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I have charged my Nexus One yesterday for the first time. I live in holland so i had to use my USB cable, and the power adapter that came with my HTC hero to plug my USB cable in.
After the phone was charged 100%, i disconnected it from the charger and only downloaded + added a widget to my home screen. After i did that the battery was already down tot 97% :O:O
Is it defective ?
i noticed having to complete a few charge cycles.. charge fully, use it till dead, charge again
now it seems to hold out much longer
Hmm ok i'll try that. But did yours also drain this fast?
what setting is your screen on? seriously though, im sure some other battery experts here would know, but i think they take a few cycles to get to maximum efficiency
malicious85 said:
what setting is your screen on? seriously though, im sure some other battery experts here would know, but i think they take a few cycles to get to maximum efficiency
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What do you mean with screen setting, and what should i put it on?
Sorry totally new to the phone hehe
I've noticed this too. However as soon as the battery reaches around 50% it takes a lot more to drain so it evens out in the end I guess
teihoata said:
I've noticed this too. However as soon as the battery reaches around 50% it takes a lot more to drain so it evens out in the end I guess
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Hmm ok so it also went that fast on your phone? i have been using it for about an hour now and its down to about ~90% =\, concerns me a bit.
Found out something else, concering the usage of the screen. When i look here:
Menu -> Settings -> About Phone -> Battery Use
The phone tells what uses the battery the most or something, but the strange thing is that it says:
Display 55%
Isn't that very high? Maybe that is causing my battery to drain so fast
Battery meters are not an exact science. Its using what it knows about the battery's state to guess of how much % is remaining. The battery meter will need to be calibrated once, and then overall battery should improve with your next normal 3-6 full charges.
Again, you do not need to and you shouldn't repeatedly drain the battery to 0, only once is this needed to set the phones battery meter, unless you clear it (possible within amon ra's bootloader).
As for your observation, yes that is completely normal, there is not a whole lot of definition within 3% of battery as far as displaying it. What the real picture? Enter in #*#*4363*#*# on your dial pad and then go to battery information, and you'll see the accurate voltage. (this is also accessible from "spare parts" if you have it)
Nipje said:
Found out something else, concering the usage of the screen. When i look here:
Menu -> Settings -> About Phone -> Battery Use
The phone tells what uses the battery the most or something, but the strange thing is that it says:
Display 55%
Isn't that very high? Maybe that is causing my battery to drain so fast
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Click to collapse
All %'s here are vs the amount of time on battery (shown at the top in h:m). If you just unplugged your phone and you go looking here, you'll see the display % VERY HIGH... because the screen has been on the entire time its been unplugged
Its a % after all of the usage since last unplugged.
i've noticed my battery life is much better since i got the desktop dock.. lots of people charge until the light turns green then immediately grab it and start using..
leave it for another hour or two and it seems to get much better.
dont know if anyone else has noticed this but the top corner indicator light turns green once the battery goes somewhere over 90%, leaving it charge longer will get you to 100
malicious85 said:
dont know if anyone else has noticed this but the top corner indicator light turns green once the battery goes somewhere over 90%, leaving it charge longer will get you to 100
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Good point, I did notice this by accident a few times.
Nipje said:
What do you mean with screen setting, and what should i put it on?
Sorry totally new to the phone hehe
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You probably found this by now, but one flick to the left and you should have a widget for WiFi, GPS, etc. The far right one toggles 3 levels of screen brightness. The brightest two settings really suck down battery.
just a tip, when you are draining it to recalibrate the battery, after you get to the point that the phone shuts off, boot into the bootloader and run that thing till it completely dies... i did this for my phone, sat it in bootloader with a bright ass screen for like 15 min before it finally finished off... get every last ounce of juice out of it before you start charging it back up
Hmm thanks for al the reactions guys. I'm going to recalibrate my battery now, and lets see if that helps a bit .
Then i have a other question, its not about my battery but since i already have a open topic i dont want to create another one .
Can anyone of you test the following:
When you are calling with someone, and your calling volume is on the maximum (so the volume of the speaker that you hold against your ear). Can anyone notice a little crack from the speaker when the other person talks a bit loud or make's a loud noise? I'm wondering if there is something wrong with mine. With several tones the ear speaker cracks a little bit, like the sound is to loud or something?
Nipje said:
Hmm ok so it also went that fast on your phone? i have been using it for about an hour now and its down to about ~90% =\, concerns me a bit.
