I don't have a problem with the charging of my Desire, that isn't my question, my question is one that I can't seem to find the answer to anywhere, though I've found some threads that imply the answer.
Does the Desire stop charging when the green light is on, and run on AC power? I know a lot of modern devices do this, but I can't seem to find the answer to this question anywhere.
I have found that apparently people who charge up to 100% find that the charge drops to 93% after disconnecting the adaptor. I don't have a problem with that if it happens to my desire, though I haven't tested it, but I wish to know the answer to my above question if anyone knows, so that I know whether I can just leave it in the charger without any problems, basically.
The phone will go green at 90%, and will charge up to 100% then stop charging. I believe it will drain down to as low as 90% despite saying 100% charge before it kicks back in and charges again, and will rinse and repeat.
As far as I can remember it's the kernel that does it, I remember using Oxygen and I think Thalamus' kernel that upped the charge draining point to 95%.
This is why when you take your phone off of charge it can drop a huge amount in very little time.
Thanks, not exactly what I hoped the phone would do (running off AC power and not using battery at all when battery is full), but it's better than the phone just continually charging at 100%.
Related
Hi all
Just after an opinion really, also see if anyone else is having a similar problem with there battery??
I've had my desire now since April, and recently been having issues with the battery. When charging it, the Orange LED charge light will turn green at around 94% charge and still climb to 100%. Then when its charged (for a whole night) I unplug it, battery states 100% charge for about a minute, then drops straight to 93%. I've tried it with a few roms now, standard Rom, froyo, now on pays bravesoul release, and they all do the same...
I've tried resetting battery charge status in recovery console too, but made no difference...
Surely the standard battery can't be on its way out already??
*edit*
Info in my Sig is a bit out of date, so ignore what it says lol! Running latest pays bravesoul release as mentioned, not done any tweaks to this Rom yet!
Install JuicePlotter and then monitor the usage
report back
it should show whats using the battery when it takes a huge decrease
AFAIK the charging stops after reaching 100% (probably as safety measure)
and there doesn't seem to be a trickle charge function to keep it at 100%. This is actually a good thing 'cause Li-ion and Li-poly batteries don't like to stay in the highest or lowest regions too long.
So...charging stops at 100% and after that you're running on battery. Try charging it and unplug the charger when 100% is reached (look at the actual %, not the LED. You will notice it'll go down at the same rate it always does and no jump to 93%.
I think it charges to 100%, then allows itself to drop back to 90% (the phone still shows 100% though) and when you unplug the phone from the wall, it will drop back to the "actual charge".
If you plug it back in, it should start to charge back to 100%.
I have browsed the threads on the issue with the bump charge, but not a lot of people complaining about it so it made me think there was a fix. I cannot find the fix if it exists. The only issue I see people complain about is the length of time it takes to charge, but I'd rather just get a FULL charge with the phone on instead of having to charge it while its off....
I haven't heard much about it in a while, either, but did notice this with 2.2: Bump charging still works (as in, the LED turns red again when I turn off my phone and charge it) but the charge doesn't last as long as it did on 2.1...UNTIL I plug in my phone again. Then it takes a while to charge back up to 100, but then stays charged. It seems like bump charging now tells the phone that it can hold more charge, but it doesn't happen until you charge up the phone again while it's on.
I get a lot better life just charging the phone while it is off, at night.
Sent from my ADR6300 using XDA App
People at androidforums reported much better charging on the ruby 1.1.1 rom.
forum.xda-developers.com/showthread.php?t=714471&highlight=battery
thread title is Battery Recalibration
im trying those instructions. I hope that deleting the battery stats will force the phone to "bump" charge while still turned on rather than turning it off to get the extra juice
I've tried the battery recalibrate thing, didn't seem to do much for me...
...
Bump charge still works.
The kernel lets the battery charge only so far, and if you really really really think about the bump charge solution, it is simply "charging with the power off". Then the kernel is not so much in charge.
Ironically, if you charge with the power off, and then you turn it on but leave it plugged in, you will start expending the battery even though you never unplug it. It will ultimately settle at the level that a powered-on-not-bumped battery would settle at fully charge.
Problem:
I have been reading as many posts as possible but I haven't come across my exact situation. I apologize if this is posted elsewhere.
