Database Info

Nexus S 4G extreme battery drain when powered completely off

I don't get it. This morning on my way to school, I'm using my Nexus, sending a couple of texts and listening to music, yeah. So then when I get to class I power my Nexus S 4G off, I'm talking about holding power and pressing power off, off.
I turned it off next hour and my battery literally drained itself from a good 95% charge this morning to a 63%. The hell happened here? The phone wasn't even on!
Sent from my Nexus S 4G using XDA

I've seen this a couple of times, vampire drain so long as the battery is attached (phone on/off irrelevant). Never got down to the root of the problem, i believe everyone who has had it ended up calling up samsung to get this sorted as it would be a hardware issue no doubt.
However, do test it again, as follows.
Control Test:
-Take battery out of phone, noting charge
-Sleep
-Put battery back into phone, noting charge
Vampire Test:
-Turn phone off, noting charge
-Take out battery, wait 2 minutes, replace battery
-Leave phone off and sleep (for the same amount of time preferably )
-Put battery back into phone, noting charge
No touching the charger 1 hour prior and before turning on. If there is a noticeable difference between the two tests, call samsung ASAP. Hopefully you're still under warranty.

Definitely a hardware fault
Harbb said:
I've seen this a couple of times, vampire drain so long as the battery is attached (phone on/off irrelevant). Never got down to the root of the problem, i believe everyone who has had it ended up calling up samsung to get this sorted as it would be a hardware issue no doubt
Click to expand...
Click to collapse
I have exactly the same problem and proved it to be hardware thanks to your vampire test. (This was only after scrubbing through new apps I had installed to see if they were the cause, scrutinizing battery stats, installing a couple of different ROMs, and complete factory resets and everything - nothing solved it.)
My phone was working fine, then one day, a few weeks ago now, I noticed a sudden battery drain and instead of a day's worth of moderate use, it wouldn't last 5 hrs. Finally did the vampire test after seeing this post and discovered that with the phone completely powered off the battery would drain to nothing in < 6hrs. I verified this behavior with two batteries. The phone gets quite toasty as well, so it's got to be some sort of hardware short circuit causing a constant load on the battery.
Samsung said "send it in for repair" - I haven't done that yet, need to find out what that might cost compared to a new phone. (I'm using a company supplied phone meanwhile.)
Too bad, because I loved my Nexus S - perfect size and shape compared to all the new mini tablet phones out there.

Overheating phone, owner (me) freaked out

I have a Motorola Droid 2 Global running CM7. It works fine, other than the usual quirks of a custom ROM, but it gave me a bit of a scare yesterday. Here's what happened:
- Battery was low, 28%-ish, because I hadn't charged it for 2 or 3 days
- Plugged USB from the netbook to charge it (I lost its AC adapter somewhere in the junkyard that I call my home)
- Unplugged it after only a few minutes because I had to go out in a hurry, battery had reached 30 or 31%. Dropped it from a height of about 50cm while doing so; a bundle of wires cushioned the fall (the phone has survived *much* harder falls)
- Stayed out about 20 minutes, nothing unusual to report, phone working fine
- Came home, put it on the desk, went about my business for about half an hour
- Found it blinking red, only noticed because a notification (stupid Astrid Task reminding me I should use it) made the screen light up
- Grabbed it and it was *hot*, hotter than it had ever gotten before and way more than anything this small has a right to get. Battery was down to 1%.
- Fearing a short I panicked and pulled the battery, then left everything to cool down.
Well, a short it wasn't otherwise it would have stopped working entirely; rather I think for some reason all of the hardware was working 100% constantly, though I'm surprised at just how much heat that can put out. There was nothing weird about the phone's behaviour up until this. A software bug? It had a really long uptime, something like a month and a half without being turned off (I keep it in airplane mode at night)... I've heard that Android in general and custom ROMs in particular can freak out if they're left unrebooted for very long. Otherwise it would have to be a hardware problem, but it's a weird hardware problem that leaves a phone working even while it bakes itself.
I'm recharging it right now and no abnormal heating is going on.
W, I ask, TF?

I feel your panic. My HTC Sensation can heat up even from browsing the web to around 40 degrees centigrade Sometimes eve too hot to hold.
Sent from my HTC Sensation Z710e

Got an Optimus 2x that gets way hotter when using than the Desire it replaced. It also has a cheap Chinese battery which I strongly suspect does not work as it should. Perhaps your battery is giving problems and needs to be replaced or there was a temporary problem with the charging circuitry?

[Q] Is my phone dead? :(

1. The phone won't turn on
2. The charging indicator doesn't light up when I try to charge the battery.
3. One of the sensors on the top left turns dim red in color when I connect the charging cable
4. I can't hard reset either
thanks

Did the battery die all the way? Or did you flash a radio without checking the md5? If its a borked radio install say hello to a 500 dollar paper weight if its the battery your gonna have to charge it in another phone cause I'm not sure if cwm 5.0.2.7 has powered off charging
Sent from my myTouch_4G_Slide using Tapatalk 2

Yes we need a couple of info first. Also we need every information we can get in the last events before the phone got bricked. Like what did you do? what ROM? What's the status of the phone? Battery?
The more the details the better we could assist you.

