Now to start of, I have a T-mobile MDA with the 2.17 rom upgrade. My problem is my battery would jump from say 50 % to like 90%. Like today the battery was completely dead and i charged it up to 57% and hat to stopp because i had to run to the gym. Im at the gym and look at my power it mysteriously jumped up to 91%. now i know it doesnt have 91% because it was only charging for about a half hour. anyone know why it does this. Also i notice that when it does this the battery drains really fast until it gets down to the number it would normally be at if it didnt jump. Thank you in advance
about the battery...
If you recharge your battery every day when it has anything between 45% and 70% leaving it charging overnight, what effect will it have?
The battery producers claim that batteries don't have the "memory effect." Is it entirely true?
jok3sta said:
Now to start of, I have a T-mobile MDA with the 2.17 rom upgrade. My problem is my battery would jump from say 50 % to like 90%. Like today the battery was completely dead and i charged it up to 57% and hat to stopp because i had to run to the gym. Im at the gym and look at my power it mysteriously jumped up to 91%. now i know it doesnt have 91% because it was only charging for about a half hour. anyone know why it does this. Also i notice that when it does this the battery drains really fast until it gets down to the number it would normally be at if it didnt jump. Thank you in advance
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I have had this issue as well - my suggestion leave it charging and try not to use it while its charging - or if you do remove it from the charger. Last night my charge went from 85 to 100% and light went green. But today during light usage I went from 100 right back to like 86% immediately not gradually.
Some sort of bug I think
yah i guess its just a bug. I wonder how many others are experiencing this
Wierd charge readings
I'm getting the same thing. I am also running the 2.17 ROM but I only noticed it yesterday. I've had the 2.17 ROM for about 3 or 4 weeks but never noticed it happening before. For me it happens if I'm charging and then for whatever reason disconnect the unit from the charger. It jumps to 100% and i guess there is some internal circuitry which prevents any further charge being applied. Nothing scientific but it doesn't appear to happen if I'm charging off the laptop using a USB cable. Has only happened with mains charger. Might do some tests later on to try and find something more concrete but on the other hand I'm not sure that it bothers me much.
Hi guys, I recently decided to root my g1 with JF1.5 and I'm loving it so far. I did notice that it takes alot longer to charge the battery though. Is anyone else having this minor problem, and is there a fix?
thanks in advance for any imput
Battery Charge
I'm having the same trouble, and for whatever reason once it gets up to 95% it gets to 100% in under a minute, whereas as long as it took to charge it should be another 10 - 20 minutes. I'm not really worried about it though. Makes me think I have a really long battery life!
I'm not too worried either, as I have a car charger, but one of the things I admired about the G1 was how blazing fast it took to fully charge, and I miss it, is all.
B3astofthe3ast said:
I'm not too worried either, as I have a car charger, but one of the thing I admired about the G1 was how blazing fast it took to fully charge, and I miss it, is all.
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and how blazing fast it took to drain completely.
Once you have it fully charged, let it fully run down once (i.e. until the phone turns itself off). This should allow your phone to relearn the battery's limits. Note that I do not recommend doing this much, as it may decrease your battery's life.
this topic's been covered on 2 other threads ive seen. However, i dont think anyone's come up w/ a solution yet, or a cause. I don't mind it so much since my phone will still last a little over a day w/ mild use before i would need to recharge it.
letting it run down completely and charging it fully doesn't fix it. neither does taking out the battery for a bit and putting it back.
I noticed that it took longer to recharge, but im not worried about it.
I noticed that if i reboot the phone while its charging the percentage raises dramatically, so if i am in need of recharging i normally hit a 3 finger salute while its charging.
Plain and simple: When the Evo is fully charged, it begins running off its battery until you plug it back in. It DOES NOT trickle charge whatsoever after it reaches 100%. When you're using your Evo on the charger, and it's showing full 100% charge, it is running off the battery, not the AC plug. And then when you unplug it, well, we all know what happens next. The battery meter drops insanely fast to the actual charge of the battery, which could be very low, depending on how long it's been sitting idle at 100% on your charger.
So all those times you've charged your Evo overnight, only to take it to work the next day and be at 80% within an hour? Your Evo was running off its battery for what I'm guessing was most of the night. It takes my Evo about an hour to two hours to fully charge back to 100%. Let's say you put your Evo on the charger at 11PM, it'll reach full charge by 1AM at the latest, and then run off its battery until whenever you take it off the charger in the morning.
Workarounds?
1) Turn your Evo off while it's charging.
2) If you must leave it on for an alarm clock, put it in airplane mode and end all CPU intensive tasks to minimize battery drain.
3) When you wake up, unplug it for 10-20 minutes (still experimenting with this number), and then plug it back in to top it off. Once it reaches 100%, take it off the charger, and go about your day.
