I noticed something about the battery meter.
If you power on your phone when the charger is plugged in, the battery meter shows a higher value.
If you power on your phone when no charger is connected, the battery meter shows a lower value.
And these values stay for as long as your phone is not rebooted. My guess is, the value without charger plugged in (lower value) is more accurate.
So, if you want to make your battery meter more accurate, try this:
- Disconnect your phone from the charger
- Power off the phone
- Power on the phone again (phone must be disconnected from charger)
- After phone has booted into Android, plug the phone into USB/charger to charge it again
If you could try this out and see if the observation is always true, then maybe we should make this procedure standard to get a more accurate battery meter reading.
So this may have caused the fact that my phone keeps telling me, while charging, the battery is fully charged however it says 95% as soons as its unplugged
Power off the phone and connect charger while it's off, wait for the 100% sign on the fully green battery, then unplug the cord and connect it again, you can do this a couple of times. And resetting the battery stats should also help in some way.
opica said:
Power off the phone and connect charger while it's off, wait for the 100% sign on the fully green battery, then unplug the cord and connect it again, you can do this a couple of times. And resetting the battery stats should also help in some way.
Click to expand...
Click to collapse
What I'm suggesting is a bit different.
Power off phone.
Power on phone again, without plugging anything in.
After phone has booted, plug in charger.
EDIT: I notice this difference in battery meter reading tends to happen only with the *real* charger, and not when connect to a USB port on a PC.
That is right hardcore. This also refers to post-flashing boot.
I always disconnect device as soon as flashing procedure completes.
hardcore said:
I noticed something about the battery meter.
If you power on your phone when the USB charger/cable is plugged in, the battery meter shows a higher value.
If you power on your phone when no USB charger/cable is connected, the battery meter shows a lower value.
And these values stay for as long as your phone is not rebooted. My guess is, the value without USB plugged in (lower value) is more accurate.
Click to expand...
Click to collapse
Hey,
Heres whats happening:
Lithium-ion batteries dont like it when you charge them while full. It wears them down. So to preserve batterylife it charges untill full, then stops charging completely. When it droppes down to far, it'll charge again for a bit. The phone will show full, in reality it'll be a little less. When you unplug it will drop down quickly to a more precise value. Bump-charging (disconnect, reconnect charger) works, however you are wearing the batterylife down. Could be you dont care, so it'll be youre own choice.
Older phones do not do this. They charge till full, then trickle power continuesly so it'll always be full when disconnected.
Hope this helps.
weirder said:
Hey,
Heres whats happening:
Lithium-ion batteries dont like it when you charge them while full. It wears them down. So to preserve batterylife it charges untill full, then stops charging completely. When it droppes down to far, it'll charge again for a bit. The phone will show full, in reality it'll be a little less. When you unplug it will drop down quickly to a more precise value. Bump-charging (disconnect, reconnect charger) works, however you are wearing the batterylife down. Could be you dont care, so it'll be youre own choice.
Older phones do not do this. They charge till full, then trickle power continuesly so it'll always be full when disconnected.
Hope this helps.
Click to expand...
Click to collapse
I'm not talking about the usual Li-ion full-charge effects. Also it may not be true that other phones don't do this. For sure, many laptops do this - after the battery charges to 100%, they won't charge the battery until it decreases to a certain level, say 95%.
I'm referring to the difference in battery meter reading if u boot the phone while connected to the wall charger, vs booting the phone when it's disconnected from the charger.
What you say is right, I am used to power OFF my phone & charge it at night, & when I get up, switch it ON while still plugged in. I must make it a point to remove the cable before I switch ON.
I noticed this many months ago and it persists even after flashing many different firmwares. It actually comes in handy some times. For instance when my battery is running low and i need to step out i simply plug in the charger, power off then power back on. Phone instantly jumps 30% or so. But generally i tend to power on without the charger attached so as not to stuff up the battery stats.
Sent from my GT-I9000 using XDA App
Anyway this behavior is not correct.
