Related
Before we get an update (well if it will sort the problem...) I wonder if we could collect the best tricks and tips how to save battery life on Desire? Some of you have experience of apps and widgets that drain the battery fast, then we have the usual (turn of 3g, wifi, avoid white backgrounds etc).
What you think? Lets share what we found out!
- Turn off any auto-update for anything unless you really (really) need them
- Even if you really (REALLY) need auto-update, set auto-update period to longer interval (why do you want to get weather update every hour? just an example)
- Again, review your auto-update apps/widgets!!!
- Turn off GPS. Turn this on only when you are going to use sat nav app
- Turn off Wi-Fi. It is obvious, turn it on when needed and dont forget to turn off!
- Turn off Bluetooth, unless you want to use it (headphone???)
- Don't use task killer of any kind unless you really (REALLY) know what you are doing. Let Android OS take care of killing those inactive apps, Android is designed for this.
- Set your screen brightness as low as possible your eyes could use. Full brightness is really not necessary unless you want to show off to iPhone users
- Limit your home screen widgets, think if you really want to use to have "quick look". Otherwise you can just put icon shortcut, one click and there you go!
- Choose AMOLED friendly apps. Meaning, avoid any white or extreme bright UI / background colors. For example: The XDA Android app created by Tapatalk is AMOLED friendly compared to browsing via web, because it uses black color background. Find apps that you can customize the color
- Choose AMOLED friendly themes. I would replace the default HTC big clock that uses white color with other that uses black color.
That's for now
The first charge is important for the battery and your device too. The battery has to be charged long time, 12-16 hours first time to use all the chemicals it has. Some says that the polymer batteries don't need the first big charge but specialist's says it's good practise to do it with the LiPoly batteries too.
Note: it's best practise to wait until the battery reaches it's critical level (around 5%) before you start the first big charge. The first charge also calibrates your devices power meter.
Mastoid said:
The first charge is important for the battery and your device too. The battery has to be charged long time, 12-16 hours first time to use all the chemicals it has. Some says that the polymer batteries don't need the first big charge but specialist says it's good practice to do it with the LiPoly batteries too.
Note, that you have to wait until the battery reaches it's critical level (around 5%) before start the first big charge. The first charge also calibrates your devices power meter.
Click to expand...
Click to collapse
Is this really really true? I hopefully will be getting a new Desire tomorrow (for exchange) and when I received my previous one, I didn't drain the battery and then charge for 12 hours. I would not mind doing it if it really improves the battery life but I've seen conflicting articles/opinions about this whole 12 hours charge thing
From HTC FAQ
http://www.htc.com/www/faqs.aspx?p_id=312&cat=80&id=127114
When I first receive my phone, do I need to charge the battery?
Your phone ships with a partially charged battery so it's suggested you charge your battery fully before first use. The battery is fully charged when the notification LED turns green.
It is recommended to charge the battery for 8 hours the first time to ensure that the battery has had time to recharge.
Note: It is recommended that you only use the charger and cable provided in the box your phone was shipped in.
Click to expand...
Click to collapse
HoneyBeFly said:
Is this really really true? I hopefully will be getting a new Desire tomorrow (for exchange) and when I received my previous one, I didn't drain the battery and then charge for 12 hours. I would not mind doing it if it really improves the battery life but I've seen conflicting articles/opinions about this whole 12 hours charge thing
Click to expand...
Click to collapse
Thanks for that although if I remember correctly on the Desire quick quide it says I need to charge it for 3 hours for the first time. Regardless, it insinuates that I shouldn't drain the battery before the first charge
Please try and read about how a li-ion battery works.
NiCd and NiMH need longer (and slow) initial charge(s). Because indeed the battery still needs to form. Usually 5 charges, but cheap ones reach max capacity after eg 15 charges.
This is NOT the case for li-ion batteries. They have max capacity as soon as they roll out of the factory. And they start degrading from that point.
Keeping the Desire charged longer has no use. Because as soon as the battery is full, the internal chip will cut off the charge. So you can just as well plug out your charger.
There are so many voodoo stories about batteries, even from manufacturers. Probably because each battery chemistry need different handling. Whereas li-ion batteries are actually much more easy. They don't last too long though :/
updates
Every now and then you get a notification of available updates to apps... anyone knows how this works and if it does drain the battery? Is there a way to turnthe update check off?
Can you try this:
http://androidcommunity.com/forums/f12/how-to-turn-off-application-upgrade-check-12723/
Let us know the result.
jannen said:
Every now and then you get a notification of available updates to apps... anyone knows how this works and if it does drain the battery? Is there a way to turnthe update check off?
Click to expand...
