I'm wondering if anyone has run into the S22 Ultra problem where the battery drains faster than it can be charged. I'm using Android Auto on my car's screen, so AA is active while I am driving and navigating. The S22U's screen is off. It doesn't matter if I am using wireless AA with a phone holder with built in 15W wireless charging, or wireless AA and the phone plugged into an AC fast charger, or wired AA with my phone plugged into my car's USB C port, the battery on the phone will actually drain faster than it can be charged. I did not have this problem with my S21U. With that phone, after a 3 or 4 hour drive, the battery would be at 100%. With the S22U, it would never reach 100%, but be at 75% or 80% at my destination. Is Android Auto that much of a battery hog on the S22U?
SloPoke23 said:
I'm wondering if anyone has run into the S22 Ultra problem where the battery drains faster than it can be charged. I'm using Android Auto on my car's screen, so AA is active while I am driving and navigating. The S22U's screen is off. It doesn't matter if I am using wireless AA with a phone holder with built in 15W wireless charging, or wireless AA and the phone plugged into an AC fast charger, or wired AA with my phone plugged into my car's USB C port, the battery on the phone will actually drain faster than it can be charged. I did not have this problem with my S21U. With that phone, after a 3 or 4 hour drive, the battery would be at 100%. With the S22U, it would never reach 100%, but be at 75% or 80% at my destination. Is Android Auto that much of a battery hog on the S22U?
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Using my S22 Ultra U1 with wired AA always charges my phone to 100% long before reaching my destination. Using wireless is another story. Did you make sure your fast charging settings are on?
zoman7663 said:
Using my S22 Ultra U1 with wired AA always charges my phone to 100% long before reaching my destination. Using wireless is another story. Did you make sure your fast charging settings are on?
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Yep, fast charging is on. And I'm using an AC charger that says "Super Fast Charging 2.0" when on my house current. Could be limited by the AC power plug in my car, but it should still charge faster than it drains I think.
Make sure the charger is good and it's power source as well. Use the correct Samsung cable, limit length to 3 feet.
If the device is drawing too much current the power controller will ramp down the charge current to protect the battery.
Some apps can run with the display off without skewing the charge curve if they don't draw too much current. High battery temperature can also cause this.
It could be a glitch or error in the firmware if the current draw is actually low. Or maybe it part of Samsung's new thermal paranoia. Sammy's just full of rude surprises lately...
SloPoke23 said:
Yep, fast charging is on. And I'm using an AC charger that says "Super Fast Charging 2.0" when on my house current. Could be limited by the AC power plug in my car, but it should still charge faster than it drains I think.
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The car inverter could be interacting with the brick's switching power supply or the power controller.
Fast charging with disengage if the preset conditions aren't met and maintained.
SloPoke23 said:
Yep, fast charging is on. And I'm using an AC charger that says "Super Fast Charging 2.0" when on my house current. Could be limited by the AC power plug in my car, but it should still charge faster than it drains I think.
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Just checked AC charger in car and it say "Super Fast 2.0".
blackhawk said:
Make sure the charger is good and it's power source as well. Use the correct Samsung cable, limit length to 3 feet.
If the device is drawing too much current the power controller will ramp down the charge current to protect the battery.
Some apps can run with the display off without skewing the charge curve if they don't draw too much current. High battery temperature can also cause this.
It could be a glitch or error in the firmware if the current draw is actually low. Or maybe it part of Samsung's new thermal paranoia. Sammy's just full of rude surprises lately...
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Charger and cable should be OK. Next time I'm on a long drive I will check the power draw. I have a cable that tells me how many watts is being drawn.
SloPoke23 said:
Charger and cable should be OK. Next time I'm on a long drive I will check the power draw. I have a cable that tells me how many watts is being drawn.
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Charging issues can be hard to troubleshoot.
In general these devices shouldn't be charged while in use. The most I'll do is sometimes listening with the Buds+ using Poweramp. The N10+ will tolerate this.
Google Services and such tend to use a fair amount of power as may the modem especially if switching between cell towers.
Once fast charging disengages it likely won't reengage unless the charging power is cycled.
So one high current usage spike is all it takes.
SloPoke23 said:
Yep, fast charging is on. And I'm using an AC charger that says "Super Fast Charging 2.0" when on my house current. Could be limited by the AC power plug in my car, but it should still charge faster than it drains I think.
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Agreed, I've used 65 watt A/C chargers in the car outlet before and work pretty much the same as in the house. Strange that your phone is behaving this way. I have a 2021 Bronco Sport and the wired (usb-c) is plenty strong enough to charge the phone while on AA. The previous Subaru was questionable at times but usually pulled it off on my S21 Ultra. Any way you can check the charging voltage /amperage while using you phone in the car?
zoman7663 said:
Agreed, I've used 65 watt A/C chargers in the car outlet before and work pretty much the same as in the house. Strange that your phone is behaving this way. I have a 2021 Bronco Sport and the wired (usb-c) is plenty strong enough to charge the phone while on AA. The previous Subaru was questionable at times but usually pulled it off on my S21 Ultra. Any way you can check the charging voltage /amperage while using you phone in the car?
