thunderbolt will not charge past 20 percent. It has been rooted with various skyraider roms and has used stock or recommended kernels with each. Currently it is wiped and unrooted but I can root it again if that helps.
I have tried to do battery status wipes with no sucess and i have replaced batterys and purchaced the verizon extended battery and it got into the 40s for charging percentage. weird thing is that it can be charged up to the 40 percent on the extended battery and drain to almost nothing within 15 min to a half hr. Yet I can put this battery in another phone and it will last all day... very frusterating. when i plug it in it reads around 40mA to 20mA when its "fully charged" at 20 percent. It does go into the high 200s and low 300s when charging. It also reads 3.764 volts at 20 percent.
I feel like there is software that is telling the phone to stop recieving charge because it thinks its full!
Any help would be greatly appreciated!!!
Android version 2.34
Sense 2.1
Software number 2.11.605.5
Kernel Version 2.6.35.10.g00f8966 [email protected] #1
how long have you left the device plugged? Have you tried different chargers? Don't bother with battery stat wipes or other "calibration" non-sense. They've been proven false by a google engineer's own statments. Bring the battery to a full charge in another device and then see what the voltage reading is in your phone. If it is around 4.2, then it is indeed fully charged. Run the battery down and then charge it with your phone. Check the voltage and see if it makes it back to 4.2 volts. If it never makes it back to 4.2, you have a phone or a charger problem. Charger is easy to check, phone will need to be warrantied. All this is based on the battery being good from your original post.
Trying to be a showoff, I decided to let my Blaze drain down to near-zero so I could get a screenshot of the battery stats page in CM. Unfortunately, it shut down when it hit "0" on the battery meter, and when I plugged it in to charge a few minutes later, it came up to the battery charge screen with the icon of the grey battery, and then shut off.
I can get it into clockworkmod and download mode while on AC power or plugged into my computer, but neither will charge it. Upon reboot while off AC or USB power, the Samsung logo flashes for less than a second and then shuts off. No CM boot animation whatsoever.
A voltmeter shows 3.65 volts on the battery, but I'm assuming the available amperage is extremely low and can't provide the required juice to boot it up completely. Any ideas would be appreciated.
boot into cm, backup and flash a different rom and see if it will charge
i had to do that with a droid x i bought off ebay, someone had flashed a version of miui that had a bug which caused it to think the battery was always full and wouldnt allow the phone to charge
namaui said:
A voltmeter shows 3.65 volts on the battery, but I'm assuming the available amperage is extremely low and can't provide the required juice to boot it up completely. Any ideas would be appreciated.
Click to expand...
Click to collapse
Amps is a measurement of current.
Voltage is a measure of the charge and 3.65 volts is still a good amount. The nominal voltage for the battery is likely to be 3.2v and you're nowhere near that. For example if it took about 3 hours to run the battery down from 4.2v (full charge) to 3.65v then you should be able to run the device for maybe a couple more hours before the battery is close to being drained.
[just a guess here]
The firmware does battery management. Shuts off the device when it thinks the battery is about drained and stops charging when it thinks the battery is at about full capacity. The software is probably out of sync with the physical state of the battery (calibration) and thinks the battery is at zero when it actually has plenty left. Or it has a bug. If you can't find an easy way to wipe/reset the calibration data then I'd go with the advice above and re-flash or flash something else.
Quick7135 said:
Amps is a measurement of current.
Voltage is a measure of the charge and 3.65 volts is still a good amount. The nominal voltage for the battery is likely to be 3.2v and you're nowhere near that. For example if it took about 3 hours to run the battery down from 4.2v (full charge) to 3.65v then you should be able to run the device for maybe a couple more hours before the battery is close to being drained.
[just a guess here]
The firmware does battery management. Shuts off the device when it thinks the battery is about drained and stops charging when it thinks the battery is at about full capacity. The software is probably out of sync with the physical state of the battery (calibration) and thinks the battery is at zero when it actually has plenty left. Or it has a bug. If you can't find an easy way to wipe/reset the calibration data then I'd go with the advice above and re-flash or flash something else.