Click to collapse
Found this on another forum, I have done this a few times myself (do it whenever i flash a new rom because i always clear battery stats, can't hurt). Have found that it does top it up a fair bit. Before doing this i find my desire will drop to +-93% straight off the charger, however this keeps it 100% longer and i actually get to see the numbers 99-94%
Worth a go in my opinion because it only takes 5 mins of your time and can't hurt the phone... So any minor gain from this process is a win...
Hi *******, I understand your concern regarding battery life on your Nexus One device. The following steps should significantly extend the battery life on your phone. Please connect the phone to the charger with the phone powered on, and allow the phone to charge until the notification LED is green, indicating the device is fully charged. Disconnect the phone from the charger, and power it off. Reconnect the phone to the charger with the phone powered off, and allow the phone to charge until the notification LED is green. Disconnect the phone from the charger and power it on. Once the phone is powered completely on, power it off again and reconnect it to the charger until the notification LED is green. Disconnect the phone, power it on, and use it. You need to use this sequence only once. If the issue of battery life on our phone persists, I recommend you contact our HTC accessory department directly.
Mod Edit: There have been a few reports of damaged batteries by people on this thread. There is a chance that this MAY damage your battery. Please bear this in mind if you choose to follow the instructions above.
supportyou and the app!
Sent from my HTC Desire using XDA App
Thanks for that. At what point do you wipe battery stats? After the process is complete?
desire888 said:
Thanks for that. At what point do you wipe battery stats? After the process is complete?
Click to expand...
Click to collapse
Also wondering about this
You should wipe battery stats after its fully green (when powered off) then boot the phone back up.
You only need to do this once
I.e.
Charge till full when powered on
power off
charge till full again
boot into recovery wipe stats
boot and continue to use as normal
It works!!!
That's fantastic!
I read this topic this morning and tried immediately. Since this morning i only lost 4% until now. That's great news!
Thx a lot, man!
Sent from my HTC Desire using XDA App
thanks!!!!
battery usage is much better now!
how do you wipe batt stats?
kmetek said:
how do you wipe batt stats?
Click to expand...
Click to collapse
Via ClockWorkMod recovery
kmetek said:
how do you wipe batt stats?
Click to expand...
Click to collapse
Clockworkmod recovery -> advanced -> wipe battery stats.
Sent from my HTC Desire using XDA App
do i have to repeat that in future again?
vidler said:
You need to use this sequence only once.
Click to expand...
Click to collapse
first post
takes a long time to charge my Desire, but then i'll test this one!
Hope this will make battery life better. I have the same problem as described in first post (drops immediatly from 99% down to 93% )
Can someone suggest me how should I go about doing this if I use multiple batteries?
I'd imagine the phone can only be calibrated to 1 battery. But if I were to use another battery, would I screw up the calibration to the original batteries?
Right now as it is with moderate usage I need 3 batteries to last me through the day. :S
xNavyblue said:
Can someone suggest me how should I go about doing this if I use multiple batteries?
I'd imagine the phone can only be calibrated to 1 battery. But if I were to use another battery, would I screw up the calibration to the original batteries?
Right now as it is with moderate usage I need 3 batteries to last me through the day. :S
Click to expand...
Click to collapse
3 batteries?!
What rom are you using and how exactly are you using your phone?
I have just one battery and it lasts about 2 days with moderate use.
I am using this ROM: (sorry can't post link)
[ROM] Rooted Official HTC Android 2.2 (FroYo) ROM [Market issue fixed]
With my typical usage, I unplugged the phone in the morning from the charger, by the time I knock off from work, I would have left about may be 20%. With stock ROM and a single battery, there is no way that I could last 2 days with one single charge. My main use is web browsing, RSS, Facebook and IM. My estimation of my solid screen time is about 2-3 hours.
So I bought more battery just in case, and played with custom ROMs. I ended up using up a whole battery in 4 hours or so. Definitely something is wrong here. My gut feel is that both the ROM and batteries are suspects. Being a newbie I really need enlightenment.
Is it really needed to wipe the stats? I think I've accidently done this once already... cause the battery life is much better.
since this procedure, my battery stays at 100% since nearly 2 and a half hours now and i did 2 text messeges in between and recently checked the bat about 4 times
this couldnt be possible..
i mean the battery is almost doubled in comparison to how long it lasts before
is this possible??
yes it is possible
Dany0 said:
yes it is possible
Click to expand...
Click to collapse
but how?
i mean in this time the battery would have been dropped to arround 97
and now its still full?
i mean these are stats how are they increasing battery life? the batterylife is given from the cell itself?
Waiting to get my hands on my DHD at Sunday when I return home from my girlfriend. Im just curious if I need to charge it those 12ish hours like I've always done when I've got a new phone, or if batteries is different since my last one.