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Can you please show which 65 AC charger you are using for car? Thanks
mrjoy said:
Can you please show which 65 AC charger you are using for car? Thanks
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GaN 66W USB C Charger, HyperJuice 3-Ports USB-C Power Adapter with PD3.0 QC3.0 Foldable Plug 65W Type-C Charger for Laptop, Smartphone, iPhone 11 12 Mini Pro Max XR, iPad Pro, MacBook Pro Air, Black https://a.co/d/gfKkLlv
The same it's for me, but I noticed that if I rotate the cable the phone will not drain anymore, I know that's weird, but this is the behaviour...Sometimes it's working, sometimes it's not... It depends also if I'm using Waze+Youtube, or only Waze
robi101012981 said:
The same it's for me, but I noticed that if I rotate the cable the phone will not drain anymore, I know that's weird, but this is the behaviour...Sometimes it's working, sometimes it's not... It depends also if I'm using Waze+Youtube, or only Waze
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I've encountered this too. If I plug in a cable one way, charges slowly. If I flip the cable 180°, it charges normally. This also happened on my Note 10+ 5G, and I've seen it happen on my daughter's S22 and S10. I think it is a cable problem, because with some cables I have this issue, but not with other cables. Not all USB-C cables are created equal. Also not all car USB ports or chargers are created equal.
I normally use wireless charging and connect to my car via BT though. I have an iOttie wireless charger in my car and haven't run into this problem. I have it mounted so that an A/C vent blows on the phone to prevent overheating from sunlight. I use Waze and Samsung Music regularly.
I have purchased 3 Port 65W charger for s22 Ultra & its charge Super Fast but there is didn't mention anything about GaN, If it won't have GaN then does my charger is useless?
I have a 2020 Honda CR-V and plug it in wired to the USB port and it charges fine. Doesn't drain or anything. I also have a Weather tech phone cup holder where the Cup is sitting about 8 inches in front of the charge port. So I got the shortest braided cable I could find for neatness which is 18 inches in length.
This should not happen unless there's a problem on your phone coz my phone always charges faster than drain and stays at 100% with power bank only(no fast charge), using navigation map and spotify.
coowkeee said:
This should not happen unless there's a problem on your phone coz my phone always charges faster than drain and stays at 100% with power bank only(no fast charge), using navigation map and spotify.
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Not a desirable configuration...
The higher the cell voltage and temperature, the faster an Li degrades.
Li's prefer frequent midrange power cycling as opposed to complete charge cycles or the worst staying at or near a full charge state.
If the display is on it's typical behavior for charging to ramp down even stop in order to protect the battery.
Related
When using my Toch Diamond as a GPS which is connected to a car charger, the battery will run flat in a few hours. Is there a charger that will charge it with a higher current than 500mA? It is inconvenient for a long trip.
Wait ..... you are saying that your GPS app runs your battery down even while plugged in the car charger?
Mine doesn't do that...
yangys said:
Is there a charger that will charge it with a higher current than 500mA? It is inconvenient for a long trip.
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Are you using an original HTC charger?
Some of the generic after-market car chargers output a lower current than what the GPS is actually draining from the phone, so effectively, rather than just charging it, that charger is simply "extending" the time it takes to drain the phone battery.
I'm not near my HTC car charger at the moment, but if I remember correctly the HTC charger outputs 2A.. ie, 2000mA? (can someone correct me if I'm wrong?) And I have no flat battery problems while using TomTom... (The fone does get warm, but that 's another issue that's been discussed previously...........)
Most car chargers only do 500mA
When using good navigation it will pull more than 500mA off your phone, so eventually, the phone will drop dead It's true, I have this too.
With an other ROM it can be fixed! Now I don't have this problem anymore. You can also connect 2 chargers parallel but you got to have the possibility in your car. Or you buy a universal USB car charger which can handle 1A. Just like home wall charger (No 2000mA ).
Good luck!
My car chager (with a mini USB output plug) is rated at 5V 2A. My suspicion is that the charge current is determined by the phone, not by the charger. The charger is simply a (constant voltage) 5V power supply. Even if the chager is capable of supplying 2A, the charging circuit in the phone is limiting it to a maximum of 500mA. If the phone is designed clever enough, it could allow a higher charging current though signaling via the two signal wires of the USB plug. Would anyone know if this is the case or not for Touch Diamond? If yes, what would be the signals for higher charge current?
Your idea about using two chargers sounds interesting. Would you be able to give us more details about how to charge one phone with two chargers? Or are you thinking of having two phone and two chargers? That is, after one phone battery gets flat, simply uses another phone.
Riel said:
Most car chargers only do 500mA
When using good navigation it will pull more than 500mA off your phone, so eventually, the phone will drop dead It's true, I have this too.
