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I read that the battery in the EVO 3D shouldnt be charging at any more than 4.2v, according to battery indicator my phone is charging at 4.331v right now. Should I be worried?
From car and hvac experience I would say no. Cuz voltage is always jumping around a little bit around specifications. For instance a car battery is supposed to be at 12 volts but jumps between 11-13 volts. So i would say that your have nothing to be worried about. Just watch the temperature when we start overclocking.
What have people's phones been charging at? Also the battery can get up to 41 C
When idle my phone is @ 3.75 V and while charging its @ 3.98 V. That's using battery indicator from the market with battery at 100 degrees Fahrenheit and @ 49% life.
LostRib said:
What have people's phones been charging at? Also the battery can get up to 41 C
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Using Battery Monitor Widget, mine is charging at 4.34v right now. I don't think my Evo 4g charges that high, I thought it was around 4.1v. I will check when I charge that up later.
On the charger while using it, my phone got to 42C, and above 4.3V. Has me worried
I read something on here a couple days ago that said its normal for new cell phone batteries to become hot during the break in period. Didn't say how long that period was but I would guess a month. And why are you using celsius? That's just making this harder.
Update : 25 minutes charging now @ 4.1 V, 103 degrees F and 60%
LostRib said:
On the charger while using it, my phone got to 42C, and above 4.3V. Has me worried
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I wouldn't be too concerned with the temperature getting to 42C. For it being on the charger, and you also using at the same time...that's not too bad. I've had mine up to 45C when charging and using it. With my Evo 4g, it would get up to 47C sometimes while charging and tethering over 4g at the same time. I never had an issue. The phone has safety features implemented so that it will stop charging if it overheats. I'm not sure what the set point is for that, but when it's activated, you'll get an amber and orange flashing led light. That's letting you know it's too hot.
Haven't looked in to this issue at all on my phone, but come to think about it I do have something weird when charging.. Once the phone fully charges up and hits 100 percent it stops charging. I know this is a safety feature kinda thing but it would hit 100 and then the battery indicator would just show normal while it is still plugged in, and also the battery percentage would drop while still plugged in. Is this normal or no?
A few thoughts here:
1: 43 (Even 45) celsius is NOTHING for electronics. Hell, 50C is 122F. That's about how hot a car will get sitting in the sun on a 95-100 degree day for about an hour. Your cars electronic parts don't get cooked, do they? I read somewhere Lithium Ion batteries can handle up to 60C internally (140 F), and that's safety restraints, which means it's been lowballed. Your phone wont melt from the battery.
2: Yeah, it takes a few charge cycles to set your battery in. It'll run hotter than normal till it does. Think of it like a trampoline. Fresh, brand new, it's hard as hell to bounce on it cause it's so tight. However, after a while, it stretches out, and it's much easier. (Dirty minded people can stop laughing now) Same with car engines, subwoofers, etc. They all have a break-in period. The battery takes about a week to settle in, from what I've noticed. Mine ran hot for the first few days, and it's fine now.
3: 4.325 volts is within 3% of the stated 4.2. It's within the margin of error... But it should also be within engineering tolerances. If the guy who designed the phone/battery didn't allow for a 3% margin of error, he should be given an award for "Worst Engineer of the Year"... It should be 100% fine. Like the poster up there said, 12 volt batteries in cars can range from 11-13 (Id go so far as to say 10-14) and still operate the car 100% effectively. Also, you would NEVER get a full charge into a 4.2 volt battery if you put 4.2 volts into it. You've gotta have a higher voltage on the outside to force a charge into the inside (High school stuff I learned, so I may be a bit rusty)
4: To :Winning:, Yes, it's designed to charge like that. It gets to 100%, and sits there not charging. It will then drain down to 90% or so, and charge back up to 100, over and over. The OG Evo did this, (Albeit not as well) but the battery widgets wouldn't display it. That's why the Evo would drop 4 or 5% in the first 5 minutes of use. You would unplug it, and then the phone would query the battery and figure out that it was really at 95%, and display it correctly. It wasn't really draining 5% of the battery instantly.