Try it out for yourself. When your Evo is 100% charged, take it off the charger immediately, and I highly doubt you will lose the 10%-15% within minutes. Please share your findings.
Er... Point of note, mine does it even if I pull it off the charger right when it turns green.
Post some technical schematic or other type of proof that shows that this circuitry isn't available in the EVO. That will prove beyond a doubt if what your saying is true.
That being said, only a group of the most retarded electrical engineers would design a charging system as you've described. It is INSANELY easy to build Li-Polymer charging circuitry that does the following (and it pretty much has to do these):
1. Detects battery temperature, and disables charging as a protective measure. In an emergency case it should shut off the device it's powering to allow the battery to cool down. This is a design requirement, or else your house burns down as you dump water on a Lithium fire thinking it's going to put it out. If you have a HERO, you can easily test this. Running the wireless tethering, GPS/Navigation, and Music with the screen running heats up the phone a ton. You'll notice the status light blink green once, then red a couple of times. This means that it's plugged in but not charging. Cool the phone down and it turns solid red again (charging).
2. Disable charging cycle when battery reaches a certain voltage. VERY SIMPLE voltage detection circuitry! The designer can of course adjust a gap to have charging turn back on when it dips below a certain voltage. Usually since this circuitry can be made with a decent amount of precision, that "turn back on" voltage ends up being roughly when the battery discharges to maybe 99.5%. That's just a guess, I admit but there's no harm in having the circuit switch on and off, even if it's often.
There are also a few other circuits that prevent the cell from blowing up in your pocket, like a current sensor to prevent an overcurrent. There's also some stuff that prevents you from being able to discharge the cell below it's avalanche voltage. In case you don't know what that is, when a Li-Ion battery discharges to a certain voltage, it avalanches to 0 (quickly falls). If it hits that point, you've pretty much ruined the battery and it will never charge the same again.
Anyway, this is stuff they taught and had design labs on back in college. While I have no actual proof that the phone wasn't designed as the OP describes, I find it highly unlikely. If this is the behavior that the circuitry exhibits, I would find it easier to believe that it's a design flaw, probably because some idiot didn't compile the correct bill of materials.
I haven't got any schematics or any sort of technical information on the subject. All I know is, it works wonders for me. When I take my Evo off the charger in the morning, it literally drops to ~90% within minutes. Once it does that, if I place it back on the charger for ~20 minutes, it charges back to 100% and stays there for 45 minutes to an hour.
I'd urge anybody who is noticing the immediate 10% to 15% drop in battery to give this a shot.
I would turn it off while I'm charging it overnight, but I use it as my alarm clock
Me Too
I am seeing the exact same behavior as the OP. This is really lame. Because of this, most people will end up losing 10% of their battery every day. Pretty lame.
I charge my phone overnight every night. Never noticed a problem and I just checked my battery and its at 88% and has been off the charger for 2.5hours so I'm not seeing the rapid discharge issue some people are seeing.
I don't think so man, I leave my screen on full brightness while it's charging, and if what you said was true it would go dead on the charger.
I think it's more likely the cells haven’t charged equally, so you get a big initial drop.
Grims said:
I don't think so man, I leave my screen on full brightness while it's charging, and if what you said was true it would go dead on the charger.
I think it's more likely the cells haven’t charged equally, so you get a big initial drop.
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I'm beginning to think that once the battery reaches 100% full, it runs off the battery until it reaches some arbitrary percentage. At which point it starts charging until it reaches 100% again, and then continues this cycle.
I'm testing a few other things right now. Part of me is convinced it reports 100% charge when it's actually below that level.
Krynj said:
I haven't got any schematics or any sort of technical information on the subject. All I know is, it works wonders for me. When I take my Evo off the charger in the morning, it literally drops to ~90% within minutes. Once it does that, if I place it back on the charger for ~20 minutes, it charges back to 100% and stays there for 45 minutes to an hour.
I'd urge anybody who is noticing the immediate 10% to 15% drop in battery to give this a shot.
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I'll try this out to see if I can get the same kind of behavior. I guess I honestly haven't looked to see if the phone drops 10-15% after pulling it off.
Krynj said:
I'm beginning to think that once the battery reaches 100% full, it runs off the battery until it reaches some arbitrary percentage. At which point it starts charging until it reaches 100% again, and then continues this cycle.
I'm testing a few other things right now. Part of me is convinced it reports 100% charge when it's actually below that level.
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This is what should be happening I believe, but I'd be surprised if it was set to such a huge swing like 10-15%
Grims said:
I don't think so man, I leave my screen on full brightness while it's charging, and if what you said was true it would go dead on the charger.
I think it's more likely the cells haven’t charged equally, so you get a big initial drop.
