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As the question above if fast charging is better why Samsung let us make a choice? What is the difference?
Sent from my SM-N910C using Tapatalk
Probably is not better, its faster. I would imagine it will shorten battery life because of faster battery degradation due to exposure to higher temperature more often than "normal" charging.
Sent from my SM-N910T using XDA Free mobile app
so if i unchecked the option, but use the provided charger, it will still charge fast?
bogdan_wrc said:
so if i unchecked the option, but use the provided charger, it will still charge fast?
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Still charges relatively fast using the bundled charger without Fast Charge checked. I leave it unchecked as I'm never in a hurry when it's time to charge my phone.
and if i dont want to charge it fast, i have to use other charger?
bogdan_wrc said:
and if i dont want to charge it fast, i have to use other charger?
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You don't have to use a different charger. Just use the bundled charger but uncheck Fast Charging, then it will charge normally.
but it still charges fast with the fast charging box unchecked... in ~1h its full.
or is it just me?
bogdan_wrc said:
but it still charges fast with the fast charging box unchecked... in ~1h its full.
or is it just me?
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Yes, as I have mentioned earlier, it still charges relatively fast without Fast Charging.... 0% to 100% for me it's under 2hrs, never really timed it.
Charger provides 2 A at "normal" charging, battery capacity is about 3 Ah.
So in theory, 1,5 hours are suffient to charge the device in "normal" mode.
In practice, it should be about 2 hours for a full charge.
Fast charging poses a slightly higher burden on the battery, that's why Samsung gives us the choice to select whether we like that or not.
(Would be just nice if Samsung gave as the choice of selecting if we wish to have Knox or Region Lock, too.)
But as we've got a changeable battery, I don't care too much.
I went back to the slow charger for overnight charging and battery life has been pretty darn good. When I use the fast charger it says it gets to 100 quickly but I feel it drops down way faster. Anyone else feel this way?
yeah, same happened with the note 4. I only use the fast charger when i need a quick charge. I use my old note galaxy tab s regular charger overnight.
Sent from my Moto X Pure Edition
Yeah. Fast chargers are great (the one included with MXPE is superb) but they're not meant for overnight-leave-your-phone-on-the-charger-for-6-or-7-hours-while-you-sleep type charging. Technically, the less you leave your phone on ANY charger after it reaches 100% the better it is for your battery.
EdCarden said:
Yeah. Fast chargers are great (the one included with MXPE is superb) but they're not meant for overnight-leave-your-phone-on-the-charger-for-6-or-7-hours-while-you-sleep type charging. Technically, the less you leave your phone on ANY charger after it reaches 100% the better it is for your battery.
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This used to be true, but I thought it's been debunked with current battery technology. Recent source anywhere?
No source... IMO. (And the fellow XDA members that replied to this thread)
stu5797 said:
No source... IMO. (And the fellow XDA members that replied to this thread)
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He was asking for the source saying it is better to disconnect your phone once it gets 100% battery...
It's been proven it has no ill effect over time, and after charging to full it will stop charging until it discharges enough to need a trickle charge, at which point it will trickle back up to 100% and repeat the process.
If you have ever had a battery pack shut itself off after charging your phone to 100%, it's because it finished charging and didn't discharge quickly enough before the battery pack shut off.
Sent from my XT1575 using Tapatalk
I never use my rapid/turbo/quick charger (or whatever it's called). I only use the regular old overnight charger. I get great battery life. I know for a fact that heat is bad for all electronic components including batteries as can be read about in numerous articles on the subject. However, I also wonder about rapid charging to 100% why would the charge not last as long? Unless something that is reading the battery capacity is not accurate when the battery has been rapidly charged?
I don't have any scientific evidence. I just find I get better battery life using the old charger and noticeably worse battery using the rapid charger
I use the rapid charger and the battery life is the same with or without it.
EdCarden said:
Yeah. Fast chargers are great (the one included with MXPE is superb) but they're not meant for overnight-leave-your-phone-on-the-charger-for-6-or-7-hours-while-you-sleep type charging. Technically, the less you leave your phone on ANY charger after it reaches 100% the better it is for your battery.
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I agree with this, my phone was on 15% and I was about to fall asleep so I left it plugged in for about 9 hours, and it was almost dead with 2hrs SOT and 5 hours after being unplugged. But if I unplug it when it's at 80-90% it lasts me almost all day and into the night.
Sent from my XT1575 using Tapatalk
razieltov said:
I use the rapid charger and the battery life is the same with or without it.
