CV phase, where every lithium batteries, no matter how big their capacity is, are in the mercy of current-voltage law... That said, charging a 3000mAh battery with a 1.5A adaptor will take more than 2 hours.
Technical things aside, charging (most of currently used) phone's batteries from "zero" to full capacity (which, to a certain extent, doesn't matter how big the battery's capacity is) in just 1.5 hours is near the limit of fast charging.
Thanks for the info. Takes me more or less 2.5 - 3 hours.
Now I know it is normal, thanks to your explanations. I was used to the Samsung Note 2's battery (3100 mAh) and it took just 1.5 hours to fully charge. I remember it being 1% increase per minute. Didn't know that the Samsung charger was 2A DC. Yikes, I sometimes use that to charge other devices.
unk_damnation said:
Actually, charging lithium requires specific algortihm to maximize the battery's lifespan and capacity (CC-CV algorithm).
That's why phones manufacturers use "fast charge" marketing gimmick to charge your smartphone up to 80% capacity in just x hour. It is not actually "fast charge". It's just the CC phase, where the charging controller makes full use of the adaptor's output current. After that comes the CV phase, where every lithium batteries, no matter how big their capacity is, are in the mercy of current-voltage law... That said, charging a 3000mAh battery with a 1.5A adaptor will take more than 2 hours.
Technical things aside, charging (most of currently used) phone's batteries from "zero" to full capacity (which, to a certain extent, doesn't matter how big the battery's capacity is) in just 1.5 hours is near the limit of fast charging.
Click to expand...
Click to collapse
Interesting! We learn something new every day! Thanks
My device charges to 60% fast but after that is takes forever to get to 100 % whats app with that ?
yamani.m said:
My device charges to 60% fast but after that is takes forever to get to 100 % whats app with that ?
Click to expand...
Click to collapse
Well for one thing, when you charge the battery, what you're doing is increasing its internal voltage. To charge the battery, you have to supply a higher voltage than the battery currently has, and so the higher the battery's charge, the slower it charges, all else being equal.
However, all is not equal, because at a certain point, the charger slows down the current it is delivering for safety reasons. These two things combine and the result is much slower charging after a certain point.
AntiLazarus said:
Well for one thing, when you charge the battery, what you're doing is increasing its internal voltage. To charge the battery, you have to supply a higher voltage than the battery currently has, and so the higher the battery's charge, the slower it charges, all else being equal.
However, all is not equal, because at a certain point, the charger slows down the current it is delivering for safety reasons. These two things combine and the result is much slower charging after a certain point.
Click to expand...
Click to collapse
Wel that sucks >…< thanks for the info!!
Sent from my C6802 using Tapatalk 4
i used the charger from galaxy s4 ( 2A) to charge my xperia z ultra but it didn't charge it faster than the sony stock charger ( 1.5A). Weird. it seems that the phone doesn't allow more amps to be transfered. thats ashame cause if you use the phone while charging it doesn't charge almost at all. the consumption is higher than the charge rate
I just compared samsung 2A charger and Sony 1.5A on stock KK 4.4.4 (108). Samsung charger is better if you have limited time.
Is it real that charging with a higher current is bad for battery ?
Samsung 00:00>1%
Samsung 01:00>53%
Samsung 02:00>93%
Samsung 02:26>100%
Sony 00:00>5%
Sony 01:00>45%
Sony 02:00>80%
Sony 03:00>100%
macrostr said:
I just compared samsung 2A charger and Sony 1.5A on stock KK 4.4.4 (108). Samsung charger is better if you have limited time.
Is it real that charging with a higher current is bad for battery ?
Click to expand...
Click to collapse
Debatable, but I don't know that much about battery tech, so i'm not going to speculate. I'll keep using the stock charger though, since the Ultra has an internal battery after all, and I won't risk damaging the battery by using a different charger.
I'm using the DK30 dock btw, and it takes 2 hours from 0-100%. Do you have the dock, or are you using a regular cable?
LordManhattan said:
Debatable, but I don't know that much about battery tech, so i'm not going to speculate. I'll keep using the stock charger though, since the Ultra has an internal battery after all, and I won't risk damaging the battery by using a different charger.
I'm using the DK30 dock btw, and it takes 2 hours from 0-100%. Do you have the dock, or are you using a regular cable?
Click to expand...
Click to collapse
Using regular cable. Today I'll visit local Sony store for DK30 and I can repeat the test with the dock.
1 hour difference is great,
My g5 gets pretty hot(40-45°C/104-113° F) while fast charging with QC 3.0 charger,is this normal or am I just being paranoid?
I think if android gets to hot it automatically shuts down at 150 f I think? 70-90 seems like the normal temp maybe more or less depending on what your doing. I would imagine it be on the higher side while charging. What app you use to monitor temp of phone while charging? I will test mine and report back results.
zee360 said:
My g5 gets pretty hot(40-45°C/104-113° F) while fast charging with QC 3.0 charger,is this normal or am I just being paranoid?