Samsung changed recently battery drivers in JPX sources and the problem is still persistent. I suspect it might be related to wrong battery voltage measuring point (hardware design flaw? although most problems with sgs are/were software related) or result misinterpretation.
Or their Q/A team is so clueless that they didnt notice that.
hardcore said:
EDIT: I notice this difference in battery meter reading tends to happen only with the *real* charger, and not when connect to a USB port on a PC.
Click to expand...
Click to collapse
I just tested this. 5% battery. Reboot with usb plugged in. 50%battery. The battery also seems to drain really fast after the reboot.
I am plugged in using original usb cable in a usb on the front panel of my pc...
Edit: im still plugged in and it's going down... i boot with usb at 50% leave it in and while charging the battery goes down... i left it in and now it's going 49...48...47 while charging... wtf lol
Sent from my GT-I9000 using XDA App
Lightarrow said:
I just tested this. 5% battery. Reboot with usb plugged in. 50%battery. The battery also seems to drain really fast after the reboot.
I am plugged in using original usb cable in a usb on the front panel of my pc...
Edit: im still plugged in and it's going down... i boot with usb at 50% leave it in and while charging the battery goes down... i left it in and now it's going 49...48...47 while charging... wtf lol
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
My guess is this is because the actual level of the battery is 5%, and 'cause it's plugged in it's saying 50% for some strange reason. So really you're charging from 5% up to 50% (and eventually more, but that aside), and I think the phone is averaging between your actual battery level and the 50% every time you go up 1%? Just my guess.
johanaikema said:
My guess is this is because the actual level of the battery is 5%, and cause it's plugged in it's saying 50% for some strange reason. So really you're charging from 5% up to 50% (and eventually more, but that aside), and I think the phone is averaging between you're actual battery level and the 50% every time you go up 1%? Just my guess.
Click to expand...
Click to collapse
Yeay that is what im thinking too weird stuff.
@hardcore : just tried your suggestion. I shut down with the cable plugged in. Remove it. Reboot. But my battery is still at 47... ill try to go into cwm to see if that triggers something. Or maybe remove the battery and insert it again...
Sent from my GT-I9000 using XDA App
Ok. I tried this : removed my battery, waited 5 seconds, reput my battery, reboot all with charger unplugged. Battery went from 47 to 52. So this had no effect.
Then i shut down the phone, used 3br to get into recovery (cwm) did nothing except select reboot phone now and the phone rebooted, now 12% battery.
Btw using all tweaks in your kernel except tun.
Weird stuff...
Sent from my GT-I9000 using XDA App
noticed this months back too but didnt think much about it.
i just figured the software is reading the higher voltage during charge and reporting it wrong during boot.
*could be wrong
EDIT: and the diff is quite big, increase of 20-30%
hardcore said:
What I'm suggesting is a bit different.
Power off phone.
Power on phone again, without plugging anything in.
After phone has booted, plug in charger.
EDIT: I notice this difference in battery meter reading tends to happen only with the *real* charger, and not when connect to a USB port on a PC.
Click to expand...
Click to collapse
what @weirder post is the true fact about the lithium ion charge process. your charging method is called bump charging. but that way of charging the juice wear off the battery life sooner than normal charging..
I've been checking out the battery meter source code, and I think the battery level is calculated *only* from the battery voltage. Which is quite inaccurate, compared to laptop batteries which keep track of the charge, etc.
hardcore said:
I've been checking out the battery meter source code, and I think the battery level is calculated *only* from the battery voltage. Which is quite inaccurate, compared to laptop batteries which keep track of the charge, etc.
Click to expand...
Click to collapse
This could be improved by using its temperature. Since the SoC is a function of temperature, charge history, and current evolution over the time.
[[]]
I tried the bump charging till the meter says 100% and right after unplugging from the charger the meter reads 98%. I let the battery drain up to 96% and connected my phone into a usb port of my PC and when the meter say its 100% charged, i disconnected the phone from the usb port and wallah...it stays at 100% charged and it has been at 100% even after 15 minutes...
