Phone starts charging from 20% - Xiaomi Redmi Note 4 Questions & Answers

So when i plug my phone into charger after fully consuming my battery. The phone starts charging from straight 20/30%. Even though I made sure I plugged my phone with 0% battery. Can someone please help me out?

KillerKarnage said:
So when i plug my phone into charger after fully consuming my battery. The phone starts charging from straight 20/30%. Even though I made sure I plugged my phone with 0% battery. Can someone please help me out?
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Always charge your phone when it falls to about 20%.
Never let your battery fall to 0%. It ruins your battery.

Noter2017 said:
Always charge your phone when it falls to about 20%.
Never let your battery fall to 0%. It ruins your battery.
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I know those tips and tricks but it was for test purpose. I usually don't let my phone go below 20% before charging.

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[Q] Battery discharging.

Hi,
My battery seems to discharge while charging. It will never reach full charged(100%). When it hit 94% or so, it will start to discharge. Both charging thru USB or wall plug give the same result. Anyone encounter such problem and found a solution? Please share with me.
If i remember correctly the battery should charge to 100% then discharge itself to 90% then recharge so you don't overload it
Maybe it was discharging to 94% when you saw it
erilis said:
If i remember correctly the battery should charge to 100% then discharge itself to 90% then recharge so you don't overload it
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+1. It's normal.
erilis said:
If i remember correctly the battery should charge to 100% then discharge itself to 90% then recharge so you don't overload it
Maybe it was discharging to 94% when you saw it
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Nope, that is definitely not the case. It was charging right infront of me, it never reach 96% let alone 100%.
The strange thing is that sometime it does charge to 100% and the green LED went off. This occurrence is like once in every 10 charges or so.
I had the same problem, I returnedit to my carrier and they gave meanother one. This one doesn't have that problem but mine has WiFi and Bluetooth issues now. I suggest you talk to your carrier
Sent from my X10a using Tapatalk

charge led not blinking when done

Hi,
Got my 101 yesterday and i charged it directly on the power adapter.
I charged it like 17hours but no blinking led?
It all runs well and i think it is charged enough, anybody got the same issue?
Greets
My 70 will only blink if it is turned on while charging, otherwise it won't.
What do you mean, while it is charging or when it is done charging and turned on?
If i charge the 70 when it is turned off, it imediately turns itself on and stays on. When it has fully chrarged the led will flash. However if i put it on charge and it turns itself on, if i then turn it off and leave it charging the led never flashes when it is charged.
Modern Li-Ion battery charge regimes are complex. They will charge until full then turn off until the charge falls below a certain level, then start charging again. So if you happen to look at your device at they wrong time it might not show fully charged because it is part way through the wait cycle. This is done to prolong battery life - it stops the battery from being cooked. You can bump charge a li-on battery to get more juice it it, but that shortens battery life considerably.
Also, it is possible that your battery meter need calibrating. Every 30 days or so let your device run right down before re-charging - this should re-calibrate the meter.
Thanks
I did discover that he only blink when turned on, just what you guys telling here.
Thanks for the reactions
bufflehead said:
Modern Li-Ion battery charge regimes are complex. They will charge until full then turn off until the charge falls below a certain level, then start charging again. So if you happen to look at your device at they wrong time it might not show fully charged because it is part way through the wait cycle. This is done to prolong battery life - it stops the battery from being cooked. You can bump charge a li-on battery to get more juice it it, but that shortens battery life considerably.
Also, it is possible that your battery meter need calibrating. Every 30 days or so let your device run right down before re-charging - this should re-calibrate the meter.
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Whats bump charge?
wimmetje said:
Hi,
It all runs well and i think it is charged enough, anybody got the same issue?
Greets
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Somewhat same issue, battery charge light NEVER blinked, had Archos 32 for 2 weeks on 2.0.71. The charge would never reach 100%, it would stay at 99% for hours, all day, just could not find that 100% mark and switch to status "charged". When I would wait at 99% for an hour or more, when unplugged, the meter would say 100% immediately after disconnecting it. Maybe it was cycling or doing something battery related, but I doubt it in light of upgrading to fw 2.1.2 and now it charges to 100% without an issue and the power led blinks. Looks like they fixed that bug, or at least it is fixed for me now.
Does anyone have trouble with the Archos 70 not charging at all? This has happened a few times now, I've put it on charge overnight and when I check in the morning the battery is at no charge.