5: Yes. Red/yellow flashing light = overheat. You can probably make it do this by sitting it in a parking lot on a 110 degree day in Arizona while charging it and leaving it face down on your dashboard for an hour. You won't fry it in your house unless you have a bad charge cable. A bad charging cable is the ONLY potential source of worry I have about overcharging/overheating/etc. 2$ Chinese chargers don't have any fail-safes installed in em usually. You have a 500$ phone, don't skimp on the thing that connects it to 120 volts of instant electronics death. (Or 12 volts, in the case of car chargers. But that's more like a slow, smoldering, smoky death)... It'd be like not using a condom with the one night chick you met at the bar. You don't plug your you-know-what into ANYTHING unless you know it's gonna be safe
Thanks I've mostly been using the HTC charger. I guess I'll stop worrying
Sent from my EVO 3D
Interesting observation.
Wasn't concerned about the voltage, but was watching the heat level.
With live wallpapers: +10C addition.
My charge temp is 33.9C without.
My charge temp was 42.8C with it.
Guess it'd be kinda hard to cram in a cooling fan for the graphics chip!!! hahaha
It takes all night just to charge this thing, when iplugged it in the wall with the USB cable it came with it takes like 2 hours and it only went up like 15-20% and my Acer iconia charges fully in an 1hr and a half, any way to make it charge faster?
Pretty much all night. Mine takes about 6 hours to reach 80%, then it gets stuck there from 1-3 hours, then it goes to 100% in another 1-2 hours. It is a big battery, but not any bigger than laptop batteries!
azoller1 said:
It takes all night just to charge this thing, when iplugged it in the wall with the USB cable it came with it takes like 2 hours and it only went up like 15-20% and my Acer iconia charges fully in an 1hr and a half, any way to make it charge faster?
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Samsung is known for being a bit on the conservative side with battery charging. Original GalaxyS phones had a current limit of 600 mA. GSII phones have a limit of 650.
In addition, all CPU/screen power usage counts against this limit - so if you've got 200 mA of screen/CPU power usage, that's only 400 into a 2500 mAh battery on the 5.0.
It looks like they planned for a limit of 700 mA on the 5.0, but at some point dropped it to 600 for some reason. (There's comments in the kernel code indicating that it changed...)
Good news is that it can be changed in the kernel to charge at up to 800 mA. I'll be working on this on the US 5.0 in a week or two.
How many of yall use the fast charger overnight? I do have a BlackBerry charger (850mA) which takes like 4.5hours to fully charge, so I use that to charge overnight.
Is it okay to use the fast charger for overnight charging?
I do. I have the phone for a short time (2-3 weeks) But no problems yet.
i charge in the morning for 30min -1h or in the evening to 90%+. i always charge to around 90% for batteryinfo to reset.
While the poco is charging the phone says its better to charge often short instead of overcharging the battery.
To your question, it should be alright to charge overnight. Just make sure it has good ventilation (not on your bed or under things.
If you want to preserve battery life cycle, then no. The closer to 100% you get, the worse it is for battery.
I prefer charging at night and in the morning if it's below 70%.
Otherwise, I will charge in the morning before work, and in the afternoon.
I only charge to 80% where possible
I had a bad experience with LG flex 2, I always used fast charger to charge overnight and with 2 years I got 2 dead batteries. Now I use Battery Charge Limit app and slow charger overnight. It stops charge at certain level like 75%. And that lasts for a full day for me.
asanidar said:
To your question, it should be alright to charge overnight. Just make sure it has good ventilation (not on your bed or under things.
If you want to preserve battery life cycle, then no. The closer to 100% you get, the worse it is for battery.
I prefer charging at night and in the morning if it's below 70%.
Otherwise, I will charge in the morning before work, and in the afternoon.