I really don't recommend bump charging. You risk damaging your battery by overcharging. Or worse, making it blow up due to overcharging! I know it sounds paranoid but you never know...
Related
Hi every one,
As far i know, there is a BUG on every official ROM for European GSM Touch Pro2.
When your battery get full charged and keeping it plugged to the wallcharger, then your Pro2 start taking the power from your battery and NOT from the charger.
This can be checked by yourself and you will see that even with it connected, the battery in running down charge, till you unplug it and plug it again after some minutes/seconds.
Yeah, I have noticed it as well. Anyone have a solution?
Not a bug. LiPoly's do not like being trickle charged, therefore the charger turns off.
I have not verified it on the TP2 but I suspect that if you let it sit long enough the battery level would drop to some level and the charger would charge it back to 100%.
This is a rather good new if it can manage battery loads cycles...
khaytsus said:
Not a bug. LiPoly's do not like being trickle charged, therefore the charger turns off.
I have not verified it on the TP2 but I suspect that if you let it sit long enough the battery level would drop to some level and the charger would charge it back to 100%.
Click to expand...
Click to collapse
It oughta turn the charger off and run the device from the mains, though, not from the battery. Is it doing that?
godefroi said:
It oughta turn the charger off and run the device from the mains, though, not from the battery. Is it doing that?
Click to expand...
Click to collapse
No it is NOT doing that, so to me it is a BUG.
just thought i would add this
for some reason on saturday i charged my phone via usb/pc and it lasted less than 24 hrs
so on sunday i drained it and charged it vis the plug
its still going noe
72 hrs 23 mins in stanby 30 mins talk and 4 hrs 7 mins use since 17.43 on 18/10/09
is never been this good so i thought it may be the new rom
http://www.batteryuniversity.com/partone-21.htm
Lithium-ion
(Li-ion)
Do charge the battery often. The battery lasts longer with partial rather than full discharges.
Do not use if pack gets hot during charge. Check also charger.
Charge methods: Constant voltage to 4.20V/cell (typical). No trickle-charge when full. Li-ion may remain in the charger (no memory). Battery must remain cool. No fast-charge possible.
Rapid charge = 3h
also i have read some where on xda that once it reaches 100% it'll stop charging
godefroi said:
It oughta turn the charger off and run the device from the mains, though, not from the battery. Is it doing that?
Click to expand...
Click to collapse
You know of any other modern phone that runs off the mains without the battery? None of my last three phones would without the battery.
khaytsus said:
You know of any other modern phone that runs off the mains without the battery? None of my last three phones would without the battery.
Click to expand...
Click to collapse
My Kaiser will. It turns off when you pull the battery, but you can turn it right back on.
Every one is talking about battery and it's components but no one speaks about that with charger pluged in, it should supply power and by pass the battery once it is fully charged like others models do.
sounds like you all need to do warranty exchanges for that lol
Tallpap said:
sounds like you all need to do warranty exchanges for that lol
Click to expand...
Click to collapse
No, what we need is that HTC do what we paid for.
User22 said:
Every one is talking about battery and it's components but no one speaks about that with charger pluged in, it should supply power and by pass the battery once it is fully charged like others models do.
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=571606 some people here probably would help
xnifex said:
it's true, once the TP2 hits 100% it stops charging the battery & the usage time will kick in.
Click to expand...
Click to collapse
and on this thread http://forum.xda-developers.com/showthread.php?t=573037&page=4 which a guy says
mattdoyal said:
Just tried my TP2 without the battery and plugged, didn't power on. Why would they take away the ability to power on while plugged in but with the battery removed?? This was and would be a great troubleshooting step. Hey HTC, start building our phones with this option!!
Click to expand...
Click to collapse
i hope this helps
Have in mind that once the battery is fully charged, it never go to charge again till you unplug the cable of your wall/car charger... so what will hapen then???
hello anyone know about the issue with the battery ok when i charge my euro tp2 all night and when i go to start>settings>all settings>system>power i then click on the infomation tab and under last full charge i get "not applicable" and get 0 hours and 0minute for the rest
im running the offical htc 6.5 rom
To me this sounds CRAZY. So people are saying that when the device is fully charged it starts to use its battery, thats just crazy... So basically charging it overnight leaves you with "almost" full battery in the morning...