Sounds like when my first Mytouch 3g broke, it would turn on the first couple of times going into a bootlope at the HBoot. It also didnt respond to charging or any other battery i tried.

Thanks for the reply strapped. I haven't flashed a radio. I did flash the virtuous infinity rom though. I'm not certain if that affected the radio. I did, however, let my battery die all the way. Do you know why one the sensors on the top left corner turns dim red when I connect the charging cable?

CJ_ said:
Thanks for the reply strapped. I haven't flashed a radio. I did flash the virtuous infinity rom though. I'm not certain if that affected the radio. I did, however, let my battery die all the way. Do you know why one the sensors on the top left corner turns dim red when I connect the charging cable?
Click to expand...
Click to collapse
Oh crap the battery die all the way problem
I think your battery is dead.s
Saw dozens of problems like this on the my previous device's forum.
Li Ion batteries have this fuse inside it in which it trips off when the battery gets discharged to a certain voltage. If it does your battery goes into a suicide mode in order to protect the phone.
basically the best thing to take good care of your battery is not let it drain lower than 40% and not fully charge it to 90%.
discharging it too low drains it's lifespan drastically. While charging it too high also drains it's lifespan.
Over-discharging Lithium-ion
Li-ion should never be discharged too low, and there are several safeguards to prevent this from happening. The equipment cuts off when the battery discharges to about 3.0V/cell, stopping the current flow. If the discharge continues to about 2.70V/cell or lower, the battery’s protection circuit puts the battery into a sleep mode. This renders the pack unserviceable and a recharge with most chargers is not possible. To prevent a battery from falling asleep, apply a partial charge before a long storage period.
Battery manufacturers ship batteries with a 40 percent charge. The low charge state reduces aging-related stress while allowing some self-discharge during storage. To minimize the current flow for the protection circuit before the battery is sold, advanced Li-ion packs feature a sleep mode that disables the protection circuit until activated by a brief charge or discharge. Once engaged, the battery remains operational and the on state can no longer be switched back to the standby mode.
Do not recharge lithium-ion if a cell has stayed at or below 1.5V for more than a week. Copper shunts may have formed inside the cells that can lead to a partial or total electrical short. If recharged, the cells might become unstable, causing excessive heat or showing other anomalies. Li-ion packs that have been under stress are more sensitive to mechanical abuse, such as vibration, dropping and exposure to heat.
Click to expand...
Click to collapse
maybe you guys should read this.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

Cheers guys. Here's every bit of information I can recollect
A few days ago I created a nandroid backup and formatted my sd card via the PC.
I flashed the latest version of CWM recovery
I flashed the virtuous infinity rom 1.33 alpha v3 and then flashed the 1.35 beta 1 update.
Then i copied some music on to the SD card and installed a couple of apps.... nothing out of the ordinary.
The phone worked fine the last couple of days but I don't remember letting the battery die all the way. I should add that I have a dodgy battery; a couple of months ago my dear girlfriend spilled her drink and beer went in to back of my phone... since then the keyboard doesn't work (some keys work but its basically dead) and the battery has been affected as well since it now only lasts 3-4 hours after a full charge....but this issue can't have caused the problem I'm now having because the dead keyboard and dodgy battery have been around for a few months...
Last night, however, I think I let the battery die all the way and at some point, when I tried to turn it on, the phone vibrated as it does when you hold the power button, however, the screen didn't turn on. Since then, nothing has changed. When I connect the phone to the PC, it makes a couple of "connection" noises but I can't access the SD card or contents.

by saying latest CWM is it the 6.0 touch based CWM by chance?

sorry mate, i meant 5..0.2.7.

That's the CWM I'm using so it's safe. I'm also on latest VI for weeks without problem.
So it all points out to your battery.
Phone vibrating to power button means it's responding perfectly. Not sure about the light on the sensor only htc technician can tell.
But what I can say is if your trackpad button lights out red always then you got a brick on your hand.

Nope the trackpad isn't red so I guess that's a good sign. I've ordered a new battery and should have it later this week. Let's see if that fixes the issue. Will report back. Thanks all!

So, a new battery has arrived, however, it hasn't helped as the phone won't charge (no orange light) or turn on...... Since I live in Australia, I don't know anyone else with this phone. Is there any other way for me to revive my brick of a phone?? Thanks

CJ_ said:
So, a new battery has arrived, however, it hasn't helped as the phone won't charge (no orange light) or turn on...... Since I live in Australia, I don't know anyone else with this phone. Is there any other way for me to revive my brick of a phone?? Thanks
Click to expand...
Click to collapse
Get a universal charger for your battery.
Sent from Spaceball One.

This is a rough situation. Even with my DS I've had situations where nothing would happen when I tried to restart it, in particular when I let the system run all the way down. It is as if the battery needs to have some charge for it to charge more. I have three batteries though (the stock & two Anker 1900's) so when this happens I just swap out the battery with one that I charged in the external charger, and I haven't had any real issues with them long-term. Since you bought a battery, what battery was it, and do you think it was charged when you got it, and do you have an external charger to verify that the charge is solid when you put it back in the phone? Your phone may be completely dead however, but at this point, I don't think anybody on the thread really can tell. This make sense? I don't want to say, "buy a set of Anker 1900's with an external charger" but it was cheap enough vs. the cost of the phone, and the DS does seem to be a good one overall.