With an other ROM it can be fixed! Now I don't have this problem anymore. You can also connect 2 chargers parallel but you got to have the possibility in your car. Or you buy a universal USB car charger which can handle 1A. Just like home wall charger (No 2000mA ).
Good luck!
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Click to collapse
Confused
I have got an O2 Ignito (diamond) I have done an 8 hour round trip using GPS and my battery has not drained... And i do have the original I am using the charger that came with my polaris. my batt always stays full when plugged in and gps is running maybe your charger is what is causing it to drain
Regards
/KSPVs
Needs a 1 amp charger.
it says- output :5v 500mah
the original says-output:5v 1a(amper i guess)
will this screw up the battery?
chances are no, considering it is half what htc recommends you charge it with, either it will charge it very slowly (half the current of the original) or the voltage wont provide enough to kick the phone into charging mode and nothing will happen (i.e. the charger "wont work")
Thanks for the help
It'll work, but as panyan said, it'll recharge much more inefficiently than with a 1 amp charger.
Actually... It will charge the phone exactly as charging via USB, as USB is limited to 0.5A.
Yep, it will charge your phone just fine @ USB charging speed, I have a similar charger.
And some of you forgot to mention that the phone will struggle when for example you will play games or use gps. Charge will be insufficient and instead charging it will slowly discharge while using it.
Sent from my Desire HD uing XDA App
Well yes and no, in normal usage it will charge phone, but when you use your phone the way that you would drain the batty in two hours, then it will discharge.
Hey... Yeah if the charger is a car charger then it may not charge fast enough if using GPS software which can drain the battery fast. 1Amp reccomended for faster charging... other than that should charge fine but just slow like USB charging (which has a max of 500mA).
One question guys... I bought a car charger from ebay listed as for HTC phones. It looks like a cheap knock off product with a glowing blue HTC logo when used in the car. The device is rated at 2Amps. Now from what little I know about electronics I've been told that AC/DC Plug packs with more Amps are ok and the device just only uses what it needs. I'm not however familiar whith battery charing when you have a higher rated Amps charger... Would the battery on the phone just be greedy and "ask" for the full 2Amps? Would this then put strain or be dangerous by charging the phone too quickly?
Secondly while we are on the topic of electronics... I'm trying out a super cheap ebay battery supposedly rated at 1600mAH (I know these rating are usually fake). I've noticed the HTC battery is around 4.17V when fully charged. This battery charged up to 4.2V fully charged... Is that dangerous for the device?
2 amp is better, correct me if i am wrong. So the output is 5V and 2A, is that mean the power is 10W every hour ?
2 A charging current (if the phone takes in that much) will damage the battery in a long term use.
It is incredibly unlikely that the phone will discharge the battery faster than it charges unless you're doing something very wrong, e.g. Running a console emulator while downloading a large file over HSDPA with WiFi enabled (but not connected) and using GPS navigation with screen brightness at maximum!
Screen and background services take approx 150mAh, and I doubt radio will take much more than that combined. That puts drain 200mAh less than USB charging, 700mAh less than direct charging.
FYI: There's a spec for USB charging of mobile phones from supported USB ports which can pull up to 1500mA.
DeathJester said:
It is incredibly unlikely that the phone will discharge the battery faster than it charges unless you're doing something very wrong, e.g. Running a console emulator while downloading a large file over HSDPA with WiFi enabled (but not connected) and using GPS navigation with screen brightness at maximum!
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Click to collapse
Hmm... not sure for Desire HD I haven't tested GPS with SatNav software using current widget... I do know that I'm pulling well over 200mA just with basic use at home with Wi-Fi on and GPS & Bluetooth off and I kill all backround apps. I do know that I've been in the car and seen TomTom app on my friend's jailbroken iPhone 3G (or 3Gs) and with the GPS on and not doing anything intensive... we were actually travelling down a long straight highway, the phone was chewing more battery than the car charger could charge, so he switched off GPS.
Ah also guys no need to worry about the 2Amp charger... It sh*t itself on the 3rd car use and no longer works at all. Junk! I also noticed on the 2nd car trip that opening Android SpareParts the charge is displayed as USB Charging not AC Charging so yeah I believe that the car charger was only a standard USB (max 500mA) power output and not 1Amp let alone 2Amps. Annoying how false advertising or labelling is part and parcel with cheap Chinese products.I was meaning to test the charger's output with Current Widget (which is what I'll do for my next car charger) but the charger crapped out and was useless before I got a chance.
One thing I did notice from looking at a log using Current Widget while charging my phone on the A/C charger in standby, the charge tapers off the power output the more the battery is charged. To get an accurate idea of if the car charger is going to be outputting 1Amp I'd be sure the phone battery is down to 40% (or in the 40s) then with all other stuff switched off I'd run a log on Current Widget and turn the screen off for a few minutes. You should have a reading of around +700 to +800mA if the car charger is rated at 1Amp.