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Yep sounds about the same on my phone, dont worry about it lol
The draining thing is from the old nickel days, the lithium batteries are made for daily use so just treat the phone as you would normally. The battery will get better as time goes by.
Also I am not having that problem with the speaker
Hmm, I have my device since last week (Netherlands) and the battery usage is frightening. Sucking it dry in about 24 hours. I haven't let it die out completely though: I thought lithium batteries were not supposed to be used that way. Ni-Cad batteries were used that way.
Ah, see here:
Guidelines for prolonging lithium-ion battery life
Lithium-ion batteries should never be depleted below their minimum voltage (2.4 to 2.8 V/cell, depending on chemistry). If a lithium-ion battery is stored with too low a charge, there is a risk that the charge will drop below the low-voltage threshold, resulting in an unrecoverable dead battery.[citation needed] Usually this does not instantly damage the battery itself but a charger or device which uses that battery will refuse to charge a dead battery. The battery appears to be dead or not existent because the protection circuit disables further discharging and there is zero voltage on the battery terminals.
Lithium-ion batteries should be kept cool. Ideally they are stored in a refrigerator.[citation needed]
Aging will take its toll much faster at high temperatures.[citation needed]
[edit] Prolonging life in multiple cells through cell balancing
Analog front ends that balance cells and eliminate mismatches of cells in series or parallel significantly improve battery efficiency and increase the overall pack capacity. As the number of cells and load currents increase, the potential for mismatch also increases. There are two kinds of mismatch in the pack: state-of-charge (SOC) and capacity/energy (C/E) mismatch. Though the SOC mismatch is more common, each problem limits the pack capacity (mA·h) to the capacity of the weakest cell.
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So, if you want to brick your battery, by all means, suck out all the power.
i have a mytouch but i think the things i do can be used with all androids....first recalibrating is a good way to get a fresh battery...then the brightness also helps along with any wireless things u dont use like wifi gps etc.. they should be turned off an brightness should be low...i have downloaded a app lately called automatic task killer..i think this is better than any other task manager because other task managers dont kill apps wen phone is on standby ..apps r still running wen screen is off an automatic task killer kills them..i think u should download this and also have a task manager to kill apps wen u use the phone..another thing is charging the phone wen its completely off..wait until the the light turns green then leave it on for another hour or two then turn it back on....i have seen an increase in bettery life by doing all this...any one esle have any tips ..let me kno
guys,
i have notices that the phone is not showing me any Battery critical notification !! i have fully charged the phone and waited until the phone say goodbye without any Battery critical notification.
any help ??
You have a battery indicator on the top (when you press on the clock it will show up). Then, when battery is critically low, the phone reminds you to charge the battery with a sound and a message on the screen.
In addition, the battery indicator on the top is now permanently visible.
skycamefalling said:
You have a battery indicator on the top (when you press on the clock it will show up). Then, when battery is critically low, the phone reminds you to charge the battery with a sound and a message on the screen.
In addition, the battery indicator on the top is now permanently visible.
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thank you for you post but I have not experience what you have mention. The battery has dry out without any notification and the battery did turn red or even stay visible...
Also, no message show in phone to alert me a out it
Nowaynoway said:
thank you for you post but I have not experience what you have mention. The battery has dry out without any notification and the battery did turn red or even stay visible...
Also, no message show in phone to alert me a out it
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This is strange, the phone does tell you when the battery is running low, that's for sure.
So either you have a faulty device/battery, or the software is broken (maybe try a hardreset) or the power button has been pressed by accident (and the battery is still full).
hmmmmm.... I think I didnt see a notice either...
Is it possible that the message pops up silently and then goes away after few seconds? So if you have the phone in your pocket, you wont know about the battery?
Or maybe it is manufacturer related? What phones do you guys have? Mine's omnia.
I have Samsung i7800 Omnia 7
I also have an Omnia 7.
The message comes with an acoustic notification too, but surely you could miss it, it's just a short sound.
BUT when the battery is running low there is the battery icon in the upper bar. This icon is permanently visible when the battery's low so you should see it everytime you look at the screen.
Guys conformed,
i can now see the battery visible when it low and i got the message alerting me of low battery.
What i did is i have switch the mobile off, take the battery out, then i have put is again and tune the mobile on. I have waited until the battery run out and i got the messages and battery visible.
thanks for you support
So I did the touchstone wireless charging mod and about 2/3 of the time, everything works great. For the remaining 1/3 of the time, something weird is happening that I'm wondering if anyone has any insight into.