I havent noticed anything out of the ordinary, and every morning when I come and take my device from the charger the charging light is green (opposed to the orange when started charging) and the battery shows to be 100% full.
I will check this again in the morning as I havent really paid 10000% attention to it, but I think I would have noticed the weird behaviour…
noticed this since day 1. my dash didnt do this. i did notice that a soft reset will resume the charge.
This is normal behavior for battery powered devices.
When it's plugged in, the charge circuit charges the battery.
The device itself always runs off the battery when it's available, this is why some devices won't power on without the battery installed, and many devices won't power on with a failed battery installed.
Laptops do the same thing, though they can switch to AC only without losing their state.
It's a holdover I think from when electronics couldn't switch between power sources fast enough to not lose anything (I remember the original game boy would reset no matter what if you tried to switch between batt and AC). It's possible that cell phones can't make this transition since there isn't really extra space to stuff in the bits that allow this (some large-ish caps).
I've also heard that this reduces wear on the electronics, because the voltage is more reliable, but I've never seen that documented.
kay7 said:
The device itself always runs off the battery when it's available, this is why some devices won't power on without the battery installed, and many devices won't power on with a failed battery installed.
Laptops do the same thing, though they can switch to AC only without losing their state.
Click to expand...
Click to collapse
I don't think this is true for (modern) laptops. All the macbooks and thinkpads that I've owned had a feature that if you plug it in while the battery is above X% (usually around 96) it will not charge. It even gives a message saying "Not Charging" in the battery status. The battery percentage then stays constant no matter how long I use the laptop, so it is not DIScharging either. Therefore it must be running from AC. If it can do that, I doubt they would have it run off the battery as soon as it is charged to 100% on a full charge cycle. I think any time AC is plugged in, a modern laptop will run from AC rather than battery, regardless of whether it is currently charging the battery. However, that's just my theory from personal observations.
Does anyone have a link for the thread that discussed the correct way to wipe battery stats when upgrading to a new Rom? I remember it went something like drain dead, charge to full, drain dead again then charge to full and wipe stats. I can't remember the complete process. Thanks for the help.
Sent from my PC36100 using XDA App
I've seen a couple different threads on that here, one saying discharge fully then charge while powered off, and the other saying to do a full charge "conditioning cycle". I did the latter and it seems to have made a difference.
Here's what I did:
Charge the phone fully with it powered on
When fully charged, disconnect cable
After green LED goes off, power the phone off
When phone is fully powered off, reconnect cable, amber charging light should be on
When LED goes green, disconnect cable
Repeat previous two steps 10 times
After 10th cycle, boot into recovery and wipe battery stats.
I am using Amon Ra recovery which has the wipe battery stats option under the Wipe option. I never did this when I had Clockwork recovery installed, so I don't know if the option is in the same place.
Being an electrical engineer, I find this business of battery conditioning interesting, along with the Ni-Cd "memory" vs. Li-Ion "no memory" issue. If anyone has found a decent physics-based explanation as to why these things do or do not have any basis in fact, I'd appreciate a link. Yes, I'm too lazy to Google it at the moment.
Hmm, I may have to look into this again. I charged my phone all night (powered off) and unplugged it this morning. I did nothing with it this morning but turn it on and look at it, then put it in standby (quick press of power button). It lost 16% of charge in less than 2 hours!
I'm running BS1.2 with the Baked1 (low voltage/best battery) kernel.
Damn, just installed System Panel and found that my CPU is at 100% constantly!
I'm trying this now. The longest I've pushed my battery was 22 hours... and that was with 39 minutes of screen on time, lol. In standby almost the entire 22 hours....