Be wary of the cheap Asian knock of car chargers with the coil spring cord and the HTC logo that lights up blue.... Not worth the 3 or 4 bucks they sell on ebay for.
There's a spec for USB charging of mobile phones from supported USB ports which can pull up to 1500mA.
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Click to collapse
There's commonly those double USB cables for laptop hard drives so yeah I can see that if the USB ports are actually giving you the full rated maximum of 500mA you can get 1Amp output with this kind of cable but 1500mA?!? The only way I'd see possible for this is either you have a tripple USB cable connected to 3USB ports that are all outputting the full 500mA (and that's if a triple cable even exists or lets say you solder another one onto a double cable) or you have a USB AC/DC charger or some other USB port/hub you've rigged up which provides more than the USB standards of max 500mA per port. How else is this possible?!? Has the max power output of 500mA changed since USB 2.0 standards?
yeah there are usb 2.0 ports with more than 500mA power supply.
some companys give some extra juice to their (or often only one) usb ports.
for example: i've got an Dell Studio XPS 16 Notebook here. it has 3 usb ports, 2 with normal 500mA supply and one with 1A (for charging your phone, etc).
DN41
This is a continuation of the discussion that was started here. Since I do not want to crowd that thread with an offtopic subject, I am continuing here. I am quoting the relevant posts from that thread also.
unni_kmr said:
One issue bothers me a lot. I cannot use the phone for navigation for more than 2 hours even with car charger connected. In about 2 hours, it drains out fully. My latest theory is that after about 30 mins of charging, the battery starts heating up, and so it stops charging.
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Click to collapse
mtdew said:
User error or bad unit I have zero issues with my GPS or car charging. Also what amperage is your car charger capable of outputting.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
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unni_kmr said:
I am not 100% sure in terms of the amperage. But I tried with a car charger capable of charging a laptop, using the wall charger and cable which came with the phone. I was sitting in the passenger seat, phone was in my lap (not mounted in windshield) and Google Maps was running in navigation mode. For the first 15 minutes or so, I saw that the phone was charging. The charge level increased by 1% or 2%. After I think 20 minutes, it stopped charging. CPU-Z app was showing battery status as
health: over heated or heated (don't remember clearly the text)
power source: connected
status: not charging or discharing
Phone's back was very hot. I unplugged the USB cable and connected it back, and it started charging again! I waited for it to cool down, removed the phone case, repeated this and got the same result.
This is why I believe the phone is doing something to protect it from over heating. I am not sure though.
Click to expand...
Click to collapse
mtdew said:
Amperage is important son too little it will discharge, I think it will limit if too much. Nav can cause some heat for some of these guys but I've never heard of it getting that high my guess is something was wrong.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
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acejavelin said:
I have gotten my last few chargers at Sam's Club, they are about $10, and are rated at [email protected]
In an older phone I had a similar issue where my phone would overheat and not charge properly, once I got a new charger I cut the end off the old one and read the voltage with a meter, it was putting out almost 7.1v (should be 4.75-5.25vDC for USB 1.0-2.0 standard, and 5.25-5.75vDC for USB 3.0), pretty sure that is what caused it... cheap components equals cheap quality and flaws. Current rating should be irrelevant, as long as it meets the devices minimum requirements (most modern phones are [email protected]), even if a charger is rated at 2, 3, or even 5 amps, the device should not draw more than it can handle. Current is drawn, not pushed, a device will draw the needed current at the expected voltage, you can't really "over-current" a device by using a power source that is rated at the proper voltage but a higher current. Similar instance can occur by using a charger that has too low of a current rating, the device will try to draw more current than the adapter is rated at and the adapter will eventually fail or fall out of specifications.
Some other good chargers are by Anker, PowerGen, or RAVPower, and of course a Samsung branded adapter will work well, most all of these can be purchased for $8-$15 on Amazon. If the adapter is not rated with a current rating, then skip it, it is probably only 600ma-750ma and will be more headache than it's worth in the long run.
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bps119 said:
Good to see that we're getting a new user who actually does their homework. :thumbup:
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
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technoid1964 said:
The Skyrocket (and several other Samsung phones) need special "type 2" chargers. Apple charges are type 6, so if it says compatible with Apple, don't use it as it may not work. If the two center pins on the USB port doesn't have a 50 ohm resistor across them (or not shorted) , the Skyrocket will only draw 350 mA. Samsung and older Curve BlackBerry chargers have the resistor. At 350 mA, the phone draws more than the charger is providing, and the charger circuitry heats up trying to keep up with demand.
Jrockttu has a great thread under General called "Fix your Skyrockets battery life"
I've MOD'd all of my chargers, now my phone is happy with the screen on all day while driving and it stays charged, or charges slowly...
Tim
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
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Click to collapse
To eliminate the possibilities mentioned above, I bought the following:
1. Car Charger: PowerGen Black 3.6Amps / 18W Dual USB Car charger
2. USB Cable: Mediabridge USB Charging Cable
I also installed this app (Skyrocket Charger Info).