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Same here. Rapid charge is awesome, and my battery life is very good as a business user.
I agree that fast charging is great for a temporary quick charge but not good using it to get your phone to 100%
Hello,
I am doing an experiment since few days ago. I noticed that if you disable the Fast Charging, and (most importantly) use a proper, thick 2A USB cable (I use a Kindle Fire original cable) then the battery lasts around 15-20% longer.
How to recognize that you got a proper USB charging cable ? With fast charging disabled and the battery empty, the phone should tell you that there are around 2 hours until full (instead of the usual 7 hours or so with fast charging disabled). That's when you know that you are using the proper cable. I bought a original Kindle Fire cable from Amazon and that is very solid, much thicker than the standard cable. See attached screenshot. With the standard cable this seems to be a hit and miss, you sometimes get the 2 hours message and sometimes the 7 hours message.
I repeated the experiment 3 times and each time I got significantly better battery life than before.
You may want to try it to see if it works for you.
PS: Attached is my latest battery life screenshot (APC8 firmware), which is the third charge since the experiment. 2 days 6 hours of stand-by with 5h SOT on a mix of 80% Wi-Fi, 20% 4G with nothing disabled (even Bluetooth is permanently connected to the LG smartwatch). Almost no videos played, only web page browsing which is quite demanding on battery.
Look if new software update is possible.
Yeah, I noticed that my battery life was worse when I used a ****ty 1 Ah Sony charger when I displaced the original Samsung charger. It took about 3 hours to charge it up to 100%, but then I noticed that the battery life would be worse than before. I found the original charger again, and battery life is back to being good again. I never use fast charging, unless it's in the middle of the day and I'm heading out or something.
None of the things mentioned above should (technically) have any impact on battery life once unplugged? I mean, stored electricity is stored electricity, so if someone QUALIFIED could give an explanation here, it would be cool.
Nothing new, I've always noticed that if I charge the phone with the original charger and fast charging disabled it will last much longer.
https://www.amazon.com/Amazon-Kindle-Micro-USB-Cable-Tablets/dp/B006GWO5NE
This cable? Which AC adapter do you use?
None of this solutions should impact battery life Oo. Energy is energy, no matter where it comes from?!
Would be nice, if someone qualified could tell us more..
Do you have the newest android version installed?
By the way, I only charge with original charger and cable, fast charge disabled (battery life is longer?!)
Battery life depends on how well you follow charging & discharging cycle. I usually fully discharge my battery (so that phone will shut down by itself after dropping below 1% charging), then charge it fully keeping it switched off & then use it.
I always had far better battery life than most people complain about.
BTW, I also tried charging battery keeping phone switched on at 10-15% charge remaining, battery definitely performed weaker for my use.
So that confirmed my theory based on my usage over last 7 years..
thegame2388 said:
https://www.amazon.com/Amazon-Kindle-Micro-USB-Cable-Tablets/dp/B006GWO5NE
This cable? Which AC adapter do you use?
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Yes, this is the exact cable I am using. A bit expensive, but for me it was the only cable that consistently worked at 2A over time.
J.Biden said:
I mean, stored electricity is stored electricity, so if someone QUALIFIED could give an explanation here, it would be cool.
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BigDoun2011 said:
Would be nice, if someone qualified could tell us more..
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I wonder if Qnovo is qualified enough ? Their technology is employed in many charging solutions. Here is what they say:
"Add fast charging - it gets noticeably worse. It turns out that the simple way batteries are charged today causes most of the damage that leads to shorter daily battery life and reduced lifespan."
Cst79 said:
Yes, this is the exact cable I am using. A bit expensive, but for me it was the only cable that consistently worked at 2A over time.
I wonder if Qnovo is qualified enough ? Their technology is employed in many charging solutions. Here is what they say:
"Add fast charging - it gets noticeably worse. It turns out that the simple way batteries are charged today causes most of the damage that leads to shorter daily battery life and reduced lifespan."
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So you're saying that Kindle Fire cable extends battery life? Isn't 100% battery life from one cable the same as 100% battery life from another cable? Energy is energy.
thegame2388 said:
So you're saying that Kindle Fire cable extends battery life? Isn't 100% battery life from one cable the same as 100% battery life from another cable? Energy is energy.
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In no way I am saying this. I am just saying that you need a cable that reliably supports 2A charging, so the charger shows 2 hours to full instead of 7 hours to full, even with fast charging off.
Cst79 said:
In no way I am saying this. I am just saying that you need a cable that reliably supports 2A charging, so the charger shows 2 hours to full instead of 7 hours to full, even with fast charging off.