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This is an interesting theory. I do know that when you have multiple Li-Ion cells in a battery pack, if they discharge unevenly, you have to go off of the lowest charged cell. Again, if a cell were to drop below the avalanche voltage, you'd ruin the pack all together. On the other hand, the circuitry should let ALL cells charge to 100% so it's even again. Maybe they screwed this up, that design isn't so easy! Perhaps it detects one cell as 100% and shuts off the charge. Therefore, one could surmise that if you started with an unevenly charged battery pack, you'd have an immediate decrease in charge to the rating of the lowest charged cell. The good news (maybe) is that this is sometimes implemented with software. That means that HTC could release a bug fix for this, or if we have a savvy dev, they could try to fix it. We just need to prove the theory though.
This is all just a guess, keep that in mind. If I notice something like this with my phone today, maybe I can tear apart the battery and measure the voltage on each cell (if it even has multiple cells). I have a spare, so maybe I'd be up for this. Krynj (or anyone), if you have the HTC Hero, try charging your battery pack with it, see if it exhibits the same behavior on the Hero itself. If it doesn't, then try putting it back into the EVO and see if after a night of charging, it still drops 10-15% after disconnecting it from the AC.
The reason why the battery dies so fast has something to do with the memory card. Charge your phone and take the SD card out and watch it stay at 100% for a long as time. Then do it again with the SD card in and watch it dip down fast.
Apple laptops don't charge unless battery is below 90%. If you plug in the AC and the battery is above 90%, it will just run off AC power but I don't think the battery drains any then.
My battery life has been less than stellar, but I didn't notice it dropping 10-15% instantly off the charger. I did notice that it'd drop about 10% after driving to work with xiialive streaming, which was unusual to me. The battery would start running out after about 9 hours at work. I'd be in the yellow by the time I got home, and the battery would be complaining for a charge in the evening. So that's roughly 12 hours I would be getting out of the phone after normal use.
Since I'm suspecting an issue with the charging circuitry, I just recently tried charging my battery with the Hero. After it was fully charged, I put it back into my EVO last night and haven't charged it since. It's been running 13 hours, and is still nearly full green. The charge is at about 70%. I've been trying to graph the discharge all day too. It only dropped to 87% over night, dropped to 80% when I drove to work (xiialive), and then down to 74% after I spent some time setting up icons and modifying my home screen. This is...hands down a butt ton better than the past week.
I'm not using 4G.
WiFi is off.
3G is on.
GPS is on.
Not running a live wallpaper.
Sync is running at default settings.
Widgets that could be updating constantly:
I have the Clock/Weather HTC widget running.
I have the Dictionary.com "word of the day" widget.
I have the Friendstream Widget running.
Craigslist Craignotifica app is running, set to notify me with search results.
The results are inconclusive though. Yesterday, I wiped and re-flashed DamageControl 3.2.x from scratch (backed up all apps with Ti-Backup, this means Android Market won't be notifying me if there are app updates -grumble-). So, somewhere between re-flashing and also charging my battery with the Hero caused this turn around.
apollooff320 said:
The reason why the battery dies so fast has something to do with the memory card. Charge your phone and take the SD card out and watch it stay at 100% for a long as time. Then do it again with the SD card in and watch it dip down fast.
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Interesting.....Will have to give a try. Will report back later.
I'm waiting for some definitive results with the "use another charging device or battery" method. It seems that the EVO just sucks at recharging the battery since people who have used another phone or a separate charger seem to report better results.
I leave my phone off at night and charge it - when I turn it on in the morning it still drops 5-10% in the first 20 minutes. But during the day it drops REALLY slow, so I still can get about 13-16 hours before 15% easily.
I have manual account sync, 3g only, wifi at home, usually gps is off, auto backlight settings for screen, and I don't run too many apps in the background, I just use them when I need them.
Has anybody found a solution to this? It's really starting to bother me. I've noticed that I don't seem to have the issue if I charge -> recovery -> wipe battery stats -> reboot. That kind of leads me to believe that something is inaccurate about the battery stats and the phone instead uses the actual raw value provided by the battery instead of whatever it is that it does with the battery stats.
I can tell you this, I bought two of the cheap battery chargers off of ebay and I have two OEM evo batteries. I don't even plug my phone in anymore. I get an hour of standby at 100% from those chargers and it falls instantly when charging from the phone. I just run them down then swap them out. I couldn't be happier and they are only like 10 bucks each with 2 batteries each.
Sent from my PC36100 using XDA App
jnewkirk10 said:
I can tell you this, I bought two of the cheap battery chargers off of ebay and I have two OEM evo batteries. I don't even plug my phone in anymore. I get an hour of standby at 100% from those chargers and it falls instantly when charging from the phone. I just run them down then swap them out. I couldn't be happier and they are only like 10 bucks each with 2 batteries each.
Sent from my PC36100 using XDA App
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can you post a link or ebay or where ever u bought it from?
