Hello everybody, I own an HD2 that is alway connected to a table cradle (connected via USB to a PC) during the day when I'm in Office. I wonder if exist an app that allows to manage the battery charging: I explain...I'd like that the HD2 AUTOMATICALLY "turns off" the charging when the battery is fully charged at 100% and automatically "turns it on" again when the battery charge reaches a given threshold (60-50-40% or something like that). If you own an IBM/Lenovo Laptop I'd like something like the power managment app. Of course the data syncronization HAVE ALWAYS TO STAY TURNED ON regardless the chargin of the battery.
Does it exist somehing like that?
Thanks and regard
Andrea
There is a setting that allows for the battery not to recharge when connected to a PC. Other than that, I completely fail to see what would be the purpose of what you are asking.
pedmond said:
There is a setting that allows for the battery not to recharge when connected to a PC. Other than that, I completely fail to see what would be the purpose of what you are asking.
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Click to collapse
thanks for your answer! I already know the setting you're talking about, but as I told early I'd like something that manages this setting automatically. The purpose is to avoid the decreasing of the battery lifetime caused by letting the battery itself "always" connected to a charging source. For example in the Laptop PCs it's better to unplug the battery when the laptop is conncted to an external power source/charging unit...
Thanks
Andrea
the dragonlord said:
thanks for your answer! I already know the setting you're talking about, but as I told early I'd like something that manages this setting automatically. The purpose is to avoid the decreasing of the battery lifetime caused by letting the battery itself "always" connected to a charging source. For example in the Laptop PCs it's better to unplug the battery when the laptop is conncted to an external power source/charging unit...
Thanks
Andrea
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Click to collapse
Most modern devices (and, I believe the HD2) actually disconnect charging when the battery is at 100%. The green light doesn't mean that your HD2 is still charging, but that it's at 100%. Therefore I don't believe you actually shorten the battery life by keeping it plugged in.
pedmond said:
Most modern devices (and, I believe the HD2) actually disconnect charging when the battery is at 100%.
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Click to collapse
I did believe it too but I have an app wich monitors the battery temperature and still when the battery charge is 100% its temperature remains "high" (35 grades degrees) as long as I keep the device plugged to the cradle. I see the same temperature value when the battery is actually charging...this fact have made me change my mind about the fact that the HD2 disconnect charghing when 100% is reached...
Its not the battery which is getting hot, it's the phone.
If I had a lithium-poly/ion battery that was reaching 35C I'd be very worried!
If your app is showing the battery at 35C, turn the phone off, remove the battery and it should be cool to the touch.
If it's hot then you have a problem.
xaccers said:
Its not the battery which is getting hot, it's the phone.
If I had a lithium-poly/ion battery that was reaching 35C I'd be very worried!
If your app is showing the battery at 35C, turn the phone off, remove the battery and it should be cool to the touch.
If it's hot then you have a problem.
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Click to collapse
you're right, it's the device, not the battery....I'll throw away the temp app!!!
the dragonlord said:
you're right, it's the device, not the battery....I'll throw away the temp app!!!
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Click to collapse
Heat will decrease the life expectancy of the battery, but so will deep charging rather than top ups, remember with non-NiCd batteries you don't get memory effect, so the only reason to do a deep charge is to recalibrate the software battery meter.
Of course leaving the battery sitting on a shelf will also degrade it's capacity, they start to degrade as soon as they're produced, so buying a spare and not using it until your original battery dies is not a good idea, better to buy a replacement battery when the original starts failing.
HTC's batteries actually seem very reasonably priced too which is refreshing.
Related
Is it possible to connect charger without battery so that i can use device all day and avoid over-charge or possible battery damage?
Beautiful just Beautiful
Guys i have another one for all of you
"Is there a way that i can use my Phone without connection so that i will have no bill charges ?"
Batteries in Tornado can (even should) be charged often Don't worry about it
Yeah, over-charging is no problem. It'll stop charging when it's full.
This does raise an interesting question, one I haven't really bothered to try but have just now become curious about. Can you plug the phone into the wall, sans battery, and use the phone still? Or will it only function, plugged in or not, with the battery installed?
Phone turns off when you get battery out :/
djsleepwalker said:
Yeah, over-charging is no problem. It'll stop charging when it's full.