Thanks!
a full recommended charge by manufacturers is usually 12 - 16 hours, so charge it for 16 hours and then have some fun...
fkofilee said:
a full recommended charge by manufacturers is usually 12 - 16 hours, so charge it for 16 hours and then have some fun...
Click to expand...
Click to collapse
Does that also count for todays smartphones? I mean, I know all Apple Products comes precharged so you dont have to bother with the 12 hours of charging. HTC aint running that path?
I quote a message I've made in the battery life thread:
theboostman said:
Since i use some RC Helicopter with li-po/li-ion that both have the same way to produce energy, I have learned how to use this kind of battery and how to ensure a good battery life/durability.
There is no reason to worry about the battery if you follow those few recommendation (given by a battery producer):
-Your battery has to be charged with a current of 1C max (1C mean 1230mA for a 1230mAh capacity).
-Your battery voltage must not be over 4250mV. If you go over, you may damage the battery and risk random explosion/fire. In normal use, it's better to not go over 4200mV.
If you charge the battery with your phone, you will never be able to go over 4200mV because the charge stop automatically before.
-Your battery must not be under 3300mV. Same risk as above. In normal use, it is better to not go under 3450-3500mV to ensure a good battery durability (numbers of cycle charge/decharge). I think the phone show 0% at near of 3450mV, but never check this cause i never wait my phone to be as close to the death.
-Your battery has to be drain at a current of 10C max, i.e for desire HD , 12.30A (1230mAh x 10).
impossible to reach that current with your smartphone so no worries about burning your cpu with heavy bench.
Whatever you do respecting this will not be harmful for your battery.
Click to expand...
Click to collapse
So don't believe crazy rumor and just follow battery manufacturer recommendations.
charge the phone up to full for first time is just usefull to ensure a good calibration of the battery level in android.
But the battery itself doesn't care about first charging since they already have been charged for the stockage by the manufacturer.
You can check with Currentwidget the current send to the battery. Wait until you have 0mA. This can take 1h after the green light has turn on as the green light seems to occur by voltage mesure and not by current.
this occur every time you charge the battery and then I prefer to check with Currentwidget when the battery is actually full.
It is good to know here that a li-ion battery will reach near than 4200mV before to be full and at this state has to be charged with a current limited Alim. It seems that this is already used by the phone as you can see the current decrease as long you reach full charge.
But as I already mention, it seems that the phone show 100% when a voltage Value is reach. So it is not very accurate to see when the battery is actually full.
After that you can play whatever you want with your battery:
- You don't have to wait that the battery is full discharged to charge. ( In fact it is better to never wait your battery to be empty)
- You can stop the charge before the end.
- You can leave the phone plugged in the whole night cause the phone automatically stop the charge.
Can you use the phone on the first charge?
Yes you can. For battery point of view, no problem.
For android battery level, I don't know if using the phone at first charge can cause more inaccurate mesure but anyway the battery level will be more accurate after some cycle of charge/decharge so don't care about this. Plug the phone and use it!
Very, very detailed. Far more detailed than what I can understand. I'd follow the battery manufacturer recommendations, but HTC doesn't list anything helpful on their website.
The battery is partially charged when shipped. Before you turn on and start using your phone, it is recommended that you charge the battery.
Click to expand...
Click to collapse
..they dont tell you if to charge until simply fully charged, or 12ish hours. Thing is, I read in another topic that the whole point of charging for a long time was back in the "NiCad days"; but does not apply for Li-ion batteries.
Can this be confirmed?
To be more clear:
- optional(but recommended): Charge the battery up to full at first time (about 3h, check with current widget for example)
- never let your battery be empty
- each time you charge, you may charge about 45-60min more when the green light turn on. (you can check with currentwidget or equivalent when the battery is actually fully charged)
Sent from my Desire HD using XDA App
theboostman said:
To be more clear:
- optional(but recommended): Charge the battery up to full at first time (about 3h, check with current widget for example)
- never let your battery be empty
- each time you charge, you may charge about 45-60min more when the green light turn on. (you can check with currentwidget or equivalent when the battery is actually fully charged)
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
Thank you very much. : )
So I simply use CurrentWidget (by which looking on google shows the current mA) and simply waits till it hits 1230mA. Is that how the widget works? If yes, after reaching 1230mA, do I still leave it in for 45-60mins or not?
Sorry if im not getting it right - getting into Android is not as easy as I thought it would be.
No that's not right
Current widget will show you the actual mA consumed by your battery when the phone is un plugged and the actual mA sended to your battery when charging.
This allow you to check when the battery is full.
When you just plug your phone, you will see battery widget show about 500mA and then decrease down to 0mA as long you reach full charge.
When you see 0mA, the battery is full.