Ok, I believe my issue was related to a camcorder problem, my CPU usage has dropped back to normal levels after fixing that separate problem. After my battery recharges fully I will see what happens with the charge.
the other methods to do "calibrate your battery" (which isnt really calibrating the battery but the battery stats of the phone so it can accuratly judge when it stops and starts charging)
1) charge the phone to full
2) unplug and use phone till it shuts off from no battery (do not plug in until it shuts off)
3) charge phone to full again with out unplugging till 100% (check under about phone > battery it shoudl say full charge there)
this should reset the battery stats.
the last method is one from HTC
1)Charge the phone for 8 hours uninterupted with power on
2) turn off the phone and charge for an additional hour
3) turn ont he phone unplug it and let it sit for 2 minutes then plug it in for an additional hour.
all 3 methods listed should help. I personally dont like the x10 method because it has the potential and basically over charges the battery to make sure it is acctually at a full charge. It is much faster then the other 2 methods though so to each there own.
Dont waste your time on...
plug/unplug 10 times. It really doesn't recal the battery.
the unplug/plug 10 times.
1. Phone on...charge until green light comes on. Immediately unplug and turn phone off.
2. Plug phone back in until green light comes on again. Immediately boot into Recovery and wipe battery stats.
3. Use the phone on battery until dies.
4. recharge phone to 100%
You are good to go!
If I tether during the day (5+ hours) a lot, is it bad on my battery? Isn't that like a constant charge or does once the LED turn green it stops trying to charge?
Thanks.
fldash said:
If I tether during the day (5+ hours) a lot, is it bad on my battery? Isn't that like a constant charge or does once the LED turn green it stops trying to charge?
Thanks.
Click to expand...
Click to collapse
the evo doesnt do a trickle charge so when the light turns green it stops, this is why you will almost always drop 1-5% battery rather quickly.
Are you sure? My light has been green for a while, and my phone battery status says 'Full'.
fldash said:
Are you sure? My light has been green for a while, and my phone battery status says 'Full'.
Click to expand...
Click to collapse
There's a lot of confusion over how the battery / charging circuit works and how it reports. My advice is to just charge until it's green and full, then unplug it. If you leave it plugged in all night, unplug it for 10 mins in the morning, then plug it back in to top off.
That doesn't really help me SilverZero, my question is only if leaving it tethered (which means connected to USB) is bad for my battery.
Well on mine i would check it every once in awhile and i would see that once it get downs to under 90% that it would charge again till it recognized that it was full again. So based on that i dont think you should have to worry about it. It seems to only draw the charge when needed. I also leave mine plugged in alot when im home so its good to go when i leave and havent noticed a loss of battery life at all.
You guys don't want the charger to trickle charge. Li-Ion does not accept overcharge, even 0.01C (15 mA on the stock Evo battery) will cause it to vent and probably combust.
So does "calibrating the battery" calibrate the phone or the actual battery?
I ask because I have 3 spare batteries, wondering if I have to do this for each of them??? They are all standard size, one of them OEM
So my s2 has been charging really slow, like today it took like 5 hours to fully charge, and when connected to charger if I'm using it it wont charge very well, like the battery will stay at lets say 20% when im using it and charging it, it might even go down more. it used to charge pretty well even if I was on it. Cuz this be the charger, or is my battery messed up?? Im using the charger that came with the phone.
Sent from Flip's SGS2
Are you charging through a usb port on your computer or ac? If it is with usb port then yes it will charge at a much slower rate. Also if you have a lot of apps running or backround data going it will also cause your charging to slow down some. I would say through usb without any apps open and backround data stopped It would take a few hours to charge say from 20%. Through AC in the same condition probly 1.5 hours. Try to reboot your phone and then plug it in to charge to see if that doesnt speed it up any. If it does then you know you have backround data moving at a fast rate and that would be your reason to slow the charge down.
Yeah I'm charging with the wall charger, not thru usb
Sent from Flip's SGS2
thats pretty weird...have you tried using another usb cable?? maybe the cable is faulty?