This does raise an interesting question, one I haven't really bothered to try but have just now become curious about. Can you plug the phone into the wall, sans battery, and use the phone still? Or will it only function, plugged in or not, with the battery installed?
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Click to collapse
LOL, I just tried that last night, and... ohh Noo it don't even turn the power light on w/o a battery... so @Amaric: Keep charging it!
I am aware that phone is not working if you take out the battery and connect it to a charger. I was wondering if there is some kind of a workaround.
My plan was to have phone switched on for months with wireles ON too. That just can't be good for battery and it could even be dangerous.
amaric said:
I am aware that phone is not working if you take out the battery and connect it to a charger. I was wondering if there is some kind of a workaround.
My plan was to have phone switched on for months with wireles ON too. That just can't be good for battery and it could even be dangerous.
Click to expand...
Click to collapse
Do these tests, and post results
Turn off power savings on Wi-Fi and leave phone ON, doing something over the internet, just idling, so that the LCD is off. Say for example: acting as router.
Conditions:
1. Phone w/full battery -
2. Phone charging w/full battery -
How long did he battery last? How did the phone temperature change? What would you guess would happen in 48hrs of usage?
EDIT: My experience with Wi-Fi is that it drains more power than the charger output. Temperature raises substantianlly w/o LCD, gets extreamly hot w/LCD on. So what would be the options?
wird
when im booting linux and the phone is charging you can take the battery out but the phone will still be on nice
bestever said:
when im booting linux and the phone is charging you can take the battery out but the phone will still be on nice
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Click to collapse
Is this a joke? If not, then some change to a software (OS) could do the trick.
amaric said:
Is this a joke? If not, then some change to a software (OS) could do the trick.
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Click to collapse
my opinion? If it does stay on after removing the battery, then it'll do the same if you have the phone on while running Windows, and charging and remove the battery. Battery charging is not handled by OS, its handled by Hardware.
markanthonypr said:
My experience with Wi-Fi is that it drains more power than the charger output.
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Does anyone else think this is true? I think it would be unlikely that having the screen off but wifi on would use more power than the wall adapter provides.
I suspect that you could jumper the battery connections to mimic a full battery, but I am not going to try.
I think you can put resistors to mimic the internal resistance of a battery, but I wouldn't recommend it. If anything goes wrong you might burn out the charging/power control circuit which probably would turn your phone to a brick.
Oh, and the whether it charges when plugged in and using WiFi depends on your charger. I've got a 6V 2.4A (15W) charger for my phone, good luck using up all that juice with a Tornado. That thing easily charges my TyTN with HSDPA (3G), WiFi, Bluetooth and screen active.
15W is more or less what my laptop uses under normal load
Im new to windows mobile and i noticed that everytime i connect my fuze to the computer it indicates that it is charging, is there anyway that i can turn the "charging" off? because like this it kills the battery slowly.
peste19 said:
Im new to windows mobile and i noticed that everytime i connect my fuze to the computer it indicates that it is charging, is there anyway that i can turn the "charging" off? because like this it kills the battery slowly.
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Click to collapse
are you sure about that? i thought all these batteries and phones nowdays, were quite good at managing this all by themselves....
we're really still in an age where us as users have to actively baby sit our batteries?
peste19 said:
Im new to windows mobile and i noticed that everytime i connect my fuze to the computer it indicates that it is charging, is there anyway that i can turn the "charging" off? because like this it kills the battery slowly.
Click to expand...
Click to collapse
Are you meaning it kills the battery on your pc? (i assume its a laptop if thats the case)
There is an option in start>settings>system(tab)>power to stop charging when connected via USB.
Charging via USB is a great feature and im positive it doesnt DRAIN the battery on your fuze?
mrvanx said:
Are you meaning it kills the battery on your pc? (i assume its a laptop if thats the case)
There is an option in start>settings>system(tab)>power to stop charging when connected via USB.
Charging via USB is a great feature and im positive it doesnt DRAIN the battery on your fuze?
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Click to collapse
i thought perhaps he was under some sort of misconception that the battery on the FUZE keeps charging even after its full while plugged into USB, and this somehow 'damages' the FUZE battery, or slowly 'kills it' ... ur interpretation makes more sense though
Orbitrix said:
i thought perhaps he was under some sort of misconception that the battery on the FUZE keeps charging even after its full while plugged into USB, and this somehow 'damages' the FUZE battery, or slowly 'kills it' ... ur interpretation makes more sense though
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I thought so as well, I thought that the Fuze would stop the charging once full but I am not positive. I know most of my las Li-On devices still suffered from burnout but none were as fancy as the Fuze.