Click to expand...
Click to collapse
Thanks for the quick response, I think your guess was pretty accurate. An hour ago I cleared the battery stats in CWM, and after a few more battery pulls and reboots at the Samsung logo I left it alone while plugged into the AC charger. Came back 45 minutes later to a warm handset with a black screen and after holding the power button down for a good 15-20 seconds I booted normally into CM with a 12 percent charge.
Because I was able to get into CWM and download mode just fine (and run off battery for a few minutes), I was starting to think I broke CM. Glad I didn't get punchy and reflash.
And yes, you're right about amps, I was implying amp-hours with the wrong term.
Trickle charge kills battery. If you arrive home late, put your phone on the charger and charge it overnight it kills battery.
It would be cool if it was possible that an app could cut off charging at ~80% when trickle charge kicks in. Maybe root is needed but is it possible at all?
Or a physical timer which cuts off charging after a certain time (2 hours to charge from 0% to 80; 1 additional hour to trickle charge from 80% to 100%).
Any thoughts or solutions for this?
Reference:
#1: http://arstechnica.com/gadgets/2011/02/ask-ars-what-is-the-best-way-to-use-an-li-ion-battery/
#2: http://www.filterjoe.com/2012/08/08/keep-iphone-plugged-in-yes/
#3: http://lifehacker.com/5875162/how-often-should-i-charge-my-gadgets-battery-to-prolong-its-lifespan
Sewrizer said:
There are timer sockets available for purchase. You set the amount of time you want to charge the phone and you're done.
They look like this
http://upload.ecvv.com/upload/Product/20107/China_Timer_socket20107141429157.JPG
Click to expand...
Click to collapse
Exactly that. Thanks.
Personally I use a powerpack to charge my phone overnight. Once the device is full, the powerpack stops charging.
Admittedly I have to remember to recharge the pack every week (it's 15600mah), but on the other hand I can also bring it with me. It's also safer.
Sent from my SM-N9005 using Tapatalk 2
If you're rooted, I know some custom kernels (I want to say I saw it in the Aroma installer of ElementalX for my Nexus 7) have an option to cut off charging around 95% for this reason.
But of course, that's only if you're comfortable rooting and tinkering with kernels and such.
I don't use my P6200 a lot I have to say, so I do charge it to use it but leave it to run out of battery. The problem is such, that, when I charge my tablet from flat, it takes such a long time even to show the charging icon. Has anyone experienced a problem similar to me, and how they have dealt with it?
It would be nice to have a script which causes the tablet to shutdown at 10% or something like that. That gives enough energy to start up the charger icon.
gwhite5 said:
I don't use my P6200 a lot I have to say, so I do charge it to use it but leave it to run out of battery. The problem is such, that, when I charge my tablet from flat, it takes such a long time even to show the charging icon. Has anyone experienced a problem similar to me, and how they have dealt with it?
It would be nice to have a script which causes the tablet to shutdown at 10% or something like that. That gives enough energy to start up the charger icon.
Click to expand...
Click to collapse
Yes this is a normal the easiest way to prevent this is to feed you kid/s (device/s)before you store them, Why does this happen? Your battery is simply below the min boot voltage/ is critically low
eg. you have a 3.7 volt 4AH battery at 100% its 4.255volt at 0% its 3.145volt if you let it run dry 0% and store it and it falls to for arguments sake to 2.9 volt then it is below the min voltage and it will take a while to charge to requiered voltage as with all batteries
Please not you will get better battery life from your device if you charge it more frequently and not run it down to much.