Try this I'm doing it from the phone
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=250641711190&ssPageName=STRK:MEWNX:IT#ht_1991wt_913
Sent from my PC36100 using XDA App
apollooff320 said:
The reason why the battery dies so fast has something to do with the memory card. Charge your phone and take the SD card out and watch it stay at 100% for a long as time. Then do it again with the SD card in and watch it dip down fast.
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If you have apps on your sd card that are running then yes that could be the case. SD cards need power to work but I dont know how much they draw..
Hey guys...I have updates to kit kat 3 times since it has came out...I have issues right now with my phone that I am not sure if it is due to kitkat or what..
I have HORRIBLE battery life now...Literally lasting like half a day. On MJE it was not like this. Also, for some reason, it is taking FOREVER to charge, and it will not charge if hooked up to a PC very much at all...used to it would charge the phone, now it just keeps it at the same percentage, or drains it further.
I have tried eclipse rom and baja rom and they seem to both have the issue.
Maybe your battery is toasted. Left your phone in a hot car lately? Baking lithium batteries tends to make them slow to charge and fast to die. You could get another battery and try it (don't get a no name aftermarket one unless it's like a Zero Lemon or something respectable).
If it's not the battery then your charging circuit could be going bad. Worse case scenario you get a warranty replacement and have an extra battery.
Another thing to consider is that a laptop or computer will typically only charge the phone at 400-600mA. That will take 6-8 hours to complete. If you recently switched computers it could be outputting less power. Find a wall charger rated at 2000mA and try that. Charge should be complete from 0% to 100% in 2-3 hours max. If it takes much longer than that, you have a dying battery or bad charging circuit.
adoublearonn said:
Maybe your battery is toasted. Left your phone in a hot car lately? Baking lithium batteries tends to make them slow to charge and fast to die. You could get another battery and try it (don't get a no name aftermarket one unless it's like a Zero Lemon or something respectable).
If it's not the battery then your charging circuit could be going bad. Worse case scenario you get a warranty replacement and have an extra battery.
Another thing to consider is that a laptop or computer will typically only charge the phone at 400-600mA. That will take 6-8 hours to complete. If you recently switched computers it could be outputting less power. Find a wall charger rated at 2000mA and try that. Charge should be complete from 0% to 100% in 2-3 hours max. If it takes much longer than that, you have a dying battery or bad charging circuit.
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Thanks for the response!
I actually bought a new battery the other day as I was clueless as to what was causing this issue. It is doing the same thing, which tells me it is either something to do with my phone or the ROM's themselves. I seriously cannot get a day out of my phone with normal use...Used to I would have around 40% left and I was using my phone a heck of a lot more than what I am using it now. My phone will sit plugged into my PC or plugged into the wall at work all day...When I get off at 5...By the time I go to bed at 12-1am I am getting alerts about battery.
It charges up to 100 percent though...This I don't get...I have only tried 2 roms on the NC2 and I have tried this a while back when it first came out with a rom but dont remember which one it was...The phone will randomly start chugging super slow and I will have to reboot it in order to get it do do anything...It will get to the point it takes 10+ seconds to load the power menu when I hold the power button. This has ONLY been an issue with NC2. I have ODIN'd back and upgraded all the way through and still had the same issues multiple times.
I don't understand why this did not do this on MJE but does on NC2. I was running Baja prior to NC2 on MJE without any issues. I am pretty tech savy, I am a network administrator...I have had many Verizon phones, and flashed/rooted several. I am not an expert, but I am fairly confident I am doing everything right...I don't know what I would be missing.
I could do a warranty claim through Verizon...Problem is, they give you remanufactured phones...I want to be dang sure it is an issue with my phone, as this one I got new from Verizon, and not the NC2 build iteself. Would it still be the charging circuit if it charges to 100% still? I have a wireless charger that I use when I am at home, and I just got it not long ago...does that bypass the charging circuit, or does it still use it? This was after I was having issues.
So I had this 910C for a while. Still love this phone but recently the stand by time kept decreasing. This was my second battery but I used fast charging, so I thought what the heck, I will just buy a new one.
Well I did, and the stand by time is just as bad. Almost half my battery is gone by the morning, and the battery barely wants to charge as well. (it's like the phone is cold and the charger is also just lukewarm.)
So what the heck?
Is there a known hardware defect on the Note 4 for this?
Even if I could replace the phone (but why when it works great otherwise), I would still like to keep it around as a secondary device.
Any ideas?
Ps.: Now when I was writing this, my phone also got quite hot but the AUKEY portable charger is cold. My percentage was 16-17 and it could not go higher.
Well, after long hours of charge the new battery does show 100%, but when I make a call the phone gets extremely hot. Like it burns my face.
This morning I watched like 5 minutes of Netflix and that ate ~20% of my battery.
The battery does not get hot, is not bulked up, it's very hot around the main chip...
Using latest Samsung OS btw, don't even have root installed atm.