You will notice that the green light and 100% status are reached before current widget show 0mA.
This is why you can't trust the green light when charging your phone and have to charge it 45-60 min more when the 100% status/green light is reach
Sent from my Desire HD using XDA App
Oh!!! I get it now! THANK YOU!
Guess I'm just gonna have to deal with turning it on and getting the app. - but probably shoulnd't affect it in any way (the battery that is...) ^- ^
im picking up my new phone tonight then heading out for dinner
i dont think im going to be able to sit there and not turn the thing on and have a play with it
from reading the posts here it sounds like doing so wont cause any damage to the battery it might just screw up the android battery readout
on my galaxy s you could boot into the recovery menu and just wipe the battery memory
cant i just do that with this phone ??
I wouldn't risk it. Wait till you get home, turn it on, download Current Widget also mentioned in this topic, plug in the charger and wait for the app. to show "0mA".
I also couldn't resist turning mine on and ended up with dust on the wrong side of the screen (yes, theres a tiny gap around the screen where it crawls in - lame design) - now im going down for a swap and I wont open the box until I recieved my case for the back and shield for the front+lens.
I'd suggest you to do the same to avoid the damn dust and scratches. Its up to you tho.
Juusuhako said:
I wouldn't risk it. Wait till you get home, turn it on, download Current Widget also mentioned in this topic, plug in the charger and wait for the app. to show "0mA".
I also couldn't resist turning mine on and ended up with dust on the wrong side of the screen (yes, theres a tiny gap around the screen where it crawls in - lame design) - now im going down for a swap and I wont open the box until I recieved my case for the back and shield for the front+lens.
I'd suggest you to do the same to avoid the damn dust and scratches. Its up to you tho.
Click to expand...
Click to collapse
i wont be able to wait that long
if it doesn't damage the battery i dont see the harm
i went and bought a case for it today so the moment i get the phone its strait into a case
Yea, it's not easy to keep the hands off it.
I dont know if it's gonna "damage" it and cause a worse battery life, but it's full potential will first show after a few recharges apparently, it's up to you. Hopefully your cover will actually cover the gaps from dust etc. (unless ofc it's a full-case cover.)
Couldn't wait
Great phone love this big screen
Just need to get home and debadge it
Sent from my Desire HD using XDA App
Hey everyone.
Just wanted to know if charging the tablet almost constantly is a bad thing. I use the tablet a lot every day, so when I'm at 60%, for example, I charge it again while I'm at lunch or doing something else, so that I can keep using the tablet later with full charge available again. I never let my tablet go down to 5%.
Is this bad for the battery in the long run?
Thanks.
Generally, it's best to not allow full cycle recharging...i.e. not fully charge or discharge, it's better for small charge cycles, like 40%<->90%
Some links to help garner some understanding:
http://forum.xda-developers.com/showthread.php?t=2469261
Which provides these links:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
http://www.eetasia.com/STATIC/PDF/200806/EEOL_2008JUN16_POW_TA_01.pdf
http://macomp.ru/wp-content/uploads/2012/04/1607542.pdf
mdamaged said:
Generally, it's best to not allow full cycle recharging...i.e. not fully charge or discharge, it's better for small charge cycles, like 40%<->90%
Some links to help garner some understanding:
http://forum.xda-developers.com/showthread.php?t=2469261
Which provides these links:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
http://www.eetasia.com/STATIC/PDF/200806/EEOL_2008JUN16_POW_TA_01.pdf
http://macomp.ru/wp-content/uploads/2012/04/1607542.pdf
Click to expand...
Click to collapse
That's right. At least for what I know. It says the same on Apple's website about batteries. :good:
So then I guess I'm doing it right, correct?
I charge from 60% to 100% or from 50% to 100% again. Maybe I should do it only up to 90% then.
Sensamic said:
So then I guess I'm doing it right, correct?
I charge from 60% to 100% or from 50% to 100% again. Maybe I should do it only up to 90% then.
Click to expand...
Click to collapse
I only charge to 100% when I am going to be away from a charger for a long time, otherwise I stop at 90%-ish (my battery app announces when it is at 90% and there are kernels which will stop the charge at what you specify), as the links above state, charging to 100% all the time will shorten the lifetime of your battery, this may or may not matter to someone, for example, if you buy a new tablet every year, or you're well-off financially, then you're probably not too concerned with how many years your battery lasts, in which case charging to 100% a lot won't really matter much, since you'll likely own a newer tablet by time the battery does die.
In short, it's up to you and what you want to get out of your battery's lifetime.
I am using the good old 100% and then use until near 0%. I have found that this way the battery lasts longer.