My tab has been serving me a a phone for 28.5 months calls from 8am to 5 pm and games from 7pm to 11pm almost everyday my device was was built 2012/05 never needed a replacement battery pack so far and still get 4-10 hour use if i deep discharge over weekends
More info if you run a device dry
Please keep you OEM charger close as mine ran dry and "locked itself"(this is what the samsung tech said) and i tryed a S3 note2 and note 8 charger for 30min +/- each with my oem charge lead and it denied to charge only the orginal charger worked in 1min i was up and running ... was a worried device was 4 weeks old
Thanks very much @matthys
Hey guys, I am so insecure about the battery charging tips for the OnePlus 6. I've seen a lot of posts, some say it does no harm charging to 100% and vice versa. Could anyone please enlighten me? I always charge my phone until 80% and then disconnect the power source.
Thank You
Whatever makes you feel comfortable.
I always charge to 100% but try to avoid the constant use of dash charging. I find that regular fast charging slightly reduces the battery life. Not charging to 100% also reduces the battery life (as the phone will think after a while that 80% is the max it can reach). I want to keep this phone for a long time (got the 8/256 version) and my experience with years of computerized Lithium chargers (for RC stuff) suggests that a. always charge to 100% and b. avoid frequent fast charging, slow(er) charging is better. That lead for me to the max battery life (both capacity and overall life expectancy)
Gadgetguy2005 said:
I always charge to 100% but try to avoid the constant use of dash charging. I find that regular fast charging slightly reduces the battery life. Not charging to 100% also reduces the battery life (as the phone will think after a while that 80% is the max it can reach). I want to keep this phone for a long time (got the 8/256 version) and my experience with years of computerized Lithium chargers (for RC stuff) suggests that a. always charge to 100% and b. avoid frequent fast charging, slow(er) charging is better. That lead for me to the max battery life (both capacity and overall life expectancy)
Click to expand...
Click to collapse
Not charging to 100% will NOT reduce battery life as much as charging to 100%. You're probably thinking of Lithium-Polymer batteries and not Lithium-Ion batteries which this phone uses.
isaacchook said:
Hey guys, I am so insecure about the battery charging tips for the OnePlus 6. I've seen a lot of posts, some say it does no harm charging to 100% and vice versa. Could anyone please enlighten me? I always charge my phone until 80% and then disconnect the power source.
Thank You
Click to expand...
Click to collapse
Ignore all the crap. Just use your phone comfortably as that's how the experience should be. By the time your battery degrades, you'll probably be looking to replace it anyway.
j0nas_ said:
Not charging to 100% will NOT reduce battery life as much as charging to 100%. You're probably thinking of Lithium-Polymer batteries and not Lithium-Ion batteries which this phone uses.
Click to expand...
Click to collapse
You may be right. I am not sure. What I do know is that I sold my last three phones after 12-18 months of use and using my method their batteries had the exact same capacity than the day I got them. My wife is charging her phone whenever she feels like it (most of the time she charges to less than 100%) and after less than a year the capacity is reduced.
So I am not sure if I do it right (they way it "should be done") but it works for me.
isaacchook said:
Hey guys, I am so insecure about the battery charging tips for the OnePlus 6. I've seen a lot of posts, some say it does no harm charging to 100% and vice versa. Could anyone please enlighten me? I always charge my phone until 80% and then disconnect the power source.
Thank You
Click to expand...
Click to collapse
It's 2018 battery technology has changed. Charging it to 100% is the same amount of wear as having to charge to 80% more often 1 cycle on a lithium ion battery is how many times it is charged to 100% total. So a charge from 25% to 100% is .75 of a cycle then if you run it down to 75% and charge the 25% back to 100 that is 1 total cycle. It doesn't matter how many times you go to 100% or how many times you plug it in. And dash charge has built in protection against overcharging and it also slows charging when it nears full capacity. So Dash charging isn't any more wear than a slow charger.
---------- Post added at 08:38 PM ---------- Previous post was at 08:36 PM ----------
j0nas_ said:
Not charging to 100% will NOT reduce battery life as much as charging to 100%. You're probably thinking of Lithium-Polymer batteries and not Lithium-Ion batteries which this phone uses.
Click to expand...