I only charge to 80% where possible
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I used to do this. But I've noticed that on days I don't fully charge the device, I have to plug in again mid day / evening, ending up using more than 1 battery cycle. If charged to a 100% at the end of the day it'll still have 20-30% left
ergo911 said:
I had a bad experience with LG flex 2, I always used fast charger to charge overnight and with 2 years I got 2 dead batteries. Now I use Battery Charge Limit app and slow charger overnight. It stops charge at certain level like 75%. And that lasts for a full day for me.
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This could be the result of a few factors.
Does the phone automatically cut off power when fully charged. Most new phones do cut off power or at least slow down the charge rate. If it does not, overcharging is one of the worst enemy of battery longevity/lifespan.
After power cut off, does it resume after the power gets below a certain level, or does it charge at a slower rate. Charging at a slower rate helps but it is still overcharging, so the slower the better.
As I mentioned previously, battery temperature. Fast/quick charging doesn't actually affect battery longevity/lifespan as long as the heat is controlled properly. A phone charging at 50 degrees Celsius at 5 watt (5 volt, 1 ampere) will be dead (unusable) faster than a phone charging at 35 degrees Celsius at 18 watt (9 volt, 2 ampere).
the_radeon said:
I used to do this. But I've noticed that on days I don't fully charge the device, I have to plug in again mid day / evening, ending up using more than 1 battery cycle. If charged to a 100% at the end of the day it'll still have 20-30% left
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If by battery cycle, you mean how many times it is charged, then true.
In terms of battery longevity/lifespan, then it's not very good.
Useful info:
https://www.androidauthority.com/maximize-battery-life-882395/
https://batteryuniversity.com/index.php/learn/article/how_to_prolong_lithium_based_batteries
I keep reading that you should try and just charge your phone to 80% to help keep the battery healthy, as going to 100% can shotren the life span of the battery.
How ciritcal is this?
I know letting your phone run down to 0% is bad as it takes a fully clylce then to get back too 100% and this is not good for the battery long ter, but i must confess i usually let my battery get to around 50/60% ish then charge back up to 100%
I've always charged my phones fully and never noticed any issues. Maybe if you plan on keeping a device for 10 years, but for the usual lifetime of a phone it's just fine. My OP7 is 2 and a half years old now and still has 86% battery health. I've seen others in Telegram groups say that they never charge to 100% and when they post their battery health it's not much different from mine, sometimes even less.
I think modern batteries are fine being fully charged ... otherwise the OEMs or battery manufacturers would limit them to 80 or 90% by default.
Nimueh said:
I've always charged my phones fully and never noticed any issues. Maybe if you plan on keeping a device for 10 years, but for the usual lifetime of a phone it's just fine. My OP7 is 2 and a half years old now and still has 86% battery health. I've seen others in Telegram groups say that they never charge to 100% and when they post their battery health it's not much different from mine, sometimes even less.
I think modern batteries are fine being fully charged ... otherwise the OEMs or battery manufacturers would limit them to 80 or 90% by default.
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I guess I have some buffer
mosio said:
I guess I have some buffer
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Hehe yea, I guess they all show 102% then because I have that as well
I like the adaptive charging, set up your bedtime and alarm for getting up (or turning over) After bedtime, phone gets trickle charged to achieve 100% at morning alarm. No excess heat etc. Phone then lasts me all day till bedtime when put on airplane mode, switch off Wi-Fi, & sleep. Works for me.
I'm showing 106%
I always charge to full, using adapting charging over night. Charging slowly and keeping temperature down is more important than keeping it to 80% from my understanding.
I just lay my phone on a slow charge Qi pad every night and when I get up it is at 100%. Nexus 6, Pixel 3, now Pixel 6. Perhaps my battery life went down a bit on my Pixel 3 after 3 years, but not enough to notice. I think 100% charge (at least slow charging) is safe for 3 to 5 years of battery life.
Li's like frequent midrange power cycling; it can extend the lifespan hundreds even thousands more full charge cycles.
Voltage and temperature are the Li's biggest stress factors. Low or high temperature charging can cause Li plating.
The higher the cell voltage, the faster it degrades.