As I am writing i have 43% battery with 5:40h screen time. I am using Greenify btw.
mulperi said:
I am using the good old 100% and then use until near 0%. I have found that this way the battery lasts longer.
As I am writing i have 43% battery with 5:40h screen time. I am using Greenify btw.
Click to expand...
Click to collapse
There are two kinds of battery life. These recommendations are for battery longevity. How long until the battery begins to lose the ability to fully charge.
The article at battery university explains how charging works, and the best way to charge batteries. What you are doing is the opposite of that way. If you think you are going to have your tablet longer than a year, it's worth taking the time to read the articles linked.
There is noting particularly wrong with full charges every time, but there are 'righter' ways to charge.
Sent from my Nexus 7 using XDA Premium 4 mobile app
Is there any kind of battery forming on new nexus7?
I mean i bought nexus 7 and straight from box i rooted,unlocked and installed custom kernel which forbids battery 2 fully charge over 92%...
Should i revert to stock and firstly fully charge my tablet then go to custom kernel or i am good at it right now ? Tnx
ps. (my nexus 7 was on 38% when i put it out of box)
aigaming said:
Is there any kind of battery forming on new nexus7?
I mean i bought nexus 7 and straight from box i rooted,unlocked and installed custom kernel which forbids battery 2 fully charge over 92%...
Should i revery to stock and firstly fully charge my tablet then go to custom kernel or i am good at it right now ? Tnx
ps. (my nexus 7 was on 38% when i put it out of box)
Click to expand...
Click to collapse
Based on what I've read, you'd gain no benefit by reverting to stock and charging to 100%, it MAY or may not effect the internal battery calibration, but it does not affect the lifetime or anything.
Also, these kernels usually have a way for you to change the % at which it stops, usually by cat'ing or changing some value that the kernel reads, you could just cat/echo/change 92% to 100%, and let it charge to 100%, then change it back. YMMV.
mdamaged said:
Based on what I've read, you'd gain no benefit by reverting to stock and charging to 100%, it MAY or may not effect the internal battery calibration, but it does not affect the lifetime or anything.
Also, these kernels usually have a way for you to change the % at which it stops, usually by cat'ing or changing some value that the kernel reads, you could just cat/echo/change 92% to 100%, and let it charge to 100%, then change it back. YMMV.
Click to expand...
Click to collapse
Tnx m8
The worst thing you can do to lithium-ion batteries is let them discharge completely.
Not letting the lithium-ion batteries discharge more than 10% will increase the cycles by thousands we're talking going from 350 cycles to 4000.
So, ideally, you want to charge your batteries (of this type) after a 10% discharge but we all know that's impossible so the best thing you can do is to charge your tablet everytime you can. Even if it has much battery left.
I knew that allready but i didn't know that it is not good to charge battery to 100 till i came to nexus 7 forums I always charged all my devices to 100% and never had a problem with battery
Sent from my LG-P990 using Tapatalk
aigaming said:
I knew that allready but i didn't know that it is not good to charge battery to 100 till i came to nexus 7 forums I always charged all my devices to 100% and never had a problem with battery
Sent from my LG-P990 using Tapatalk
Click to expand...
Click to collapse
You should charge to 100%, there is no problem with that.
On a perfect world you would want to charge everytime the battery hit 90%, this gives the best amount of charge cycles and life time.
However we all know that's not going to happen because the tablet is here to serve our needs and not the other way around so stick to charging it whenever you can.
Great Question!
First let me start off by saying to the person that started this thread that this was a really good question to ask!
Now if you are trying to get the most out of your battery then you could look into installing/flashing a custom kernel that could allow for undervolting which could in theory give your battery more life.
So you all are saying that the best thing to do is to charge up to 90% and never let it get down to less than 10%? Always start charging when the battery gets to like 40%?
One question i have for the Nexus 7 2013. Is it even possible to remove the battery for this tablet or does it void the warranty? Second has anyone purchased a spare battery (if possible) for their Nexus 7 2013? If you did could you post a link to where you got it and let us know how much you paid?...
Great question and thread!
-droidshadow
droidshadow said:
First let me start off by saying to the person that started this thread that this was a really good question to ask!
Now if you are trying to get the most out of your battery then you could look into installing/flashing a custom kernel that could allow for undervolting which could in theory give your battery more life.
So you all are saying that the best thing to do is to charge up to 90% and never let it get down to less than 10%? Always start charging when the battery gets to like 40%?
Click to expand...
Click to collapse
There has been speculation in the franco thread that undervolting could actually hurt battery charge life, due to the CPU having to work harder due to having less voltage, not sure if that has any merit or not.
The reasoning behind the not charging above 90%, and not allowing full-cycle charges is outlined much better in the links I posted than I could do here, also I would be just regurgitating information that is already there for the most part.