I am running a rooted Dinc using CyanogenMod 7.0.3. If I charge the phone while it's powered on, the amber led turns green as soon as the battery indicator hits 100%. However, recently I've noticed that if the battery is close to being full, say 90%, and i power it off to charge it, it actually takes longer for the amber led to turn green. It might take 20-30 minutes longer.
I've also noticed the amber light turn green when the indicator only showed 92%. In trying something different I also noticed that if I charge the phone while it's powered on, then turn the phone off, the led goes amber and takes another 20 minutes to turn green again (I might be accidentally bump charging in this example but I'm not sure).
Attempted Solution:
I've read that a battery recalibration might help. I tried one method that requires the battery to be pulled after a full charge, but my phone won't boot while plugged into the wall if there's no battery. Then I tried booting into recovery, where I found an option to reset the battery stats... which I just did about 5 minutes ago.
I'm going to see how things go tomorrow, but is this normal? Has anyone else experienced these things? Thanks.
Logan176 said:
Problem:
I have been reading as many posts as possible but I haven't come across my exact situation. I apologize if this is posted elsewhere.
I am running a rooted Dinc using CyanogenMod 7.0.3. If I charge the phone while it's powered on, the amber led turns green as soon as the battery indicator hits 100%. However, recently I've noticed that if the battery is close to being full, say 90%, and i power it off to charge it, it actually takes longer for the amber led to turn green. It might take 20-30 minutes longer.
I've also noticed the amber light turn green when the indicator only showed 92%. In trying something different I also noticed that if I charge the phone while it's powered on, then turn the phone off, the led goes amber and takes another 20 minutes to turn green again (I might be accidentally bump charging in this example but I'm not sure).
Attempted Solution:
I've read that a battery recalibration might help. I tried one method that requires the battery to be pulled after a full charge, but my phone won't boot while plugged into the wall if there's no battery. Then I tried booting into recovery, where I found an option to reset the battery stats... which I just did about 5 minutes ago.
I'm going to see how things go tomorrow, but is this normal? Has anyone else experienced these things? Thanks.
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The kernel and the hardware charge it in different ways. That's why there are differences. DInc is famous for ending charging before the battery reads full. There's already a thread on that. there's not much point in getting hung up on how that thing charges. Be glad yours isn't like mine; a battery that discharges faster than it charges. Seriously.
loonatik78 said:
The kernel and the hardware charge it in different ways. That's why there are differences. DInc is famous for ending charging before the battery reads full. There's already a thread on that. there's not much point in getting hung up on how that thing charges. Be glad yours isn't like mine; a battery that discharges faster than it charges. Seriously.
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Before I had a fast charge kernel (thanks Chad!) Using GPS with the stock VZW car charger, my battery would go down while it was on the charger!
Sent from my ADR6300 using XDA App
On AOSP roms, the LED will turn green at 90% and charge slower from 90%-100%. Perfectly normal, and I think on any rom it will charge slowly from 90%-100% to protect the battery.
The battery will charge further when you turn the phone off, what you described is what's known as bump charging. If you do this, you should notice a slower drop from 100%-90% than usual, because the battery is charged to a "true" 100%. When the phone is on and charging (above 90%), it simply keeps the battery above 90% even if it says it's fully charged, and this is why the inc is notorious for the quick 100%-90% drop.
If you do a bump charge and then clear the battery stats and use the battery calibration app will you need to bump charge again or will it know what the true 100% capacity is and keep the droid lasting longer. Not noticing much of a diffrence when i went from 1300 battery to a 1500. May get a bigger batter that'll fit the stock battery door cause I'm trying to get the best battery life i can get.
Thanks guys, I appreciate the help. I think something else that has thrown me off is that before I rooted the phone I wasn't able to see the actual battery percentage in numbers... all I could see was the battery icon. Things are now making more sense.
After recalibrating my battery I bump charged the other day and I was able to get almost 2 days out of my phone on light usage. Without bumping, I was able to end my day yesterday at 50% under my normal usage. Which is a noticeable improvement. Normally I end the day with about 10-20%. The big test will be once I go back to work next week. The cell reception is real spotty in my classroom, which I know makes the cell radio work harder.
Thanks again.