In these instances, I'll put the phone on the palm base and it plays the sound and gives me the notification message saying it's wirelessly charging. However, the battery continues to drain. For example, I put it on at 44% battery life and I came back 3-4 hours later with the phone at 41% battery life. The notification bar showed it was indeed charging.
When I look in SystemPanel, it shows "System Processes" as using a major amount of battery for those 3-4 hours. Inside of it, it says "irq/343-max7769" as the top system process hogging CPU power. When I look at CPU usage, it was fixed at 30% for the entire time I was charging. Soon as I took it off the charger, the CPU usage immediately went down.
Anyone have any ideas?
For reference, I'm running ForceROM 2.3 (yes I know I haven't upgraded yet) with the "KT SGS4 (6/10/13)" kernel.
Anyone have any thoughts?
As a side note, I've noticed if I touch the screen for a few seconds after wireless charging starts the problem doesn't appear to happen. I'm going to test some more to see.
None of this happens when charging with a cable.
Never mind, just a placebo effect. Back to starting point.
Attached are two pictures of the same screen (one just scrolled down). You can see on the battery graph how it continued to drain even after charging started and at that same point it was a solid 30% cpu in the other screenshot.
1-2ish hours later the battery shot up.
Edit: dumb client wouldn't let me attach the second image...
I've have a zerolemon 7500mAh extended battery. I need to run it completely flat every month to help keep it correctly calibrated. this isn't that easy when 5% on this battery is closer to 15% on the standard one. needing to have it useable makes things difficult, so I'm wondering if there are any mods to files I can make to stop the phone entering power saving mode at 5% and also anything that will let me run past 1% on kitkat..
the later has a module in xposed, but it doesn't cover kitkat.
I'm rooted and happy to do it myself if something doesn't already exist for it..
Are you sure that you need to run it completely flat? The technology inside the battery gets damaged when you run it flat. The normal battery gets callibrated by charging it to 100% pulling the battery out and then charge it again till 100%.
Lion battery's get damaged by 3 things:
- Heat
- Age
- Discharging to 0%.
maybe not entirely flat, but those are zero lemon's instructions..
googled again just now and discovered an app called rootdim mentioned elsewhere. it's primary purpose is dimming but it raises the screen light value just as well.. check http://play.google.com/store/apps/details?id=mobi.pruss.superdim for details...
Hi.
I will most likely buy a new battery, I just want to make sure the symptoms I experience are indeed the result of a bad battery.
First of all, the battery indicator goes crazy, it can show me 49% of battery and suddenly tell me there is only 10% left. I am attaching a screenshot of my battery stats where those spikes are visible.
Second problem, I very often can't charge the phone. I connect the charger, and the notification LED doesn't light yellow, instead, the whole battery menu just disappears from the settings so I can't access it... And after a few hours it might begin actually charging, then the menu is visible.
Battery temp always shows -30 degrees celsius, which probably means the sensor is faulty.
Is it the battery, or might be something else?
Thanks.
romitkin said:
Hi.
I will most likely buy a new battery, I just want to make sure the symptoms I experience are indeed the result of a bad battery.
First of all, the battery indicator goes crazy, it can show me 49% of battery and suddenly tell me there is only 10% left. I am attaching a screenshot of my battery stats where those spikes are visible.
Second problem, I very often can't charge the phone. I connect the charger, and the notification LED doesn't light yellow, instead, the whole battery menu just disappears from the settings so I can't access it... And after a few hours it might begin actually charging, then the menu is visible.
Battery temp always shows -30 degrees celsius, which probably means the sensor is faulty.
Is it the battery, or might be something else?
Thanks.
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Try a different kernel, like HellsCore. Frankly, I've found Unleased to be buggy as $%^@. If you still get goofy performance, then at least we've narrowed it down to not being a kernel issue.
Planterz said:
Try a different kernel, like HellsCore. Frankly, I've found Unleased to be buggy as $%^@. If you still get goofy performance, then at least we've narrowed it down to not being a kernel issue.
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I too, have had problems with Unleashed. It kept my phone unresponsive to touch and very hot, with occasional reboots.
Thanks, I tried hellscore, but unfortunately the problem persists.
At first it worked fine and I thought everything is OK, but now the battery indicator jumps again.
I will just buy a new battery...
Yeah, I would try going all the way back to stock before buying a battery, but this sounds like a hardware issue.
Sent from my Nexus 4 using XDA Free mobile app