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Ah okay. I went ahead and bought one!
It ' also the logical thing. With fast charging , the battery holds less charge than the "normal . " He just spoke in various forums of this.
Anyway , great idea.
How to maintain max battery life span (reliable source):
Perform shallow discharges. Instead of discharging to 0% all the time, lithium-ion batteries do best when you discharge them for a little bit, then charge them for a little bit. The table below, from Battery University, shows that discharges to 50% are better for your battery's long-term life than, say, small discharges to 90% or large discharges to 0% (since the 50% discharges provide the best number of cycles-to-usage ratio).
·Don't leave it fully charged. Similarly, lithium-ion batteries don't need to be charged all the way to 100%. In fact, they'd prefer not to be—so the 40%-80% rule you heard is a good guideline. When possible, keep it in that range to prolong its life as long as you can. And, if you do charge it to 100%, don't leave it plugged in. This is something most of us do, but it's another thing that will degrade your battery's health. If you need to charge it overnight, use something like the Belkin Conserve Socket to stop it from charging after it's full.
·Fully discharge it once a month. This may seem contradictory, but hear us out. While lithium-ion batteries shouldn't be discharged regularly, most modern batteries are what's known as "smart batteries", which means that they can tell you how long you have until your battery dies (e.g. "2 hours, 15 minutes remaining"). This feature can get miscalibrated after a lot of shallow discharges. So, manufacturers recommend fully discharging your battery once a month to make sure this stays accurate.
Cst79 said:
In no way I am saying this. I am just saying that you need a cable that reliably supports 2A charging, so the charger shows 2 hours to full instead of 7 hours to full, even with fast charging off.
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But you stated that it increases battery life.
thegame2388 said:
So you're saying that Kindle Fire cable extends battery life? Isn't 100% battery life from one cable the same as 100% battery life from another cable? Energy is energy.
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What he's saying is that a slower charge equals a longer lasting battery between charges.
But maybe that doesn't apply to Li-ion batteries, according to this link here.
Outbreak444 said:
What he's saying is that a slower charge equals a longer lasting battery between charges.
But maybe that doesn't apply to Li-ion batteries, according to this link here.
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You can try it for yourself (if you have an S7/Edge) and report the results here. I posted my results, I'm not an expert, I just tried this. I also tried the 7-hour slow charge (with a different charger) and it didn't work as well as the 2-hour charge. The 2 hour charge seems to work best.
Yeah, If you use fast charging the battery dies a little bit quicker. I recommend fast charging if you are in hurry.
I only use fast charge when I'm in hurry.. Nice feature! I try to charge my phone between 25-80%...
p2kin said:
Battery life depends on how well you follow charging & discharging cycle. I usually fully discharge my battery (so that phone will shut down by itself after dropping below 1% charging), then charge it fully keeping it switched off & then use it..
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Worst thing you can do for the lifespan of an Li battery.
meyerweb said:
Worst thing you can do for the lifespan of an Li battery.
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I disagree, even though it switches off itself, it still has charge, don't go by it says 1%.. so it's not fully discharged... besides my method served a good battery life to me over the years with earlier phone models
Does anybody else's battery drain quick?
Marshmallovv said:
Does anybody else's battery drain quick?
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Yes but it depends on the charge and discharge. If I charge my phone for a couple of hours (even with the turbo charger) it drains less slowly.
Sometimes I get stuck charging at day 88% and I have to let the battery door to recalibrate. It seems like there are battery problems and I may send in for support (along with ghost charging that occurs when phone gets cold)
I have noticed battery last longer with normal charge (i.e OUT 5V - 2.0A) than Turbo Charge, I don't know if I'm the only one but you may try using normal charge rather than fast charge just for the sake of comparison
siredux said:
I have noticed battery last longer with normal charge (i.e OUT 5V - 2.0A) than Turbo Charge, I don't know if I'm the only one but you may try using normal charge rather than fast charge just for the sake of comparison
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A normal charger takes 3-4 hours on my phone. What is your experience?
bfridman said:
A normal charger takes 3-4 hours on my phone. What is your experience?
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I'm using an OEM Samsung charger with INPUT 100-240V ~ 50/60Hz and OUTPUT 5V - 2A. Phone takes around 2.5hrs from 10-15% to 100%. It is not the best I know but in my very personal experience it works better for me
I was looking for modules to enable quick charge for Mi A1, but all I found was the mistake Xiaomi made during Oreo beta. Is there any modules to enable quick charge for Mi A1, or someone to develop a module using magisk? I've installed Magisk Manager to install Gcam, that's what made me curious. Correct me if I'm wrong in any statement!