Makes sense that it could have just been draining his laptop faster though
i was referring to the battery of the phone, before baterries used to suffer i think the term is called "memory effect" which caused the batteries after a while hold the charge for less time, this was caused by always charging when not needed.
they say that the new batteries dont suffer so much this "memory effect" but from my experience that is not true
peste19 said:
i was referring to the battery of the phone, before baterries used to suffer i think the term is called "memory effect" which caused the batteries after a while hold the charge for less time, this was caused by always charging when not needed.
they say that the new batteries dont suffer so much this "memory effect" but from my experience that is not true
Click to expand...
Click to collapse
Lithium-ion batteries do not suffer the "memory effect" that the older batteries do. They also do not need to be drained fully a few time when you first get them to condition the battery. Draining the battery fully actually is bad for the lithium ion batteries and can significantly effect the life of the battery itself.
The original question has been answered already, and the information regarding the batteries is already available elsewhere so i am closing this thread.
My HTC universal crashes ( shuts off) after being disconnected from the charger for only a short while. I have noticed this when trying to make a telephone call and when listening to an audio book on Media.
The device is about 3 years old. The OS is Tomal version 8.5..is it an OS problem or battery problem.
I dont want to invest in a new battery if that is not the problem.
it's the battery!
It has to be the battery,see if it's bulged in the middle...means it has to be replaced.You keep using a near dead battery and one day it may leak/explode and damage your beloved Uni.Just change it.Or borrow one and see how your device performs so you can decide...
I neglected to mention that the battery shows 95 % charged when this happens. I can get back to the device if I plug it in.
Can you recommend a new battery?
rkbrouwer said:
I neglected to mention that the battery shows 95 % charged when this happens. I can get back to the device if I plug it in.
Can you recommend a new battery?
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Click to collapse
95% of not much charge is still 95% charged, its the battery. If you look on Ebay you can find batteries quite reasonable, but try to go for an original one.
Jay
Is that really true? The amount that the 95% is applied to is not a fixed amount and decreases over time? If that is so what is the purpose of something that says 95% full? How can I find out what full is?
Imagine a fuel gauge like that. The size of the tank gets smaller and smaller.
Testing your battery
The only true way to test your battery is to measure its voltage. the two larger terminals on the battery are the + and _, the _ is the terminal nearest the corner. test it with a mulimeter, if it is below 3.75 volt then charge it and test again. If it drops below 3.75 volts after a short time then it is worn out. the battery bar on the screen is only a rough idea of power left.
Hope this clears this up for you
Jay
Voltage shouldn't be dropped, it will be same even if there is no charge.
The cell's inside the battery are not capable to retain the charge and immediately returns a signal to the control circuit that he is full! Control circuit then triggers an updates to the memory chip (located under control circuit).
Polling mechanism (triggers by the driver) in the device gets the battery status directly from the memory chip and it is the main reason basically getting a false percentage.
Anyway, just replace the battery and everything will be fine then.
Has anyone tried the suggestions mentioned under XDA wiki before replacing the battery. One alternative was to discharge the battery completely by freezing it and then rechargingt it. Another was to tape the two indicator terminals.
BTW what is the effect of going into "bootloader (by backlight+power+reset button)" as mentioned in solving the battery problem undeer wiki XDAI hope that it does not mean that I have reinstall Mobile 6.1
3 years is old enough for battery, i think its your time to buy a new one.
if you want to try one of that method, i suggest you trying a tape method. i try with my batery (fals indicator) and it work.
going to bootloader for drain your battery. for me i turn on wifi and blue tooth at the same time, set band to G3 and turn GPRS on, and playing music and games. it drain faster
tomal said:
Voltage shouldn't be dropped, it will be same even if there is no charge.
The cell's inside the battery are not capable to retain the charge and immediately returns a signal to the control circuit that he is full! Control circuit then triggers an updates to the memory chip (located under control circuit).
Polling mechanism (triggers by the driver) in the device gets the battery status directly from the memory chip and it is the main reason basically getting a false percentage.