Re: Battery Drain While Charging

Re: Battery Drain While Charging
Has anyone else experienced this?
This is the first time I've had this happen to me....
Sometimes while charging my phone....I'll leave it idle for maybe an hour, and when I go to check my messages, I notice I've lost 10% of my charge while the phones "charging."
Eugers22 said:
Has anyone else experienced this?
This is the first time I've had this happen to me....
Sometimes while charging my phone....I'll leave it idle for maybe an hour, and when I go to check my messages, I notice I've lost 10% of my charge while the phones "charging."
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Are you charging using the stock charger? USB cable?
That sure sounds like a bad charger... or you have some kind of hardware short? My phone only loses about 10% in 7-8 hours. I can't imagine it on a phone that is plugged in and charging.
I read somewhere that once the phone reaches 100% it discharges slightly in order to protect the battery. My phone drops down to 95% after it reaches 100% then charges back up to 100% again.
Robyna2010 said:
Are you charging using the stock charger? USB cable?
That sure sounds like a bad charger... or you have some kind of hardware short? My phone only loses about 10% in 7-8 hours. I can't imagine it on a phone that is plugged in and charging.
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I think it may be a bad charger.....Because if I leave my phone idle on the home charger (It's the oem one) it will eventually lose battery power.
But on a sidenote, I have my phone plugged into my usb right now and it is charging appropriately. But whenever I use the phone to text, or whatnot, it either stays charged at the current percentage, or it slowly loses power (albeit 1-2% every 10 minutes)
I've never had any of these problems before
ive experienced this a couple times. i charge it over night and when i wake up in the morning its at like 96%. when that happens i just unplug it, and plug it back in and eventually charges to full and it stays that way. i dont know why that happens, and it happens sporadically so i can't pinpoint the exact cause
rac1974 said:
I read somewhere that once the phone reaches 100% it discharges slightly in order to protect the battery. My phone drops down to 95% after it reaches 100% then charges back up to 100% again.
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This is the norm for me.
I am experiencing a worse version of this problem... I no matter whether I plug my phone into the wall charger that came in the box, or via usb, it actually loses charge while it is "charging". I have had it completely drain the battery while on charge. I've killed all applications, and the problem still exists. The only way around this is to turn the phone off completely while it is charging- which is something I feel I should not have to do. Not found a solution online yet...
PDA : I9100XWKE7
PHONE : I9100XXKE4
CSC : I9100XEUKD1

Battery only charges to 99%

When I charge my phone it only charges to 99%. I'll leave it in for a while, come back and it's only at 99%. Either charging in the wall, or on the computer. It used to make it to 100% then all of a sudden it just stays at 99% regardless how long it charges. So the charging light always stays on and never lets me know when it's fully charged.
Any idea why?
Thanks.
Mine does that too once in a while, randomly.
But the Sensation would do that to randomly.
Dunno why.
Battery is strange...
I get that too. But eventually it will get to 100%. There has been times where it was charged to 100% then suddenly drop to 99% even though it still plugged in.
Did you get your phone recently? I'm thinking its because the battery needs to be conditioned.
Mines always does that, as soon as I unplug it it jumps to 98%. Im hoping ARHD fixes this
I've installed Battery Widget (from Market) and it reports 100%. I plug in every night and in the morning it reads 100%.
zellroot said:
Mines always does that, as soon as I unplug it it jumps to 98%. Im hoping ARHD fixes this
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ARHD, what is that?
nguyendqh said:
ARHD, what is that?
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New Amaze Android Revolution HD ROM by mike1986?
This happens with many devices. I have not seen this yet on my Amaze but I am sure at some point it will happen. Try turning the phone off and charging it to 100% then power it on also try running the battery all the way down and letting it charge to full UNINTERRUPTED over night. If those dont help you can always try another rom with better battery management or go into a t-mobile store and get a battery replacement if your battery is still under warranty. Hope this helps
HTC does this on a lot of phones. It is a safety default to keep the battery healthy and safe. I had this issue with the Evo. The only way to fully charge a battery is to have other a wall charger or a SBC kernel.
its the best sense rom known to man in my opinion.
daswahnsinn said:
HTC does this on a lot of phones. It is a safety default to keep the battery healthy and safe. I had this issue with the Evo. The only way to fully charge and battery is to have other a wall charger or a SBC kernel.
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My stock battery is 3.8v, and it only goes to 100% if I charge it in the phone. If I use my wall charger, it shows up at 99% when I put it back in my phone. I have two aftermarket batteries that show about 98% when charged from the wall. I am thinking that the phone charging circuit is set for 3.8v, and might possibly overheat the aftermarket batteries (3.7v). I saw one review that said these batteries melted the top of his SIM card. I'm not planning on trying that; I use the stock, charging every night, and swap the spares in if I run out of charge during the day.
I just remember hearing the same stories when I had my evo. You could charge for hours and unplug it and it would almost immediately drop to 99 or 98. So my previous statement may or may not help.
I charged mine over nite and woke up to it being 99%, left it for another hour or two and it hit 100%. I would say to leave it a little longer to get that last 1%.
Sent from my HTC_Amaze_4G using XDA App
For anyone who is running quicksense, if you want better battery life, charge your phone completely and go into recovery > Advanced> wipe battery stats. And done!
Sent from my HTC Amaze 4G using XDA App
RZJZA80 said:
I charged mine over nite and woke up to it being 99%, left it for another hour or two and it hit 100%. I would say to leave it a little longer to get that last 1%.
Sent from my HTC_Amaze_4G using XDA App
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I find that if my phone its powered off while charging, it shows 100. If powered on, it shoes 99.
Sent from my Dell Streak 7 using xda premium
this is normal for lithium ion batteries...it also depends how the manufacturer perceives the battery...some manufeacturers say that your phone is 100 percent but it might only be around 95-98...overcharging lithium ions are bad...also some manufacturers say you have 10 percent left while you might actually have 15 or maybe to percent left...this is a fail safe method to shut off the phone and keep the battery from draining completely WHICH IS REALLY REALLY BAD FOR LITHIUM IONS...OVER CHARGING THE BATTERY IS BAD TOO...perhaps htc's thresh holds are a little different and actual to the real battery life.
also not a good idea to use your phone or any lithium ion device while its charging
powering off your phone to charge it overnight is the best idea to give you lithium ion a long life but this is not practical. this is why it says 100 percent when you turn off the phone and 99 when you're phone is off....it confuses the phone: " A portable device must be turned off during charge. This allows the battery to reach the set threshold voltage unhindered, and enables terminating charge on low current. A parasitic load (which means using phone or turning screen on while its charging) confuses the charger by depressing the battery voltage and preventing the current in the saturation stage to drop low. A battery may be fully charged, but the prevailing conditions prompt a continued charge. This causes undue battery stress and compromises safety."
http://batteryuniversity.com/learn/a..._ion_batteries
http://forum.xda-developers.com/showpost.php?p=19651965&postcount=7