Calibrating the battery
elflip88 said:
So my s2 has been charging really slow, like today it took like 5 hours to fully charge, and when connected to charger if I'm using it it wont charge very well, like the battery will stay at lets say 20% when im using it and charging it, it might even go down more. it used to charge pretty well even if I was on it. Cuz this be the charger, or is my battery messed up?? Im using the charger that came with the phone.
Sent from Flip's SGS2
Click to expand...
Click to collapse
You could try calibrating the battery, maybe. To do that, turn the phone off. Charge to full (make sure it's full, by taking it off of the charger and putting it back on...the indicator should read 100% almost immediately when reattached to power).
When the battery is full, with the phone still turned off, remove the battery for about 2 minutes. After 2 minutes, reinsert battery and restart phone.
Battery will be calibrated. This may not resolve the problem of a slow charge, but will clear 'battery memory' which may have been preventing it from charging completely (and, I suspect, may have inhibited charging).
Good luck!
I was using an aftermarket wall charger and had similar results. Switched to the USB/AC converter that came with the phone and all was well.
sean is here. said:
You could try calibrating the battery, maybe. To do that, turn the phone off. Charge to full (make sure it's full, by taking it off of the charger and putting it back on...the indicator should read 100% almost immediately when reattached to power).
When the battery is full, with the phone still turned off, remove the battery for about 2 minutes. After 2 minutes, reinsert battery and restart phone.
Battery will be calibrated. This may not resolve the problem of a slow charge, but will clear 'battery memory' which may have been preventing it from charging completely (and, I suspect, may have inhibited charging).
Good luck!
Click to expand...
Click to collapse
Yes, try Battery Calibration from the market. Only works on rooted devices, and follow instructions.
Battery Calibration
abctilly said:
Yes, try Battery Calibration from the market. Only works on rooted devices, and follow instructions.
Click to expand...
Click to collapse
Actually, one doesn't need an app to calibrate the battery. If you follow the instructions above, the app is unnecessary. And the phone mustn't be rooted
YODA? ^^^^
Hey elflip88, have you found the issue yet?
I have the same problem on my HTC Amaze 4G. It's charging 1% every 3 minutes (adds up to 5 hours)
I'm also using the wall charger...oh damn, I'm starting to think I have a faulty device / battery...
yelp!
For the record Samsung devices are known to be slow at charging so with that considered.... You still shouldn't be at 5 hrs. I would find a battery stats app charge your battery over night and check the chart to see exactly how long it takes to go from 0 - 100. Make sure your batter status is good. Also check the voltage coming into your phone from your charger. There are plenty of battery stat apps in the market that will do this sort of thing. Of course make sure your battery doesn't have water damage of course too lol.
Sent from my SGH-T989 using XDA App
I've had the same problem with mine. But, I can get 1.5 days without charging and moderate usage. Charge it up, drain it, charge it back up then wipe your battery stats in recovery.
This may help if you're using an aftermarket wall charger
If you guys are having issues with slow charging using an aftermarket wall charger, it could be that the phone is charging in a USB state rather than an AC charging state. QuickCharge could alleviate your issues. The cable is inserted between the wall charger and the USB cable that goes to your phone. You can find the product on Amazon. It's the 2nd of 3rd item from the top when you search 'QuickCharge'.
I find that when I fully drain my battery and charge it, it's really slow. Once the phone has enough battery to stay on, I unplugged it and replugged it and it charges normal again.
elflip88 said:
So my s2 has been charging really slow, like today it took like 5 hours to fully charge, and when connected to charger if I'm using it it wont charge very well, like the battery will stay at lets say 20% when im using it and charging it, it might even go down more. it used to charge pretty well even if I was on it. Cuz this be the charger, or is my battery messed up?? Im using the charger that came with the phone.
Sent from Flip's SGS2
Click to expand...
Click to collapse
It's your wifi and your apps using wifi. Turn wifi off while charging. I used to charge 4 hours + on my S2. Reduced to 2 and some change when I turn off wifi.