Anyway, just replace the battery and everything will be fine then.
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Click to collapse
master chef tomal is right , its the ability or capacity of the battery to hold proper amperage or power. you cannot simply measure the voltage across the terminals as it will not be definitive in ascertaining such holding capacity especially for battery that is about to deteriorate its cells (not yet fully dead).
Of course, if the reading is below than the usual rating, the only logical option is for you to replace it asap. but if its within the range, you have to do further testing.. and, if you want to experiment a little, try to put a load across its terminals like an LED with 1kohm resistor, and then measure the voltage. if it drops drastically, your battery is ready for retirement However, if the voltage rating remains, measure the time your battery will be fully discharged using that load. thereafter, let me know how many hours or day it lasted to help me compute the approximate amperage of your battery, regards... :
This is not a guarantee of battery life extension or performance. These are merely steps (in most cases) to possibly help prolong and restore battery longevity.
First lets understand something about battery charging. The most common mistake is to overcharge a battery. While one is inclined to charge when they see the low battery message, overcharging is detrimental to the battery. This is not good for the life expectancy of your cell phone battery, especially if you are expecting longer life from your battery. Over charging heats the battery, and drains its life expectancy.
Second, it would appear that after flashing (ROM’s, Kernel’s etc.) multiple times, your battery might not hold a charge all that well. Trying these steps may help improve battery life.
> Turn the phone on. Plug in the charger (not the USB to computer) and charge completely> Disconnect the charger and turn off the phone> Once completely shut down, plug the charger back into the phone. Let the phone completely charge, while phone is off. In some cases the phone may give a tone when charged. You can check its status by touching the volume up or down> Once again unplug the phone from the charger> These next steps are curcial. 1.Turn the phone on (give it time to boot completely) 2. Power it off again. 3. Connect to the charger once again. 4. Let charge to full one more time. Unplug the phone!
In most cases, this procedure need only be done once. Remember turn off bluetooth, intranet and other applications when not in use. These accessories pu a tremendous drain on a cell phones battery life. This is why they should be turned off, when not in use.
The old battery recalibration trick?
tomween1 said:
This is not a guarantee of battery life extension or performance. These are merely steps (in most cases) to possibly help prolong and restore battery longevity.
First lets understand something about battery charging. The most common mistake is to overcharge a battery. While one is inclined to charge when they see the low battery message, overcharging is detrimental to the battery. This is not good for the life expectancy of your cell phone battery, especially if you are expecting longer life from your battery. Over charging heats the battery, and drains its life expectancy.
Second, it would appear that after flashing (ROM’s, Kernel’s etc.) multiple times, your battery might not hold a charge all that well. Trying these steps may help improve battery life.
> Turn the phone on. Plug in the charger (not the USB to computer) and charge completely> Disconnect the charger and turn off the phone> Once completely shut down, plug the charger back into the phone. Let the phone completely charge, while phone is off. In some cases the phone may give a tone when charged. You can check its status by touching the volume up or down> Once again unplug the phone from the charger> These next steps are curcial. 1.Turn the phone on (give it time to boot completely) 2. Power it off again. 3. Connect to the charger once again. 4. Let charge to full one more time. Unplug the phone!
In most cases, this procedure need only be done once. Remember turn off bluetooth, intranet and other applications when not in use. These accessories pu a tremendous drain on a cell phones battery life. This is why they should be turned off, when not in use.
Click to expand...
Click to collapse
i feel like i do this every time i recharge my battery because every time i charge to 100% then turn it off and plug it in, it takes another 5 min to charge to 100 while its off. Literally, every time i bump charge it.
cumanzor said:
The old battery recalibration trick?
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Click to collapse
Mhmm, an explanation of the bump charge. Been written here before, but eh. Maybe someone lost theirs. I lost my txt file with the instructions a while back lol.
The way I see it these instructions only help to provide a more accurate battery count. Whether the battery is displaying correctly or not, juice in the battery is juice in the battery. Nothing more nothing less. This whole battery issue is ridiculous.
I think it'd be a good idea to remove the battery icon from the notification bar all together.
ninjuh said:
Whether the battery is displaying correctly or not, juice in the battery is juice in the battery. Nothing more nothing less. This whole battery issue is ridiculous.