Summary of what happened:
With new car charger: Fast Charge (A/C) - Charging at 898 ma
With old car charger: Charger Wakelock - Charging at 497 ma
When connected to mains using factory charger: Fast Charge (A/C) - Charging at 898 ma
When connected to PC USB port: Slow Charge (USB) - Charging at 497 ma
Even with this new charger, phone stops charging once it heats up.
The full story:
Once I plugged in the phone to the new car charger using the new USB cable, the app showed the charging current as "Fast Charge - Charging at 898 ma". This is the same mA value it shows when I plugin into the mains with the phone's factory charger. I drove around with maps for around 15 minutes. Once I stopped, I saw that charge level had dropped by around 9%. I immediately launched CPU-Z app. It was showing battery overheated & not charging (see attachment 1). The phone was hot.
I removed the charger. After I think 1 minute, the battery status became 'good'. I plugged in the charger again. It started charging. While I was looking at the CPU-Z screen, battery status changed from 'good' to 'overheated' and 'charging' to 'not charging'.
Attachments:
(Please note that these screenshots are from another test where I had driven for around 30 minutes, and is not based on the above story.)
1. Phone state once I stopped the car. Charger is connected, but phone is not charging. Note that ignition is on.
2. After removing the charger.
3. After connecting the charger again. Within a few seconds of taking this screenshot, it changed to what is shown in attachment 1.
So I guess I can't do much about this, right?
I can't remember if you replaced the battery or not.... That could also be any issue if it's getting old and can't absorb the charge as fast as it used to... It will heat up quicker.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
How old is your battery? And how many times a day do you plug it in?
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
Sorry. I somehow missed your replies.
technoid1964 said:
I can't remember if you replaced the battery or not.... That could also be any issue if it's getting old and can't absorb the charge as fast as it used to... It will heat up quicker.
Click to expand...
Click to collapse
I will try to purchase a new battery if its not too costly.
hotbyz168 said:
How old is your battery? And how many times a day do you plug it in?
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Click to collapse
My phone and battery are now 18 months old. When I am in office, I charge it twice. It doesn't drain much, but I keep it fully charged just before leaving office.
Phone can overheat when under direct sunlight with GPS, screen and CPU working (the most power-consuming activity on the phone happens to be navigation), and also charging. Nothing unusual in that - its internal temperature in this case can reach beyond 100 degrees C. The battery can't charge when above 60-70 degrees C, because it can get physically damaged or even explode.
Concealing the phone from direct sunlight might work.
Limiting the CPU frequency might work.
A new battery might work.
Hey guys,
I was looking for some clarification on this topic.
So I heard on a youtube video (can't remember which, for the life of me, I just know it was an S8 video) that Wireless Charging has a better impact on battery in the long run.
They had stated that the battery would continue to hold a better charge over time, where as, if you used wired charging, the amount of charge the battery can hold over time would be much less to when you first got it.
Now I do know that battery gets worse over time, however, I have never heard anything about how wireless charging can increase the longitivtiy of the battery.
Maybe someone on here might have more information on this?
I will try to find that youtube video but if this is the case, then I will definitely need to get a wireless charger.
Regards
Unless this youtuber tested 2 phones for a year, charging one with a cable and another with wireless charging i wouldn't listen to what they're saying.
peachpuff said:
Unless this youtuber tested 2 phones for a year, charging one with a cable and another with wireless charging i wouldn't listen to what they're saying.
Click to expand...
Click to collapse
Yeah I agree. A believe a charge cycle is the same regardless of how it is being charged.
Would never think wired charging puts more stress on battery life.
I think though that with wireless charging once the phone is fully charged the pad cuts out so it won't over charge
With a wired connection when the phone is charged its still consistently trying to charge which can end up damage battering the long term
craigels said:
I think though that with wireless charging once the phone is fully charged the pad cuts out so it won't over charge
With a wired connection when the phone is charged its still consistently trying to charge which can end up damage battering the long term
Click to expand...
Click to collapse
This is also what I have been wondering. If this is true then I may get a nice wireless pad for charging overnight (maybe the new official samsung "convertible" one but its damn expensive). I would have thought that the phone itself knows when a battery is charged and stops drawing the current from the cable though, so it would make no difference either way if that is true (but perhaps its not?).
But I did hear the exact opposite to op, that wireless charging was worse for the batteries, possibly due to the heat generated. But I don't know how true that is.
True
It's better for the battery because it charges it more slowly than a direct wired connection. There is no more heat buildup than using a wired charger, in fact likely less since the charging rate is lower.
As for the other comment that a wired charger doesn't shut off but keeps charging once the battery is full is patently false. The charging circuits whether wired or wireless are quite intelligent and gradually ramp down the charging current as the battery approaches capacity, ultimately delivering just enough current to keep the phone running. In a closed system the energy has to go somewhere and if the charger didn't do this you'd have 18W of power being dissipated as heat and a serious problem on your hands.
craigdamey said:
It's better for the battery because it charges it more slowly than a direct wired connection. There is no more heat buildup than using a wired charger, in fact likely less since the charging rate is lower.