Click to collapse
It won't reduce the battery life and neither will just going to 100%
See https://batteryuniversity.com/index.php/learn/article/how_to_prolong_lithium_based_batteries
BTW.. my battery is often hot, running at 30-31c. What Temperature is your battery at when not doing much?
as you want
Just bear in mind your battery will not have the same performance after 2 years of use.
just charge it up to the level you want, then invest in a $30 replacement battery.
Gadgetguy2005 said:
I always charge to 100% but try to avoid the constant use of dash charging. I find that regular fast charging slightly reduces the battery life. Not charging to 100% also reduces the battery life (as the phone will think after a while that 80% is the max it can reach). I want to keep this phone for a long time (got the 8/256 version) and my experience with years of computerized Lithium chargers (for RC stuff) suggests that a. always charge to 100% and b. avoid frequent fast charging, slow(er) charging is better. That lead for me to the max battery life (both capacity and overall life expectancy)
Click to expand...
Click to collapse
How do you not do dash charging if all you got is the charger that came with the phone? Is there a way to actually tell it how to charge the battery?
Static-xy said:
How do you not do dash charging if all you got is the charger that came with the phone? Is there a way to actually tell it how to charge the battery?
Click to expand...
Click to collapse
I have about a half dozen phone chargers - I just use one that is not dash
i emailed oneplus and they told me a new battery after warranty cost only 33 euro including repair and shipping so now that i know this i dont really care about my battery health and will change it out around 2 years
I'm changing phones every year. By this time battery will be fine, so I don't really care how to charge it. My way is to charge it every night with USB cable connected to pc (slow as f*ck, 80% takes about 3 or 4 hrs, but sleeping takes6-8hrs anyway - reason for that is stupid I don't have power socket close to my bed ) - in case I need juice fast - two oneplus chargers somewhere at home.
OnePlus 6 @ Tapatalk
isaacchook said:
Hey guys, I am so insecure about the battery charging tips for the OnePlus 6. I've seen a lot of posts, some say it does no harm charging to 100% and vice versa. Could anyone please enlighten me? I always charge my phone until 80% and then disconnect the power source.
Thank You
Click to expand...
Click to collapse
You should charge your phone to 100% and if you can leave it on a charger even after that, even better
I'm actually a developer and have read the code so please read on for the explanation
If you have had a phone with android M or lower you might be familiar with the "android is starting/upgrading" screen where it showed "optimising app x of total"
So, Google removed that code in N right? Why is this a bother
Actually wrong, that code was simply relocated
The code was moved from the boot process to when the device was charging (that is, plugged in), full charged (that is, 100%) and idle (idle = device is not physically moving)
Once this condition is satisfied, the code behind the "android is starting" screen runs in the background and starts optimising apps
In other words, you have to keep your phone connected to a charger in order to finish this process
Which is why it is a good idea to charge overnight
What if you don't allow this to happen?
Ever heard of the classic "android system using a lot of battery" issue? You basically force your system to use the JIT compiler which uses a lot of battery and android system comes to the top as a result
In other words if you don't leave your device on a charger long enough, your battery life will suffer anyway
Wiping cache is also a pretty bad idea
So, leave your phone on a charger without worries. Google just made the "android is starting" code a lot more convenient for the user but you have to allow your phone to run that code otherwise it's meaningless
Protip: some root users suggest running "cmd package bg-dexopt-job" in a terminal emulator app as root forces the optimisation to happen. I haven't personally tried it but it won't cause any damage to your phone that's for sure
That doesn't mean you should go try it unless you are aware of what you're doing either
anupritaisno1 said:
You should charge your phone to 100% and if you can leave it on a charger even after that, even better
I'm actually a developer and have read the code so please read on for the explanation
If you have had a phone with android M or lower you might be familiar with the "android is starting/upgrading" screen where it showed "optimising app x of total"
So, Google removed that code in N right? Why is this a bother
Actually wrong, that code was simply relocated
The code was moved from the boot process to when the device was charging (that is, plugged in), full charged (that is, 100%) and idle (idle = device is not physically moving)
Once this condition is satisfied, the code behind the "android is starting" screen runs in the background and starts optimising apps
In other words, you have to keep your phone connected to a charger in order to finish this process
Which is why it is a good idea to charge overnight
What if you don't allow this to happen?