Battery Charging Issue

I don't know if some of you have the same experience but here is my issue:
I usually charge my phone when I go to bed at night and unplug it in the morning. In the recent a few days, I woke up and found out my GS3 is 99% charged and battery status is still charging after an overnight. I have the Battery Indicator Pro app on it and it keeps the log of all the changes of the battery, so I went to the log and saw that the battery was full charged at e.g. 5:32AM at 100% and CHARGING status, then at 6:15AM it was 99% and CHARGING. So I turned off the phone, and leave it charging when its off and turned it back on after 15 minutes, after a while it showed as FULLY CHARGED at 100% .
I think it was very interesting and would like to know if it's the battery problem or the phone problem, if there is anyone have the same issue.
THANKS!!
popboywei said:
I don't know if some of you have the same experience but here is my issue:
I usually charge my phone when I go to bed at night and unplug it in the morning. In the recent a few days, I woke up and found out my GS3 is 99% charged and battery status is still charging after an overnight. I have the Battery Indicator Pro app on it and it keeps the log of all the changes of the battery, so I went to the log and saw that the battery was full charged at e.g. 5:32AM at 100% and CHARGING status, then at 6:15AM it was 99% and CHARGING. So I turned off the phone, and leave it charging when its off and turned it back on after 15 minutes, after a while it showed as FULLY CHARGED at 100% .
I think it was very interesting and would like to know if it's the battery problem or the phone problem, if there is anyone have the same issue.
THANKS!!
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I have had that problem before. But now for me it will say fully charged then after i take it off the charger it drops to 98%.
em2drvr03 said:
I have had that problem before. But now for me it will say fully charged then after i take it off the charger it drops to 98%.
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I've had the same problem with taking my phone off the charger and found bump charging helps (remove the phone when at 100%, let it drop and then re-plug it in).
As for not charging to 100%, is there something keeping it awake? background process? Screen not shutting off? Sounds like something is keeping the phone from a sleep cycle.
stevesprivateaccount said:
I've had the same problem with taking my phone off the charger and found bump charging helps (remove the phone when at 100%, let it drop and then re-plug it in).
As for not charging to 100%, is there something keeping it awake? background process? Screen not shutting off? Sounds like something is keeping the phone from a sleep cycle.
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My friend with a nexus s tells me that his phone fully charges at 96% so it saves that battery from over charging. idk if thats whats happening here.

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