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Click to collapse
No. Your phone has software in it to detect how much battery life is left for a variety of reasons; it turns more battery-intense functionality off at 5%, the camera for instance, and keeps enough battery power so that it can run its shutdown procedure, instead of just dying and losing whatever's in memory at the time.
You also don't want your phone thinking that 19% battery is 1% and turning off or telling you to charge it, as charging a battery that isn't fully discharged is a great way to lose long-term battery life. Additionally, how much would it suck if your phone software thought that 75% was 100% and stopped charging? You could then be leaving for the day with 3/4 of your battery, thinking it was full.
There are plenty of reasons to want this to be as accurate as possible. Unless you just don't give a crap if your phone is usable or not
delugeofspam said:
No. Your phone has software in it to detect how much battery life is left for a variety of reasons; it turns more battery-intense functionality off at 5%, the camera for instance, and keeps enough battery power so that it can run its shutdown procedure, instead of just dying and losing whatever's in memory at the time.
You also don't want your phone thinking that 19% battery is 1% and turning off or telling you to charge it, as charging a battery that isn't fully discharged is a great way to lose long-term battery life. Additionally, how much would it suck if your phone software thought that 75% was 100% and stopped charging? You could then be leaving for the day with 3/4 of your battery, thinking it was full.
There are plenty of reasons to want this to be as accurate as possible. Unless you just don't give a crap if your phone is usable or not
Click to expand...
Click to collapse
The "software" won't ever be off by more than 10%.
delugeofspam said:
...as charging a battery that isn't fully discharged is a great way to lose long-term battery life.
Click to expand...
Click to collapse
Not true with lithium ion batteries. They don't have charge memory.
ninjuh said:
The "software" won't ever be off by more than 10%.
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Click to collapse
[citation needed]
I was having all kinds of issues with my battery draining too fast. I unplugged at 7:30AM and by 10:30AM it would be at 60%. I tried the bump charge and all that, but then I realized "It's the apps, stupid!" I started running a task killer after I unplugged it, and now I'm making it to noontime and I'm only down to 80%.
TLR: Keep your apps in check, they are what eat your battery.
ninjuh said:
The "software" won't ever be off by more than 10%.
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Click to collapse
A few days ago my phone shut off after draining the battery - before it shut off the battery was less than 1%. i let it sit for ten minutes or so then turned it on. - it showed 16%.
Sent from my SAMSUNG-SGH-I897 using XDA App
i do this ALL the time!
If you are running a custom rom it is also good to delete the battery charge stats when booting back up after step 4. If you have CWM just boot into recovery, go to advanced, then clear battery stats.
There is a way to clear it if you don't have CWM, but I don't remember what it is and I think most people have CWM anyways.
I check my apps frequently. One day my weather widget was going nuts and was using GPS non stop. I pulled my phone out at lunch and the battery was in the yellow. Granted I haven't seen that happen again it has made me reconsider even using apps/ widgets with GPS
widgets kill battery. I had several pages of widgets and I had to wipe by phone, remarkable how much "better" the battery was after that. Weather widgets look great but it costs to run them.
majortool said:
widgets kill battery. I had several pages of widgets and I had to wipe by phone, remarkable how much "better" the battery was after that. Weather widgets look great but it costs to run them.
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Click to collapse
I've a feeling it has less to do with the actual widget and more to do with their constant updating when there is a poor or nonexistant connection.
Sent from my custom ROM'd Captivate
BigJayDogg3 said:
I've a feeling it has less to do with the actual widget and more to do with their constant updating when there is a poor or nonexistant connection.
Sent from my custom ROM'd Captivate
Click to expand...
Click to collapse
Don't download the anaimation sub-app. update on the hour (or 2) instead of 15 -30 min.
I would love some advice as a noob here. I've only had my Cappy for a little over 2 weeks. I've done the battery calibrate trick, but still don't see very good battery life. I unplugged from the charger at 100% at 10pm last night and left the phone on all night. Wifi and GPS were turned off. Beautiful Widgets is set to update weather every hour. The phone received 7 sms messages during the night. When the alarm went off at 6:30am I was at 70%. It's 10am now, so it's been off the charger for 12 hours. Here is what I show:
Voice Calls 34%
Cell Standby 23%
Phone Idle 16%
Display 15%
Android System 4%
Beautiful Widgets 3%
Android OS 3%
Android Core Apps 2%
antivirus 2%
Battery currently shows 51% left
I'm running stock Eclair JH7, build 1101
Would anyone suggest Advanced Task Killer or Juice Defender?