Ever heard of the classic "android system using a lot of battery" issue? You basically force your system to use the JIT compiler which uses a lot of battery and android system comes to the top as a result
In other words if you don't leave your device on a charger long enough, your battery life will suffer anyway
Wiping cache is also a pretty bad idea
So, leave your phone on a charger without worries. Google just made the "android is starting" code a lot more convenient for the user but you have to allow your phone to run that code otherwise it's meaningless
Protip: some root users suggest running "cmd package bg-dexopt-job" in a terminal emulator app as root forces the optimisation to happen. I haven't personally tried it but it won't cause any damage to your phone that's for sure
That doesn't mean you should go try it unless you are aware of what you're doing either
Click to expand...
Click to collapse
Thank you. Understood!
anupritaisno1 said:
You should charge your phone to 100% and if you can leave it on a charger even after that, even better
I'm actually a developer and have read the code so please read on for the explanation
If you have had a phone with android M or lower you might be familiar with the "android is starting/upgrading" screen where it showed "optimising app x of total"
So, Google removed that code in N right? Why is this a bother
Actually wrong, that code was simply relocated
The code was moved from the boot process to when the device was charging (that is, plugged in), full charged (that is, 100%) and idle (idle = device is not physically moving)
Once this condition is satisfied, the code behind the "android is starting" screen runs in the background and starts optimising apps
In other words, you have to keep your phone connected to a charger in order to finish this process
Which is why it is a good idea to charge overnight
What if you don't allow this to happen?
Ever heard of the classic "android system using a lot of battery" issue? You basically force your system to use the JIT compiler which uses a lot of battery and android system comes to the top as a result
In other words if you don't leave your device on a charger long enough, your battery life will suffer anyway
Wiping cache is also a pretty bad idea
So, leave your phone on a charger without worries. Google just made the "android is starting" code a lot more convenient for the user but you have to allow your phone to run that code otherwise it's meaningless
Protip: some root users suggest running "cmd package bg-dexopt-job" in a terminal emulator app as root forces the optimisation to happen. I haven't personally tried it but it won't cause any damage to your phone that's for sure
That doesn't mean you should go try it unless you are aware of what you're doing either
Click to expand...
Click to collapse
Nice, now that's some interesting reading, thanks for the info, didn't know that !
anupritaisno1 said:
You should charge your phone to 100% and if you can leave it on a charger even after that, even better
I'm actually a developer and have read the code so please read on for the explanation
If you have had a phone with android M or lower you might be familiar with the "android is starting/upgrading" screen where it showed "optimising app x of total"
So, Google removed that code in N right? Why is this a bother
Actually wrong, that code was simply relocated
The code was moved from the boot process to when the device was charging (that is, plugged in), full charged (that is, 100%) and idle (idle = device is not physically moving)
Once this condition is satisfied, the code behind the "android is starting" screen runs in the background and starts optimising apps
In other words, you have to keep your phone connected to a charger in order to finish this process
Which is why it is a good idea to charge overnight
What if you don't allow this to happen?
Ever heard of the classic "android system using a lot of battery" issue? You basically force your system to use the JIT compiler which uses a lot of battery and android system comes to the top as a result
In other words if you don't leave your device on a charger long enough, your battery life will suffer anyway
Wiping cache is also a pretty bad idea
So, leave your phone on a charger without worries. Google just made the "android is starting" code a lot more convenient for the user but you have to allow your phone to run that code otherwise it's meaningless
Protip: some root users suggest running "cmd package bg-dexopt-job" in a terminal emulator app as root forces the optimisation to happen. I haven't personally tried it but it won't cause any damage to your phone that's for sure
That doesn't mean you should go try it unless you are aware of what you're doing either
Click to expand...
Click to collapse
What if I charge for a prolonged time but the battery doesn't reach 100%? I.e. if I plug it into my PC (very slow charging) and leave it for a few hours?