Hi All,
So I got an external charger for the battery and it arrived yesterday. I then proceeded to charge the battery and hours later, no luck. The phone still doesn't turn on. When I hit the power button, one of the sensors on the top left turns red slightly, shortly after which the phone vibrates. However, it doesn't turn on.
Where do I go from here?
Thanks

have you tried to disassemble your phone at all? you said liquid was spilled in it, could take time for corrosion to turn up. maybe a little electronic parts cleaner or rubbing alcohol may help out

Nope I haven't tried to disassemble it yet but is that the only option remaining? If yes, I might have to give it a go because this phone is now as useful to me as a brick, in its current state.

[Q] Charging and battery indicator

Hi everyone
My problem is.. my DS started to charge slowly.
Now it doesn't really charge slowly, If I check the voltage, I will get like 4220mv but as soon as it reaches that, the charging graph just goes flat.
If say I have charged it to 70% and it started going slow. i switch it off, place on the charger, and the lamp goes green. I turn it on, and it is showing 100%.
I have tried calibrations, diffirent kernels, wiping, factory resets e.t.c.
Another thing is that if I will run a v6 battery calibrator,it will show that actually I should have a 100% charge although a phone is showing only 70%.
So the summary: Phone charges normally when off (when recovery monitors charging), showing the correct voltage when on... But showing the wrong percentage if on charge.
Also sometimes if the battery is like 14% left. And I turn the phone off and then on again, it will show 22% bearing the same voltage as when it was 14%.
Question: Is there any way to tweak the battery indicator so it would show % values same as the v6 calibrator does it or is it a hardware fault, if yes, which part of it ?

This happens to me on my older (original) battery, but not my new one. I bought the second battery when this problem started happening. So, I think it's just a symptom of an old battery.
By the way, if you leave it on charge long enough, it will eventually jump up to 100%.
Other than this weird behaviour, it has no real impact on anything.
Sent from my Nexus 7

Thought so, mines been acting similarly lately, but strangely enough it seems to be getting better

I think I found out..
I actually purchased a new battery recently, because my old one was jumping like crazy and started discharging in a few hours..
This new battery I bought from a mobile repair shop.
It is a cheap chinese battery with no name, anyhow I just took it out to take a look at it...
And guess what, it sais 1200mah..
Can the phone be confused because of that ?

Z3 Battery Madness (1%/50%/100% Cycling constantly)

My battery life keeps bouncing between 1%, 50% and 100% and doesn't show anything else, you can be looking at the screen and you randomly see it flick between all three values and even more weird, the battery menu is no longer listed in the settings menu and I have no way of knowing what amount of charge my battery actually has.
This morning the phone went off saying low battery (whilst also saying 100%) and when I turn it back on it shows the low battery symbol in the centre of the screen and does not boot-up, great, the battery must be dead. I put the charger in and the red LED light comes on and battery low indicator come on for two seconds, then switch off and endless repeats no matter what I do..
I left it for an hour doing that and turned it on and used the phone for 30 minutes without any problem, then it turned itself off saying low battery, and started doing another loop of the low battery and red light in standby mode round and round again even though it wasn't plugged into anything. I pressed the reset button and after that I couldn't turn on as just a standard, battery low message.
I did a repair of the phone, which surprisingly was able to be carried out despite the fact that the phone wouldn't turn on because of "low battery" before I did it (which makes me doubt it is low) and the moment I turned the phone on after the repair it was still "Low Battery" and refused to turn on, which is somewhat strange bearing in mind it clearly had enough battery for a repair.
I left it for 4 hours charging and I turned the phone on and it operated for an hour in a factory reset mode no problem, however the indicator cycling was still going on. I plugged the charger in and the sound for charging was made, but the phone showed as not charging, despite the fact it made the sound that it is (I think it is actually charging but nothing to indicate ti is)
Again I go into settings and there is no battery menu there, if I search for it using the hourglass it tells me no battery data is avaliable. I search for Stamina mode and put it in Stamina mode and it refuses because just when I hit it, the battery reader says 1% and it says battery is too low. With some good timing I manage to press Stamina mode when it was on 100% and now it's in Stamina mode with 942 hours remaining,, the phone has been on for 3 hours now and now says 950 hours remaining.
Meanwhile the battery gauge continues to cycle 1%/50%/100% all of the time.
Has anyone seen this before?

I did not have this exact same issue, but Battery menu disappeared and battery would mostly show 50% (and very rarely the real data).
Got my battery exchanged now, everything back to normal now. Might be Sony used crappy batteries (though as long as they don't explode I'm somewhat happy).

I sent it back to Sony and I am now am about to go into a third week with no phone.
For the last week they have been waiting for stock to exchange the phone, since they have no stock (no joke) I am still waiting and they cannot tell me when they will get stock.
The fact a mobile phone company have no stock of phones, is pretty funny.