40% is just a number I pulled out of air, the best practice is to keep the charge delta as small as possible. So, let's say we charge the device to 90%, it is better to charge it when it hits 80% than it is to wait till it hits 70%, because a smaller charge delta has occurred, so charge often, but if you want the lifetime of your battery to be maximized (lifetime as in the way ezas explained it, i.e. "(...)battery longevity. How long until the battery begins to lose the ability to fully charge"), than try to not charge it to 100%.
Also, it has to be said, heat also affects the battery longevity, that is why I also recommend not charging while a device is in its case. And not leaving it sit on a Qi charger for too long, some cause more heat than others, but heat is a battery's enemy.
droidshadow said:
One question i have for the Nexus 7 2013. Is it even possible to remove the battery for this tablet or does it void the warranty? Second has anyone purchased a spare battery (if possible) for their Nexus 7 2013? If you did could you post a link to where you got it and let us know how much you paid?...
Great question and thread!
-droidshadow
Click to expand...
Click to collapse
It would no doubt void your warranty. As for battery replacements, I have not yet found one, I'm not saying there isn't one to be found, but I have yet to find it, I figure the reason is because they are not yet in demand since the tablet is relatively new and demands for replacement batteries would be too low, obviously and eventually this will change.
droidshadow said:
First let me start off by saying to the person that started this thread that this was a really good question to ask!
Now if you are trying to get the most out of your battery then you could look into installing/flashing a custom kernel that could allow for undervolting which could in theory give your battery more life.
So you all are saying that the best thing to do is to charge up to 90% and never let it get down to less than 10%? Always start charging when the battery gets to like 40%?
One question i have for the Nexus 7 2013. Is it even possible to remove the battery for this tablet or does it void the warranty? Second has anyone purchased a spare battery (if possible) for their Nexus 7 2013? If you did could you post a link to where you got it and let us know how much you paid?...
Great question and thread!
-droidshadow
Click to expand...
Click to collapse
What I said was that, theorically, in a perfect world, you want to charge your tablet when it starts losing charge and ideally never let it get below 90%. This is almost impossible because we use our tablet and we don't want to constantly be charging it so ideally you want to charge it whenever you can.
Hi, I'm currently experiencing some problems with my Redmi Note 8 Pro.
I've had my phone for less than a month, and it's starting to get issues with the battery.
The battery, whether I charge it with the original wall charger, or I use a computer to charge it, or o use an alternative wall charger (that is for slow charge), it can't get to 100%.
It gets stuck at 99% and says, full charge in 2 minutes, even though the 2 minutes have passed long time ago.
I haven't done a full battery drain, and I always try to use a slow charge charger.
I also haven't done a full cycle without using the phone, maybe that's the problem.
But I'm worried, and I need some help, because I got the phone (as I said) less than a month ago, I haven't even payed the first installment.
I'm still within the seller's warranty, but I need some advices to what can I do, because returning the phone to the seller, to make a change, is gonna cost me 15 to 20 days. And I don't have any other phone to use.
Please, if someone can give me some advice, or tell me what to do, it's completely welcome.
Thanks.
And by the way, I'm using the Global 128Gb version, if that helps.
Edit 29/01/2020: I did a full discharge, because I couldn't read the quotes earlier, and I didn't realize how big the problem could be. Now, the phone can't go over 79%.
I didn't expected this issue with my RN8P, but with other phones (cheap noname ones).
A discharge to around 5%, and a full charge without unplugging did the trick for me.
AnonyIsRight said:
Hi, I'm currently experiencing some problems with my Redmi Note 8 Pro.
I've had my month for less than a month, and it's starting to get issues with the battery.
The battery, whether I charge it with the original wall charger, or I use a computer to charge it, or o use an alternative wall charger (that is for slow charge), it can't get to 100%.
It gets stuck at 99% and says, full charge in 2 minutes, even though the 2 minutes have passed long time ago.
I haven't done a full battery drain, and I always try to use a slow charge charger.
I also haven't done a full cycle without using the phone, maybe that's the problem.
But I'm worried, and I need some help, because I got the phone (as I said) less than a month ago, I haven't even payed the first installment.
I'm still within the seller's warranty, but I need some advices to what can I do, because returning the phone to the seller, to make a change, is gonna cost me 15 to 20 days. And I don't have any other phone to use.
Please, if someone can give me some advice, or tell me what to do, it's completely welcome.
Thanks.
And by the way, I'm using the Global 128Gb version, if that helps.
Click to expand...
Click to collapse
When I cannot tell if its some HW related problem with your phone or battery but I am really wondering why you want to do full charges (and/or discharges)? It is known to wear battery way faster. Li-on or Li-po batteries do not have memory effects and it is known to be best to always keep them charge for example between 15-20% and 80-85% trying to never get bellow or above.