The same is true with temperature.
Personally I just replace them every year or so as a failed Li can severely damage a phone. They tend to swell during a failure which can easily damage the display.
My Samsung S10+ is 27 months old now. I'm charging it to 80% mainly daily. Had maybe max 20 full charges and only once or twice to zero. I'm at 86% battery health (according to 146 sessions). Was 92% six months after buying brand new.
I think it helps. Also since the battery is OK (4100mah), dont need that extra 20%.
EDIT: 15W Samsung "fast" charging. As fast as that is ...
Zakelinho said:
My Samsung S10+ is 27 months old now. I'm charging it to 80% mainly daily. Had maybe max 20 full charges and only once or twice to zero. I'm at 86% battery health (according to 146 sessions). Was 92% six months after buying brand new.
I think it helps. Also since the battery is OK (4100mah), dont need that extra 20%.
EDIT: 15W Samsung "fast" charging. As fast as that is ...
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A Li is considered degraded when it reaches 80% of it's initial capacity. This signals the end of its useful service life.
Degraded Li's are more likely to fail.
Trust me it's better to replace it before it fails...
I think Better Battery Stats made that reco back in the day.
Charge to 80% and plug in at 10%.
Not so sure that really matters anymore though.
Both my 2 XL and Pixel 5 were plugged in before bed, unplugged when I got up, plugged back in when I hit 10-15% or when I went to bed.
If you plan on keeping your device for a long time (like 3-4 years) doing the unplug at 80% and plug in at 10% might make a diff.
Az Biker said:
I think Better Battery Stats made that reco back in the day.
Charge to 80% and plug in at 10%.
Not so sure that really matters anymore though.
Both my 2 XL and Pixel 5 were plugged in before bed, unplugged when I got up, plugged back in when I hit 10-15% or when I went to bed.
If you plan on keeping your device for a long time (like 3-4 years) doing the unplug at 80% and plug in at 10% might make a diff.
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10% is too low. It causes a lot of stress on the battery as it drops below 20% to charge from that starting point or lower.
Worse there's little usable energy after 20% because of the lower voltage. The phone uses the same wattage which is determined by V×A=W, so as the voltage drops it needs more milliamperes to make the same wattage. The discharge rate increases as the cell voltage drops.
A better low cut off is 30-40% or even higher and a high cutoff of 80% although 62% is optimum.
The Li likes frequent midrange power cycling. Charging beyond those parameters is for your convenience at the cost of battery lifespan.
Batteries are cheap and most are easy to replace... so I don't sweat it.
I expect a service life of 1-2 years on a heavily used N10+ battery.
However charging in the 40-72% range yields the most rapid fast charge in the shortest time so it makes sense to use this whenever convenient.
Well, I know things have been updated within Googles code itself.
"Adaptive Charging" / "Adatptive Connectivity" additions.
This was a real big problem for me with my HTC 10, (2016)
Battery degradation threads starting popping up.
I installed Accubattery after 1.5/2 years of owning the device and the battery was degraded to about 77% capacity at that time, IIRC. I was charging to 100% at that time, also.
So, I began charging stricly to 80%.
Compared to my HTC One M8 that to this day still has 90% capacity, and I used that device from the day Verizon released (3/2014) it until the day Verizon released the HTC 10 (5/2016).
I somehow managed to use the HTC 10 up until I bought the Pixel 5 on release day (10/2020).
I was charging the HTC 10 like 3 times a day just get through, and even went back to the HTC One M8 at one point because I had enough, but was waiting for the P5 to drop.
So to answer the question, I do believe it helps.
I do think that Adaptive charging/connectivity help, as well.
I take the view that if I don't need all the capacity on a particular day I charge no higher than 70%, which lands me around 30% end of day. Otherwise I'll guestimate what I need. Off to take some photo's tonight, so will probably charge it to 90% or so.