As for the other comment that a wired charger doesn't shut off but keeps charging once the battery is full is patently false. The charging circuits whether wired or wireless are quite intelligent and gradually ramp down the charging current as the battery approaches capacity, ultimately delivering just enough current to keep the phone running. In a closed system the energy has to go somewhere and if the charger didn't do this you'd have 18W of power being dissipated as heat and a serious problem on your hands.
Click to expand...
Click to collapse
For wireless I believe the heat generated is more, it is about the method of delivering the power, not the speed. The induction used to transfer power wirelessly is obviously going to be far less efficient and will generate more heat to get even a slower transfer rate then getting the power straight down a cable (but if someone knows otherwise then feel free to correct me). But then I guess the slower charging rate might also put less stress on the battery which is probably good.
For the wired, what you are basically saying is that leaving a phone plugged in to a wired charger will not harm it since the current will have been reduced in the same way a car battery charger might reduce it to a "maintenance" mode once it is fully charged. So people are believing the old myths that you can overcharge a phone, which would seem to be impossible (although I do wonder why they keep slapping up notifications saying things like "FULLY CHARGED! UNPLUG CABLE!" as if leaving it plugged in would in some way damage it!).
Just saw this which explains the overcharging possibility (or lack of)
http://www.androidauthority.com/leave-phone-plugged-overnight-703078/
ewokuk said:
For wireless I believe the heat generated is more, it is about the method of delivering the power, not the speed. [/url]
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Click to collapse
The coils themselves don't generate a significant amount of heat, it's the battery itself that causes the phone to get hot. Slower charging means less heat, which is better for your battery so wireless charging will increase your battery life. As the article notes it is also best to keep your phone above 40% charge, partly because fast chargers slow down significantly after 50% to save the battery. That initial burst from 0-50% is done to save you from a dying battery but it takes its toll.
Also note that the S8/S8+ have new battery technology that provides much improved battery life. They're saying 5% loss of capacity after two years compared to 20% for previous generations.
As a bonus not continuously plugging/unplugging a cable from your USB port will make that last longer too. I hardly ever plug my S7 Edge into a physical cable, and I know quite a few people who have killed their USB ports and can no longer charge and or transfer data from them.
craigdamey said:
The coils themselves don't generate a significant amount of heat, it's the battery itself that causes the phone to get hot. Slower charging means less heat, which is better for your battery so wireless charging will increase your battery life. As the article notes it is also best to keep your phone above 40% charge, partly because fast chargers slow down significantly after 50% to save the battery. That initial burst from 0-50% is done to save you from a dying battery but it takes its toll.
Also note that the S8/S8+ have new battery technology that provides much improved battery life. They're saying 5% loss of capacity after two years compared to 20% for previous generations.
As a bonus not continuously plugging/unplugging a cable from your USB port will make that last longer too. I hardly ever plug my S7 Edge into a physical cable, and I know quite a few people who have killed their USB ports and can no longer charge and or transfer data from them.
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Yeah I am torn at the moment between using cable and getting a wireless charger. I like my stuff charged asap but that's partly because i never leave it plugged in overnight and want it charged before bed (which I now know is not a problem anyway) and partly because i want to be able to unplug it to use it if i get a message or email, which isn't an issue with wireless as I can just pick it up and put it back on there after. I assume taking it off the charging pad and putting it back on will not have any detrimental effects to the battery. I am just trying to weigh up the pros and cons of each. All things considered I am leaning towards wireless, particularly if it isn't worse for the battery (although lets face it the difference in degradation between wireless and wired, is going to be so small it's probably not even noticeable after a couple of years by which time I would have a new phone anyway). I wonder if there is a better wireless charger which will be more future proof than the new convertible samsung one (in case I ditch samsung in future) and still give max speed, I would like one that is tilted so I can see the screen though.
My s5 is 3 years old and has only ever been charged by the massive double width "micro USB" cable which takes some force to get in and out of the socket. Still works perfectly though. Never had any usb port of any kind on any device fail, no idea what these other people are doing to kill them!
ewokuk said:
Yeah I am torn at the moment between using cable and getting a wireless charger.
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Having the dock by my bed is very convenient. Just place it on at night and pick it up during the morning. If I need to grab it for anything I can without getting tangled up in wires and it even sits at the right angle so that the always on display becomes my nightstand clock/alarm clock. Once you've gone wireless you won't go back.
craigdamey said:
Having the dock by my bed is very convenient. Just place it on at night and pick it up during the morning. If I need to grab it for anything I can without getting tangled up in wires and it even sits at the right angle so that the always on display becomes my nightstand clock/alarm clock. Once you've gone wireless you won't go back.