Also, I struggle to make it through a working day with wifi on. Turn wifi off and I can do 4 days no problem.
audscott said:
I was using an aftermarket wall charger and had similar results. Switched to the USB/AC converter that came with the phone and all was well.
Click to expand...
Click to collapse
I've had the same problems using an aftermarket wall charger.
I old suggest using a different outlet if you haven't done that yet.
Sent from my SGH-T989 using xda
What? Wifi (while connected) users significantly less power than 3g or HSPA+ (4G) data..
Sent from my SAMSUNG-SGH-I727 using XDA
i had that issue once, it had to do with my ROM i imagne... i flashed a new one and i havent had a problem ever since.
i m using this wall charge and use this battery... it is working fine and no problem at all
http://www.ebay.com/itm/Anker-Battery-for-Samsung-Galaxy-S-II-from-T-mobile-
http://www.cellphoneshop.net/hdw179...ccessories&hash=item4ab527cf3b#ht_2001wt_1396
Hi guys,
I was playin Temple Run and the battery was about 5% or however close to be fully discharged. Suddenly the display was flickering, or like something this. The phone suddenly powered off.
I tried to charge the phone with the charger in the plug, but after some seconds the animation disappears, then reappears in few seconds and disappears (about when the charger animation goes to the top for the second time).
The GN is connected to the PC, and does not power off: but the charger indication is stuck at 0%
What's happened? I doesn't made something wrong!! I used to discharge my battery often!
I also wiped Battery Stats in recovery, it does not helps.
The ROM and the Kernel are inte signature. I never made overclocks or something like this. Please help me
When I detach the USB cable from GNexus it power off (like when it's normally discharged)
EDIT: Suddenly the % went to 2%.
With lithium-ion batteries like the one in the Gnexus 'like' being charged. They do not have a memory like ni-cad batteries. Severely discharging or overcharging our batteries can physically damage them. If you store the battery for extended times, leave it at 30% charge.
As to why you experienced the freaking out from your phone, when batteries get low on charge, the voltage and amperage output drops. When your phone has a low draw, you won't notice this. Under high draw like gaming, it may not be enough to power your phone. Turn it off and plug it into the factory AC charger. Let sit for at least 30 min or so. Then try to power up.
Sqrls said:
With lithium-ion batteries like the one in the Gnexus 'like' being charged. They do not have a memory like ni-cad batteries. Severely discharging or overcharging our batteries can physically damage them. If you store the battery for extended times, leave it at 30% charge.
As to why you experienced the freaking out from your phone, when batteries get low on charge, the voltage and amperage output drops. When your phone has a low draw, you won't notice this. Under high draw like gaming, it may not be enough to power your phone. Turn it off and plug it into the factory AC charger. Let sit for at least 30 min or so. Then try to power up.
Click to expand...
Click to collapse
Thanks. I charged the Nexus with the pc until 10%: now I'm using another plug chargher. Everything seems normal.
Temple Run sucks battery like a...you know.
adrynalyne said:
Temple Run sucks battery like a...you know.
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Yeah. In 30minutes of game the battery went down of about 10%. Web browsing in 3G is less battery expensive
Your battery might be damaged if its acting up when it gets low. Try not to run down to zero.
zippity doo da.
Whenever you get a chance, plug that phone in.
In the car on the way home? Plug it in.
Sitting in the office? Bring your charger and plug it in.
If its under 70% that is. A small charge will always be healthier than 0-100.
Sent from my Galaxy Nexus using XDA
i just experience the same thing i thought i burned out the phone home recharging it will help its look like it stuck on 0%
EDIT : its start recharge also
the way the screen flicker and the sound its made was just the scary
Just wondered how most people are charging there One X? Personally I always turn it off and allow it to charge until the light goes green. I've never charged it when it's still been turned on.
I've never switched off any of my android phone's whilst charging. What happens if you get a call? I also try to alternate between charging on my pc and the wall charger.
Maximus78 said:
I've never switched off any of my android phone's whilst charging. What happens if you get a call? I also try to alternate between charging on my pc and the wall charger.