If you like fiddling around you can use something like Tasker to switch a smart plug that your charger's plugged into on and off at what you consider appropriate battery levels. Makes it all painless once set up. Or you can buy some extra hardware too. I use this in my car to limit the phone's max charge and temperature as, for me, I think most and fastest damage is done in a hot car float charging the phone at 100%.... https://chargie.org/ Not cheap but ok in my mind to hopefully extend the service life of the phone's battery. Less than the cost and hassle of replacing a battery anyway! (I'm not associated with Chargie other than as a customer)
OK, admittedly off-topic, but, this kind of sounds like a variation of the guidance I use for charging my electric car. Don't charge it unless it drops below 80% (so don't keep topping it up), but don't let it go below 20% regularly either. I mostly plug it in at around 60% and let it fully charge. Given the cost of a replacement battery would be more than the total value of the car, I hope this gives me 10 year of life.
Note10.1Dude said:
OK, admittedly off-topic, but, this kind of sounds like a variation of the guidance I use for charging my electric car. Don't charge it unless it drops below 80% (so don't keep topping it up), but don't let it go below 20% regularly either. I mostly plug it in at around 60% and let it fully charge. Given the cost of a replacement battery would be more than the total value of the car, I hope this gives me 10 year of life.
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EV metering is set up differently. What shows as 100% is likely a conservative 80% charge. Research for that variant.
A 35-40% low cut off is probably better as going lower generates more heat causing needless stress... unless you need that capacity.
Just downloaded the accubattery app and then fully charged but it’s estimating 6,401mah. Must be wrong and needs to calibrate over a few days.
I’ve never had any problems charging to 100% before so I’m not stopping now. I’ll be deleting this app if it keeps warning me like it has done.
Andyzurbs said:
Just downloaded the accubattery app and then fully charged but it’s estimating 6,401mah. Must be wrong and needs to calibrate over a few days.
I’ve never had any problems charging to 100% before so I’m not stopping now. I’ll be deleting this app if it keeps warning me like it has done.
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Turn it off then.
Andyzurbs said:
Just downloaded the accubattery app and then fully charged but it’s estimating 6,401mah. Must be wrong and needs to calibrate over a few days.
I’ve never had any problems charging to 100% before so I’m not stopping now. I’ll be deleting this app if it keeps warning me like it has done.
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Accubattery just provides a guide. See here:
battery drain
Hello, I'm using a pixel 6 with two cards sim. When I go to sleep the phone is fully charged and internet/wifi is turned off. When i wake up i have 88% battery (I lose 1,5% per hour). In battery use i see Ims Service. I did a test and in...
forum.xda-developers.com
I used to cycle from full to empty on my Pixel 2 before recharging, at about 3 years the battery couldnt last until lunch anymore. This meant more cycling, and I could fully discharge/recharge it 3 or 4 times a day. Within 6 months the battery only lasted 5 minutes, it was stuffed. Phone always hot and needed to stay on a charger 24/7, would turn off if I opened the camera without usb power connected.
Held out about 6 months on a permanent usb battery bank, was such a slog to wait until the Pixel 6 was released.
Hi Guys
Got the S22 Plus in Snapdragon variant and the phone doesnt charge nearly as quick as reviews online taking 1 Hour 30 mins for me, and yes I have fast charging enabled on the battery settings
I have read couple of articles and seen few videos about it. It does take 1 hr 30 mins to get fully charge.
I'm using Charger came with my S20plus along with the cable came with S20plus.
My phone charges up in 1Hr 10min max.
It depends on the room temperature and the phone temperature also I think.
However buying a 45W charger for S22plus is a waste of money.
Nvm
Usually, those charging times they advertise are from 0-80%. The way lithium ion batteries charge, they all slow way down after 80% . After that you may as well be using a 5w charger.
Get 45w charger I usually getting around 40minutes to 90%+. you will see Super Fast Charging 2.0.. but since android 13 update I only see Super Fast Charging although it charge as fast
Honestly, I am using my laptop type C charger. It shows as fast charging and max it takes is 1 hr 15-20 mins for full charge. So I think you are good.