There are some good tips for prolonging and caring for your Battery here: (Can't post links, google search: site:arstechnica.com battery life ask ars)
However, cell phone batteries rarely run over $30 (I have seen capivate batteries as low as $13), if you just always fully charge it you will still see a good 8-12 months out of it, and then just buy a new one. $30 a year is worth it to me to just let the thing fully charge so that I can use it for longer.
kb0npw said:
Would anyone suggest Advanced Task Killer or Juice Defender?
Click to expand...
Click to collapse
PLEASE DO NOT INSTALL ANY OF THESE BEFORE READING
http://www.xda-developers.com/android/the-view-on-task-managers-for-android/
If you fully charge and run the battery, done several times, the battery will eventually run better. Surprisingly, there is a "break in" period for the battery.
I appreciate the advice on the task killers and such. I don't use one, and after reading that stuff, I won't. I pulled my phone off the charger yesterday at about 1pm. By the time I played some games, did some web browsing, made some calls and did some texting, it was still at 70% when I went to bed at around 10pm. This morning at 7am, I was shocked to find that it was still at 67%! I don't have a clue what was different. It typically hogs up 25-30% overnight, but this time it only did 3%. I wish I knew what was different. This is so weird!
Hi there, I own a Nexus 5 recently. The phone arrives soon and by everyone is know that battery comes with some charge. Should I leave discharge the battery complete and then charge back or how is this procedure in order to not kill the battery and gain a good calibration?
I have an extra question, is there any problem for battery if I leave the USB cable connected all the time even if battery is full?
Sent from my Galaxy Nexus using Tapatalk
Just charge it, don't fully discharge it and use it normally. You don't need to worry about calibrating
jd1639 said:
Just charge it, don't fully discharge it and use it normally. You don't need to worry about calibrating
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Click to collapse
You can use as normal..I normally drain it.
And in general, when dealing with lithium ion batteries, leaving them plugged in excessively when fully charged kills the battery in the long run
teh roxxorz said:
You can use as normal..I normally drain it.
And in general, when dealing with lithium ion batteries, leaving them plugged in excessively when fully charged kills the battery in the long run
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Click to collapse
Bad form on both counts. Li-ON batteries shouldn't be deep discharged. They have built in circuitry to prevent ACTUAL 0% (they shut down before getting to real 0%) but still not good to run it down to 5% all the time.
Unless you have some crappy charger & phone, the IC in the phone will instruct the charger to kill power when it's full so leaving it plugged in all the time wont make a difference - this is for a phone.
This is not the same and not for the same reasons in laptops. Reason it's not so good is if your laptop has crappy cooling system or like some people need it on "Performance" all the time because they don't want their CPUs "slowing them down". As a result of the heat from the system now going into idle state, the battery lifespan degrades. This is where your "plugged in all the time" stance comes from but it's not valid with all applications.
shotta35 said:
Bad form on both counts. Li-ON batteries shouldn't be deep discharged. They have built in circuitry to prevent ACTUAL 0% (they shut down before getting to real 0%) but still not good to run it down to 5% all the time.
Unless you have some crappy charger & phone, the IC in the phone will instruct the charger to kill power when it's full so leaving it plugged in all the time wont make a difference - this is for a phone.
This is not the same and not for the same reasons in laptops. Reason it's not so good is if your laptop has crappy cooling system or like some people need it on "Performance" all the time because they don't want their CPUs "slowing them down". As a result of the heat from the system now going into idle state, the battery lifespan degrades. This is where your "plugged in all the time" stance comes from but it's not valid with all applications.
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Click to collapse
Well very true, and I have an electronics background, so I know what works and what's alright. Discharging it is fine.
Thanks to all of yours I'll learn something new and now I know how to handle battery lifetime for best
Sent from my Galaxy Nexus using Tapatalk
Actually Shotta35 is 100% correct with regards to deep discharges and li-ion batteries. There is a write up I did in 2012 about battery care from a hardware prospective in my sig, and it has nothing to do with battery memory. teh roxxorz is also right about leaving batteries plugged in for extended periods of time. More energy = more heat = shorter lifesan.