Quick charge is generally not a good idea because it lowers the lifespan of the li-ion battery. The stock 10W (2A) charger will charge the battery at 1.5C rate which is already above the recommended standard 1C.
If you are referring to the Qualcomm's Quick charge technology... No.... Except for the obvious kernel and android changes there are also several hardware changes that need to be done for it to be enabled. Also given that 625 is with QC3 you won't really notice that much of a decrease of charging time. We still have pretty good charging times and given that the battery is only 3K it is really not that much of a deal. In the end you'll have 10-15min faster charging. Also at the end of the charging cycle (around 90%) QC is lowered to an ordinary charging, so for small batteries like ours it doesn't really have that much of a use. Also given that our battery is not easily changeable, QC and all types of faster charging lowers the lifespan of the battery significantly and it can go down in less than two years. If it is subjected to regular higher temperatures(>40 degrees Celsius it will start to form copper inside of the battery and will increase its self discharge significantly) it will go down in an less than an year.
Some custom kernels - like moun kernel - have fast charge enabled.
Speed up is not rly high.
Roadwuzel said:
Some custom kernels - like moun kernel - have fast charge enabled.
Speed up is not rly high.
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Thanks, I'll look into it!
Quick Charge cannot be enabled( or shouldn't be ) on MI A1
Firstly let me clarify, I'm using RR ROM which has Moun Kernel by default, it has USB Fast Charge which is not to be confused with Qcom Quick Charge because it means it will Fast Charge( @10watts ) when on USB, that is plugged on a computer. On Stock ROM it charges very slowly when on USB.
Talking about Qcom Quick Charge, though sd 625 supports it, other hardware such as the battery isnt built to support higher voltages which can potentially damage the phone.
So no Quick Charge on MI A1
barrack1 said:
Quick charge is generally not a good idea because it lowers the lifespan of the li-ion battery. The stock 10W (2A) charger will charge the battery at 1.5C rate which is already above the recommended standard 1C.
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MiA1 has 3000mAh and supplied [email protected] charger gives 2A only! (I actually do get 2A charging up to 80% SoC).
Therefore, the MiA1 charging is at 2/3 = 0.67C and NOT 1.5C as you state.
For 0.67C, the time for 70% charging is 0.70/0.67 = 1.045hr = 63mins, which I'm getting in practice.
For 1.5C, 70% charging will be in 0.70/1.5 = 28mins!! Not just possible. Nobody, who tried fast charging using higher than 10W charger, has reported anywhere except slight decrease in charging time (for 70% charge).
The LiPo Battery in MiA1 is BN31. There may be a max charging current limitation circuit in BN31. I read somewhere (lost the reference, unable to find again) that 2.2A is the max limit.
In that case we get 0.73C and time for 70% charge will be 0.7/0.73 = 58mins. This HAS been reported using [email protected] at 3A. (BN31 allowing only 2.2A).
Add on Update:
There is one report on slightly faster charging of BN31. The max charging current is estimated to be 2.485A that is at 0.828C.
MiA1 got 0-100% charged in 92mins using One Plus' Dash Charger (not the charger provided which charges at 0.67). This is reported by TelecomTalk.
This is 24% faster than normal.
manabsac said:
MiA1 has 3000mAh and supplied [email protected] charger gives 2A only! (I actually do get 2A charging up to 80% SoC).
Therefore, the MiA1 charging is at 2/3 = 0.67C and NOT 1.5C as you state.
For 0.67C, the time for 70% charging is 0.70/0.67 = 1.045hr = 63mins, which I'm getting in practice.
For 1.5C, 70% charging will be in 0.70/1.5 = 28mins!! Not just possible. Nobody, who tried fast charging using higher than 10W charger, has reported anywhere except slight decrease in charging time (for 70% charge).
The LiPo Battery in MiA1 is BN31. There may be a max charging current limitation circuit in BN31. I read somewhere (lost the reference, unable to find again) that 2.2A is the max limit.
In that case we get 0.73C and time for 70% charge will be 0.7/0.73 = 58mins. This HAS been reported using [email protected] at 3A. (BN31 allowing only 2.2A).
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You're right that the stock charging rate is 0.67C which is a very moderate charging rate. No idea why the battery still heats up noticeably sometimes during charging. There was a change in the charging icon I think for the Oreo update which gave the erroneous impression that fast charging (>10W) was supported and people started (wrongly) reporting decreased charging times fueling the myth.