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Yeah fair statement, I had thought about that. I wasn't sure if it was bad to say plug the phone in at 11pm until 7am (8 hours) charging whilst it being turned on? I assumed if it was going to be plugged in say for that long that you should turn it off.
I just plug it in - went to bed on 80% last night but fair enough I'd hardly used the phone all day (standby battery life is incredible)
EddyOS said:
I just plug it in - went to bed on 80% last night but fair enough I'd hardly used the phone all day (standby battery life is incredible)
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So you stuck it on charge just to boost that extra 20% yeah? How come you didn't just leave it until it was low?
Should of asked if people would partially charge it or if they always ensure its fully charged.. Can't amend the poll now though.
I was thinking about trying that - might do that tonight and see how it lasts...
I plug it in to a usb cable
i charge my hox every night on the wall charger while turned on. even if it has 80% left. i am to afraid that my battery level goes under 20% (i heard that falling under that level can damage batteries).
N3m3515 said:
i charge my hox every night on the wall charger while turned on. even if it has 80% left. i am to afraid that my battery level goes under 20% (i heard that falling under that level can damage batteries).
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Where did you hear that? Mines dropped to 14% before and I then turned it off and charged it and the battery still seems fine. Wasn't aware you could damage the battery if it got too low...
I killed my battery first 2 charges - never have in the past but thought I would this time
I have always charged with the phone on, all my phones since way back having an analogue Nokia mobile and never had any battery issues. Only time I have ever switched my phones off is if I was getting on a plane or the battery got really low and didn't want it to go completely flat.
Just plug it in whenever. Modern li-poly batteries doesn't have memory and charge cycle life is based on full charges.
Part charges actually increase life due to low % cycling
tsleng said:
Just plug it in whenever. Modern li-poly batteries doesn't have memory and charge cycle life is based on full charges.
Part charges actually increase life due to low % cycling
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Agreed.
One thing to note is that you should never let it completely drain the battery, the phone will switch itself off once the battery reaches critical level then it needs a charge. I'd recommend charging it when it reaches 5-15%.
Also I'd never leave it charging over night it interrupts the cycle, if I have to charge it over night I set an alarm to go of after a few hours and unplug it.
i have 3 or 4 charges from different makes-and only htc charges the quickest. the worst is usb cable and car charger. but due to usage i need to charge twice a day
Maximus78 said:
Also I'd never leave it charging over night it interrupts the cycle, if I have to charge it over night I set an alarm to go of after a few hours and unplug it.
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Dude...
I always charge overnight - purely for convenience really.
Can you explain the above to me? I'm not sure what you mean by it interupts the cycle?
How does it effect the battery ?
Thanks alot
Dean
tsleng said:
Just plug it in whenever. Modern li-poly batteries doesn't have memory and charge cycle life is based on full charges.
Part charges actually increase life due to low % cycling
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You are 100% right most modern phone battery’s don’t have memory any more so no need to worry about it, and no need to do full discharge and recharge cycles to maintain battery health, and if they do they normally tell you in warning labels or in instruction manuals, for example I recently bought a new shaver and it tells you to do a full discharge and then leave it on charge for at least 12 hours every 3 months to maintain battery life.
N3m3515 said:
i charge my hox every night on the wall charger while turned on. even if it has 80% left. i am to afraid that my battery level goes under 20% (i heard that falling under that level can damage batteries).
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batteries have safety features built in so don't worry. What for you looks like 0-1% left - what android is showing you, might be actually 10-20% as seen internally by the battery.
Also, I have completely discharged my phone once, I simply left it at 1% and waited until it shut off. Then I charged to 100%. From then on, I charge whenever I want, phone is always ON.
Ebay 2m cable (the HTC one's length is a joke).
I use a charging cable.
My friend sticks it next to his head and uses his brainwaves to charge it.
Both seem to work fine.
Im really sorry for this post. I could not resist.
You guys are ridiculous. Just plug the phone in and it charges.
Sent from my HTC One X using XDA Premium HD app