This phone has a pretty big battery, that normally should be enough to bring you through a day of normal use (if it does not you may want to check your hungry apps running in the bg) but maybe you are an heavy gamer or use your phone for some heavy usage stuff?
Even then, it would be best to do 2 quick 15 to 50-60% in about 30 mins with QC2 (18W original Wall charger) rather than one unique full charge.
Looking at what you said with slow charging you probably know all of that already, but the faster you charge the battery, even if same %, the faster it will discharge. As odd as it is, remains factual.
I dont know if you ever used an external amperemeter or similar to check what kind of current was actually going through your battery while charging, but if you do you will notice the first % goes way faster to charge than the last few %. The chip dealing with the battery charge, charges slower and slower toward the end because it could damage the battery, when on the opposite it is rather safe to quick charge the % in the middle.
Also you may want to check your alternative 'slow wall charger' to make sure it provides you with a steady voltage current (V). If it is fluctuating too much, it may damage your battery.
If you want to do further research about the subject, there is a note on the RN8PRO Telegram group explaining how to calibrate your battery by deleting some system files (root needed as far as I remember) and having some charges/discharges steps. Personally I have not done it because it requires to go to 100% and 0% a few times, and depleting a Li-ion/Li-po battery completely can damage it irreversibly. They are not meant to be discharged fully period. Now battery should not be completely drained when OS takes the phone off, that said we never know for sure since we cannot change that setting unlike on our windows laptops, but I dont want to take the risk.
When you are stuck to 99% it kind of looks to be the OS not being able to know if the battery is fully charged or not. In that state of things, have you tried to turn off the device without unplugging to see if the off-mode charging screen (the small battery screen with % when you turn your phone off) also remains at 99% or gets to 100% at some point? Because maybe all you need is to restart the phone to make OS aware the battery is fully charged. Could be a SW known/unknown issue/bug to be fixed with future updates for all I know.
But again, I don't think you should fully charge and/or discharge (if you do) your phone when you can avoid it.
Just my 2 cents.
Hope this helps,
Regards,
-=Fxs=- said:
I didn't expected this issue with my RN8P, but with other phones (cheap noname ones).
A discharge to around 5%, and a full charge without unplugging did the trick for me.
Click to expand...
Click to collapse
I tried it, and... it got worse.
Now it can't go over 79%. :c
Thanks for trying to help anyways.
Muad.Dib said:
When I cannot tell if its some HW related problem with your phone or battery but I am really wondering why you want to do full charges (and/or discharges)? It is known to wear battery way faster. Li-on or Li-po batteries do not have memory effects and it is known to be best to always keep them charge for example between 15-20% and 80-85% trying to never get bellow or above.
This phone has a pretty big battery, that normally should be enough to bring you through a day of normal use (if it does not you may want to check your hungry apps running in the bg) but maybe you are an heavy gamer or use your phone for some heavy usage stuff?
Even then, it would be best to do 2 quick 15 to 50-60% in about 30 mins with QC2 (18W original Wall charger) rather than one unique full charge.
Looking at what you said with slow charging you probably know all of that already, but the faster you charge the battery, even if same %, the faster it will discharge. As odd as it is, remains factual.
I dont know if you ever used an external amperemeter or similar to check what kind of current was actually going through your battery while charging, but if you do you will notice the first % goes way faster to charge than the last few %. The chip dealing with the battery charge, charges slower and slower toward the end because it could damage the battery, when on the opposite it is rather safe to quick charge the % in the middle.
Also you may want to check your alternative 'slow wall charger' to make sure it provides you with a steady voltage current (V). If it is fluctuating too much, it may damage your battery.
If you want to do further research about the subject, there is a note on the RN8PRO Telegram group explaining how to calibrate your battery by deleting some system files (root needed as far as I remember) and having some charges/discharges steps. Personally I have not done it because it requires to go to 100% and 0% a few times, and depleting a Li-ion/Li-po battery completely can damage it irreversibly. They are not meant to be discharged fully period. Now battery should not be completely drained when OS takes the phone off, that said we never know for sure since we cannot change that setting unlike on our windows laptops, but I dont want to take the risk.
When you are stuck to 99% it kind of looks to be the OS not being able to know if the battery is fully charged or not. In that state of things, have you tried to turn off the device without unplugging to see if the off-mode charging screen (the small battery screen with % when you turn your phone off) also remains at 99% or gets to 100% at some point? Because maybe all you need is to restart the phone to make OS aware the battery is fully charged. Could be a SW known/unknown issue/bug to be fixed with future updates for all I know.