I found a lot of answers I was having about battery charging in this thread:
Your battery gauge is lying to you (and it's not such a bad thing)
My Dinc is having an issue. It had been charging, although though i think it had stopped for some reason. I was looking at it, making sure I wasn't running a ton of radios/apps and whatnot,when suddenly it just shut down, and now it won't come back on. The amber light is slowly blinking steadily. This has never happened before, and I'm not entirely certain what to do...it won't even let me HBOOT. Someone help plz?!
What kind of charger are you using? The blinking amber light usually just means its charging up from being dead, so you can't turn it on yet. I've had my Incredible use more power than the charger and actually discharge when plugged in. Rare, but can happen. It's not giving you 5 vibrations or anything right?
pull the battery out for a few seconds and it should turn back on
Sounds like your charger is too weak. After doing a modification job on a charger of mine I discovered that the charger was so weak that the phone was actually backfeeding and discharging at a extremely high rate. I recommend a charger of at least 750 mah's. The ones that ship with the phone are 1 amp and work like a charm. Older chargers for lots of other devices are as low as 300 mah's (which will work if the phone is off, but if you're actually doing anything, it's too weak).
gilliduck said:
Sounds like your charger is too weak. After doing a modification job on a charger of mine I discovered that the charger was so weak that the phone was actually backfeeding and discharging at a extremely high rate. I recommend a charger of at least 750 mah's. The ones that ship with the phone are 1 amp and work like a charm. Older chargers for lots of other devices are as low as 300 mah's (which will work if the phone is off, but if you're actually doing anything, it's too weak).
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thanks for the info..
Thanks guys, it seems to be fine now. I'm not sure the issue, but when looking at the battery stat graph, it should what can only be described as a "plateau-like" droppoff. It wasn't gradual. I flashed the OTA 2.3.4 via Stang's post, said "ehh I forgot I didn't like Sense" and reverted to my nand b/u of CM7.1 RC1. I decided to retain the radio. Now a few hours later, it did that. The only thing I can think of was perhaps the battery stats? Perhaps I didn't have as much charge as I thought? I have since wiped everything, stats included. Seems fine, will update you if anything else happens. And I am on the factory charger(s).
Yeah, sounds possible that your battery stats were all garfed up and your phone thought it was at a much higher level than it actually was. Mine did that after my accidental backfeeding charger. It'd say it was at 87% and then about 20 minutes after being on the charger die, though the % never dropped. After charging it enough to boot it'd say 0%. So yeah, I think it's pretty easy to confuse the battery stats.
Hi All,
I posted this on MoDaCo initially but it seems either noone was interested or not many people have a Galaxy Nexus on that forum. So, I'm going to paste the post I put on there and see if you guys are having similar issues as its starting to become an annoyance.
Just so people don't start moaning, this ISN'T related to the Battery draining problem I originally posted a week or so back. My battery issues are fixed thanks to the wonderful devs who made Juice Defender.
Anyways, back on topic. I've noticed ever since I've gotten my GNexus that the battery never fully charges to 100% without me unplugging it and plugging it back in again to FORCE it to charge to 100%. I've tried the usual battery calibration trick and I have also tried an app on the market that is supposed to work.
I then tried wiping and putting the stock ROM back on, but to no avail. Wiping batter stats via CWM comes up with the same as well.
My battery is capable of charging to 100% but its only if I unplug it from charging and them plug it back in again.
I've tried charging via USB and via the wall charger both with the same results. My question is, are you guys having these issues? Is there anyway of fixing this that I haven't already tried?
There are a lot of threads about this already, please use the search before posting. This is normal behavior, batteries will never keep charging once they hit 100%, they stop charging and will charge again after they have dropped a few percentages. This is to protect the battery.
I have the same 'issue'. Not that I am too concerned about 1-2% but every morning when I unplug and look at the phone its on 98%-99%. never 100%
This is, in fact, a good thing.
The max voltage you may charge a LiIon cell to is 4.20V. If you charge it slightly less, say to 4.15V (~95%), you will get a lot more charge cycles out of it.
Also, the more time the battery stays at max voltage (or close to it), the faster the battery ages.
kristovaher said:
There are a lot of threads about this already, please use the search before posting. This is normal behavior, batteries will never keep charging once they hit 100%, they stop charging and will charge again after they have dropped a few percentages. This is to protect the battery.
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search is hard to understand
</sarcasm>