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I always turn my phone off at night anyway so I don't get disturbed by some spam message or something (I know I can probably set it up to be silent at certain times, but then why leave it on at all, using the battery for nothing). £70 for that Samsung charger though!! I know there are much cheaper ones but I am not sure they will charge at the same rate, the new samsung one charges faster than any previous wireless charger AFAIK and I would want one where the phone can sit up, and most are just flat. Hmmmm although the do have it for £50 on amazon sold by "fonejoy", still steep though.
This one looks good https://www.amazon.co.uk/CHOETECH-W...=UTF8&qid=1492192247&sr=1-9&keywords=choetech but not sure if itll charge at the same speed as the new samsung one and doesnt use a USB-C connector which probably rules it out. May as well just get the samsung one.
I use the US version of this and it works fine. https://www.amazon.co.uk/d/Mobile-P...d=1492192742&sr=1-5&keywords=rav+power+qc+2.0. The Fast Charging Dock comes with a cable so that should be all you need.
And yes, I have my Do Not Disturb settings to suppress notifications 10:30PM to 6:30AM. Wife complained she couldn't sleep with all that noise going on
craigdamey said:
I use the US version of this and it works fine. https://www.amazon.co.uk/d/Mobile-P...d=1492192742&sr=1-5&keywords=rav+power+qc+2.0. The Fast Charging Dock comes with a cable so that should be all you need.
And yes, I have my Do Not Disturb settings to suppress notifications 10:30PM to 6:30AM. Wife complained she couldn't sleep with all that noise going on
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Thats a wall charger? I'm talking about the charging pad itself. I believe the new Samsung one outputs 15w so is faster than any previous ones which are all 10w I think.
ewokuk said:
Thats a wall charger? I'm talking about the charging pad itself. I believe the new Samsung one outputs 15w so is faster than any previous ones which are all 10w I think.
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There are only two types of charging dock, standard and fast-charge. None of them output 15W to the phone. The expensive Samsung is just a fancy fast-charge dock so it will charge at the same rate as the Seneo and others that support fast-charge. The Samsung fast-charge adapter only provides a maximum output power of 15W (9V @ 1.67A) so it would require 100% transfer efficiency to charge the phone at that power, and in reality it's only about 65% so at most you'll see 10W versus standard Qi charging at around 7W.
All of the Seneo chargers I have coupled with RavPower or Samsung Fast-Charge adapters charge at the same rate (10W to begin with tapering off to 7W above 50% charge).
craigdamey said:
There are only two types of charging dock, standard and fast-charge. None of them output 15W to the phone. The expensive Samsung is just a fancy fast-charge dock so it will charge at the same rate as the Seneo and others that support fast-charge. The Samsung fast-charge adapter only provides a maximum output power of 15W (9V @ 1.67A) so it would require 100% transfer efficiency to charge the phone at that power, and in reality it's only about 65% so at most you'll see 10W versus standard Qi charging at around 7W.
All of the Seneo chargers I have coupled with RavPower or Samsung Fast-Charge adapters charge at the same rate (10W to begin with tapering off to 7W above 50% charge).
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Ahh ok, I will have to check out a few seneo pads.
If your using fast charging AKA Adaptive charging it shouldn't matter either way. The Fast charging port on the phone, and the wireless charging should go through the phone and the phone should automatically stop all charging going to the battery. This is the reason why if you were to leave your fast charger on all night whether it be Wireless or wired, you can pick your phone up at 99% or 98% instead of 100%. The phone stopped charging, then when it drops to a certain % it starts to charge up again.
As far as which is actually best for strain, it shouldnt matter because afaik to the battery its the all the same. Wireless charging just has some coils almost that send the charge wirelessly, but it still goes to the same place.
This is what I have read from google, so I am no expert on the subject, but it seemed pretty legit, and makes sense to me, a person with a Tech background. If anyone knows better please be my guest.
I'm going with wireless charging pads at home but a magnetic cable for in the car.
Not found a good car holder that has the wireless pad built in so I will stick with my ibolt for a bit longer
Sent from my SM-G935F using Tapatalk
There is no correct answer to this question. Battery life is function of many things -
1. Every battery has specified charge cycle. One full charge from min to max is 1 cycle. Two full charge from mid to max is also 1 cycle. So the more you use your device, charge cycles will come to an end more quickly. For example if you use two similar spec phones; first one you use heavily requiring full cycle charge everyday vs second which you use less and requires full charge every alternate day (or to phrase in other way, first is almost completely discharged by evening, second is half discharged). So the theory goes that second phone battery will last double the time than first.
2. Every battery articles you read, you will find recommendation to charge battery in specified current or usually slow charging. Today's battery technology should be immune to this but I still turn fast charging off. It is likely that not all the batteries are immune.
3. Heat is bad for battery. Some wireless chargers heat up. The TYLT VU that I use get uncomfortably warm when I place phone vertically (possibly coils do not align and multiple of them gets activated). Heat build up is there during fast charging too. If you play CPU intensive games and charge at the same time, phone gets warm. All this heat is working negative to the life span of battery.