But again, I don't think you should fully charge and/or discharge (if you do) your phone when you can avoid it.
Just my 2 cents.
Hope this helps,
Regards,
Click to expand...
Click to collapse
Hi Muad.Dib,
Well, I wanted to do that full charge a/o discharge because I thought it would help with the issue (turns out, it didn't, it got worse as you said) but I didn't know the effects of this before, I always thought it wouldn't have any effect. I wish I could have read your reply before doing it (I was busy and couldn't read it).
The battery lasts for more than a day (or it did before), and I always try to keep it clean from battery draining apps, and I don't play games that much on the phone, less than an hour per day.
Do you recommend me to do those 2 charges to 60% in my state? (phone can't get over 79% now).
I haven't ever used an amperemeter because I don't have one, and neither I do know how to use one of those.
If you can lend me a hand and give me the link to join the Telegram Group, it would very helpful ??. But I don't want to root the phone yet, cause the seller's warranty stills intact.
And yes, I have tried it and the off-mode charging screen keeps showing me 99% (or kept, because now it keeps at 79%). And I also tried few restarts and it didn't fixed it. :c
And I'm sorry, I wish I could've avoided it, but I read your reply too late.
Thanks for trying to help me anyways.
PS. I will try to do a factory reset to see if the MIUI update has something to do with the issue (because the seller told me to do it, and I will do it, though I don't think it could solve the issue). Please, if you have any advice before I do it, you could help me a lot. ( I'll do it something around 11:00 AM in GMT -03:00)
AnonyIsRight said:
Hi Muad.Dib,
Well, I wanted to do that full charge a/o discharge because I thought it would help with the issue (turns out, it didn't, it got worse as you said) but I didn't know the effects of this before, I always thought it wouldn't have any effect. I wish I could have read your reply before doing it (I was busy and couldn't read it).
The battery lasts for more than a day (or it did before), and I always try to keep it clean from battery draining apps, and I don't play games that much on the phone, less than an hour per day.
Do you recommend me to do those 2 charges to 60% in my state? (phone can't get over 79% now).
Click to expand...
Click to collapse
Hey.
Very strange what is happening to you it's probably the first time I read about something like this.
Please note I am no battery expert either.
From own experience and friends, usually when you wear a battery (or it worn by itself after use or bad storage condition before being sold) it still goes up to 100% but does not retain original design capacity anymore. The usual behavior is like for example you still have like 30% left, and suddenly it drops to like 5% and you only have a few seconds to plug it in the charger.
When that's happens it is time to change battery.
In your case I really have no idea what could prevent HW/SW to reach 100%.
AnonyIsRight said:
I haven't ever used an amperemeter because I don't have one, and neither I do know how to use one of those.
Click to expand...
Click to collapse
Oh those are easy to use as I meant some kind of small USB device that you plug in between your charger and your phone. They are cheap and you get them for like 10 bucks on Amazon. Readings might not be 100% accurate but they still give a decent idea as they display Voltage, Amperage and accumulated capacity/used current for device plugged.
AnonyIsRight said:
If you can lend me a hand and give me the link to join the Telegram Group, it would very helpful . But I don't want to root the phone yet, cause the seller's warranty stills intact.
Click to expand...
Click to collapse
As I said I am nothing like an expert or anything so I am unsure what I can do to help. However I did check the telegram group and I confirm you the battery calibration thing is a rooted thing.
To find that group it is pretty easy just search for Redmi Note 8 Pro OFFICIAL from telegram and join the group.
You find quite a few things there.
AnonyIsRight said:
And yes, I have tried it and the off-mode charging screen keeps showing me 99% (or kept, because now it keeps at 79%). And I also tried few restarts and it didn't fixed it. :c
Click to expand...
Click to collapse
Normally nothing you could have done, could have damaged the battery this way. Depleting it completely could have shorten its life or damage its overall capacity, but by all means there is no way in just a month you could have damaged the battery to this point. So either the OS is not reading things right (what version of OS and phone do you have - which region is your rom?) or either sensors or battery have a problem.
Since you still are under warranty period I would definitely get it replaced. Maybe you got a faulty batch or something. This happens.
AnonyIsRight said:
PS. I will try to do a factory reset to see if the MIUI update has something to do with the issue (because the seller told me to do it, and I will do it, though I don't think it could solve the issue). Please, if you have any advice before I do it, you could help me a lot. ( I'll do it something around 11:00 AM in GMT -03:00)
Click to expand...
Click to collapse
This definitely cannot hurt to try.
If that does not work return the phone.
Just to know, based on your flag I would assume you are in Chile but I may be wrong. If I am not mistaking it is summer there and probably is pretty hot. I wonder if 'too hot' could damage the battery.
Hope this helps.
Regards,