Click to expand...
Click to collapse
That sounds normal if you have the display on or have a demandingly busy/weak WiFi/LTE signal while charging.
Also note you will get throttled charging speed the warmer it gets - the system has several monitors on-board to protect from getting too hot. You can see what the system settings for temperatures are in root > system > etc > thermal-engine-8996.conf.
I attached a screenshot of some relevant settings from that file. The thresholds are degrees Celsius; you only get optimum charging speed with display off and temperatures below 42 °C. (Always-On Display setting doesn't seem to affect the "LCD-On-Monitor" for this purpose.) Temperatures 45°C and below are equivalent to 1 amp charging - slower but still decent. Any higher and significantly slow throttling occurs.
As a side note, you can physically verify this kind of info with an in-line "USB power monitor" device. It sits between your charger and cable and displays the volts and amps for you. Usually costs $10-$20 USD. Make sure it supports at least 9 volts and 4 amps to monitor QC 3.0. (Mine has a range of 3-20V and 0-4A.) Handy for figuring out if your charger or cables may be faulty and verifying charge rates.
Nick216ohio said:
I think if android gets to hot it automatically shuts down at 150 f I think? 70-90 seems like the normal temp maybe more or less depending on what your doing. I would imagine it be on the higher side while charging. What app you use to monitor temp of phone while charging? I will test mine and report back results.
Click to expand...
Click to collapse
you can improve the temperatures if you tear down the phone and apply mx4 in the cpu and ram, 10/15c of improvement at least. the g5 have ****y thermal pad, and cooling sistem.
Nick216ohio said:
I think if android gets to hot it automatically shuts down at 150 f I think? 70-90 seems like the normal temp maybe more or less depending on what your doing. I would imagine it be on the higher side while charging. What app you use to monitor temp of phone while charging? I will test mine and report back results.
Click to expand...
Click to collapse
Sorry for late reply,I am using accu battery which shows complete statistics.Anyway can you please tell me whether it will cause damage or not to my phone? Touching the phone while it's charging and screened off feels really hot.
PhantasmRezound said:
That sounds normal if you have the display on or have a demandingly busy/weak WiFi/LTE signal while charging.
Also note you will get throttled charging speed the warmer it gets - the system has several monitors on-board to protect from getting too hot. You can see what the system settings for temperatures are in root > system > etc > thermal-engine-8996.conf.
I attached a screenshot of some relevant settings from that file. The thresholds are degrees Celsius; you only get optimum charging speed with display off and temperatures below 42 °C. (Always-On Display setting doesn't seem to affect the "LCD-On-Monitor" for this purpose.) Temperatures 45°C and below are equivalent to 1 amp charging - slower but still decent. Any higher and significantly slow throttling occurs.
As a side note, you can physically verify this kind of info with an in-line "USB power monitor" device. It sits between your charger and cable and displays the volts and amps for you. Usually costs $10-$20 USD. Make sure it supports at least 9 volts and 4 amps to monitor QC 3.0. (Mine has a range of 3-20V and 0-4A.) Handy for figuring out if your charger or cables may be faulty and verifying charge rates.
Click to expand...
Click to collapse
My screen is off and its averagely arround 42-43°C but it's still charging at maximum speed i.e around 2900 mA and could you please tell me that all those temperature monitors which show live temperature are showing CPU or battery temperature? Because if it's battery it's written that the temperature shouldn't go above 40 and since it's going,wouldn't that be dangerous?
zee360 said:
My screen is off and its averagely arround 42-43°C but it's still charging at maximum speed i.e around 2900 mA and could you please tell me that all those temperature monitors which show live temperature are showing CPU or battery temperature? Because if it's battery it's written that the temperature shouldn't go above 40 and since it's going,wouldn't that be dangerous?
Click to expand...
Click to collapse
"Li ion batteries offer reasonably good charging performance at cooler temperatures and allow fast-charging in a temperature bandwidth of 5 to 45°C (41 to 113°F)." The battery can charge between 0 and 5°C and above 45°C but it will be reduced speed.
The discharge temperature range is "–20°C to 60°C (–4°F to 140°F)"
http://batteryuniversity.com/learn/article/charging_at_high_and_low_temperatures
Anecdotally I've had my HTC Rezound battery abused many times with charging (slowly) at or above 45°C. One night I even had it around 65°C when I fell asleep with it on a faulty charger *and* thermal safety on the OS disabled. After many cycles and abuses it had a very slight bulge and maybe 50% original capacity. Needless to say I bought a new battery, but it shows the limits in a proper li-ion are well above the charging/discharging temperatures.
You should only worry about performance degradation above 45°C and not approaching anything "dangerous" until perhaps north of 60°C.