4. Lithium ion batteries have less chemical stress when they are not fully charged or fully discharged. If you research you will find articles telling one to keep battery between 40% to 90%. Hence I usually do not charge to 100% and if I do, I watch or play games to bring battery level down. Search for best charge level to store lithium ion batteries, I think it is from 45% to 50%. This I guess keeps batteries at the least chemical stress state. So do your maths if you are type who likes to keep battery at 100% charge at all the times.
As you can see there is no straight answer to this question. Battery life is function of all these factors.
Added: I didn't read full article but you can check this link which speaks about impact of heat and leaving battery to full charge state.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Thanks for everyones input on this!
By the way, not sure if it has been mentioned, but this is a pretty cool read:
http://www.androidpolice.com/2017/0...ill-degrade-less-quickly-than-the-galaxy-s7s/
So looks like the S8 won't deteriorate as much over time!
I got the OEM samsung convertible fast charging pad but it doesn't come with a wall plug as I read somewhere (I guess thats just us in the UK getting screwed over yet again). The manual says "Use only Samsung-approved chargers that support fast charging (9v/1.67A, 9v/2A, 12v/2.1A).". So I need a wall plug that will be able to provide the fastest charging speeds from it (which I am guessing is one that does 12v/2.1A??). I dont think all the standard plugs with 2.4a sockets are going to do it right? The "30w" RAVpower one that craigdamey linked says it can do 12v/2A but only for QC3.0 (which I obviously wont get since its just being plugged straight into the charging pad), otherwise its 5v/2.4a. Not sure what one to get now. Theres an Anker 24w one but that says 2.4a per port (I know little about electrics and how these things work!).
I just received and started using the RAM mount tough charge with X grip wireless charger that I use for a Samsung Galaxy Note 20 Ultra. https://www.rammount.com/part/RAM-HOL-UN12WB
I use it to attach and use my phone on my wheelchair. The charger is connected to a regular USB port which draws power from the power wheelchair batteries. As I use my phone, the wireless charging constantly and randomly stops working and the phone keeps on popping up that the wireless charging is paused with the light of the charger going red but then several seconds later it will start working again and the light turns green. I don't know if it's related but I have noticed the phone does get hot while charging on this particular charger as I use the phone. I just recently received a notification saying it was paused because the phone got too hot. I also turned off the fast wireless charging setting on my phone. I haven't had the same issue or have the first day it got too hot with other wireless chargers using the same USB connection of the wheelchair and plugged into a regular wall outlet. Do you have any suggestion to fix this issue? Is there a possibility I have a defective unit? If you can't think of a fix, is there a way anybody has figured out how to disable the wireless charging paused and the wireless charging pop-up notifications? It is quite annoying because when it starts charging the notification takes up much of the screen in the center. Thanks in advance.
That is only 10W charger so it can't do quick charge.
But maybe there is defekt in the wireless charger. Also rare names usually is typical China product that isn't well known and usually are poorly made so problems like these may occur
Jake.S said:
That is only 10W charger so it can't do quick charge.
But maybe there is defekt in the wireless charger. Also rare names usually is typical China product that isn't well known and usually are poorly made so problems like these may occur
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It is actually a quite reputable company that makes lots of phone and tablet mounts. I will contact the company because it sounds like it could be a defective product. I was just seeing if anybody have ideas. It could be an overheating issue. As it charges, the temperature moves anywhere between 96 degrees Fahrenheit + 106 degrees Fahrenheit. Is that a normal temperature range?
Is there a way to get rid of the wireless notification when it is charging and paused? Especially when it starts charging the pop-up is annoying
kyoung1033 said:
It is actually a quite reputable company that makes lots of phone and tablet mounts. I will contact the company because it sounds like it could be a defective product. I was just seeing if anybody have ideas. It could be an overheating issue. As it charges, the temperature moves anywhere between 96 degrees Fahrenheit + 106 degrees Fahrenheit. Is that a normal temperature range?
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I just looked up the information for the USB charging port adapter for the wheelchair. It says it can power up to 1.5A at 5V. Would there be an issue if the wireless charger is 10W?
kyoung1033 said:
I just looked up the information for the USB charging port adapter for the wheelchair. It says it can power up to 1.5A at 5V. Would there be an issue if the wireless charger is 10W?
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There might be an issue. If the USB port can only supply 7.5W then it will be impossible for the wireless charger to send 10W to the phone. Subtract losses for wireless charging inefficiency and you'd be lucky to see even 5W arrive at the phone. Depending on how good the link is from charger to phone in terms of gap and alignment you might get even less.
It's not just you. Mine has been doing that the last couple weeks too. On an older samsung wireless charger.
Seems like it started after one of the software updates, but can't be positive.
I just installed the android 11 update and am going to see if that fixes it. My wireless charger is at work so can't try it out until tomorrow.
I will say the phone is very noticeably faster after the android 11 update.