I'm charging my G5 right now and using AccuBattery app as well, first couple of minutes I'm at 34% and 40°C with screen off which is in line with your results. I'd call it warm but not alarmingly hot. I'll test more charges on G5 by tomorrow.
I am using the latest LineagOS. I thought Le Max 2 has QC3.0 support which should let it run at 12v charge voltage, but it does not.
The best it does is 9V and 1.6A (measured using usb meter) totaling to 14.4W. I tried the phone at room temperature, also cooled it down in fridge and tried again. Results are same. The battery was 1% - 3% at start.
Is this normal? I calculated and 14.4W if batteryt was charged to 4.35V makes roughly 3300mA which sounds rather low. I expected phone to go around 4100mA at least while charging.
More importantly, it never switches to 12V charging voltage. Is that normal?
my phone is going up to 4100mA while charging. On some roms you have to enable quick charge in your phones settings.
@LivingLing did you test with a program like Ampere or using a USB meter device? Because your ROM may be giving you incorrect values and it can't be trusted.
There is no quick charge option in LineageOS but I can see that phone is using quick charge because charger increase voltage to 9V. I am trying to understand why it wouldn't go to 12V
yurtesen said:
@LivingLing did you test with a program like Ampere or using a USB meter device? Because your ROM may be giving you incorrect values and it can't be trusted.
There is no quick charge option in LineageOS but I can see that phone is using quick charge because charger increase voltage to 9V. I am trying to understand why it wouldn't go to 12V
Click to expand...
Click to collapse
No i didnt used anything like that, just mentioned the values given by the Rom. But my phone charges Form 10% to 100% in like 15 minutes. So thats actually pretty fast in my opinion.
That sounds impossible, make a screenshot from the charging graph please. That would be something about 10A charging current...
I get about 4,5A when I activate QC on the EUI
@LivingLing Your phone must be broken if you can charge 0 to 100% in 15 minutes. You can't really charge a lithium battery very fast after about 80% and thats why quick charge implementations never talk about 0 to 100% charge time.
With lithium battery, most implementations set the input voltage to about 4.35V and battery charges as fast as it can pull power. This slows down when battery is near full.
I recommend you to get a USB meter, they cost few dollars anyway and quite cool devices.
Do you guys also experience slow charging or is it just me?
I know I am not supposed to game while charging but still. The battery either remained at same level or got deterioated sometimes while charging and gaming.
Apart from gaming, charging does seem slow. I installed Ampere app from playstore and it averages around 2350 mA. Can you guys check and report back?
Note : Everything is stock from the box.
I think you answered your own question by saying your playing games while charging. That's why it's not charging like it should. Just don't game and charge
MakDroid said:
Apart from gaming, charging does seem slow. I installed Ampere app from playstore and it averages around 2350 mA. Can you guys check and report back?
Click to expand...
Click to collapse
Battery temperature can have impact on charging speed too. What Ampere says in this regard? In my case I observer current levels reaching 2900 mA, battery temperature showed by Ampere around 25 Celsius
Charged from 0 to 100 within 2 hours. Phone was switched off. Original charger and cable.
With aftermarket QC3 capable charger, ampere shows 2800mah+ consistently (I don't have the original charger to compare, but with Samsung's s8 original charger I get the same numbers).
Hi guys does anyone know how we can limit voltage when we charge ur phone?
What i use is rooted phone with ACC + AccA ront end but some bug you always have to check because most time AccA doesnt apply limit voltage as i ask.
Any better solution?
Why you need to limit the voltage? If you want to help battery to stay in good health for longer you should limit the charge current instead. Easiest way to do that is to use older charger with lower wattage. I usually charge my pixel 6 from my laptop which has type c ports with usb power delivery support and are limited to 12 watts so charge current never exceeds 2.1 ampers. I have also tested my old power bank and cable and there power is limited to even lower 7.5 watts or 1.5 ampers of current.
On battery university they said, the voltage from the charge is the problem not the amp speed, for example when your phone is at 3.8v(30%) and you charge with a quick charge 3amp at 4.05v(not 4.25v) you quickly recharge until 60%(4v) and you slowly and you reach 4.05v(+-70%) and you can let your phone charging longer you want the voltage never go over 4.05v and at 4.05v the said atfter 2000 recharge cycle you still have 90% of brand new battery capacity.
Your phone said full charge at 4.25v but with lithium ion it overcharging and that really dommage you battery life.
So in real is not the % of capacity because when you charge your phone to 80% diring the charge process the voltage use to charge is 4.35v and that is bad for the battery
BU-808: How to Prolong Lithium-based Batteries
BU meta description needed...
batteryuniversity.com
"Every 0.10V drop below 4.20V/cell doubles the cycle but holds less capacity. Raising the voltage above 4.20V/cell would shorten the life. The readings reflect regular Li-ion charging to 4.20V/cell."