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There are lots of myths regarding lithium batteries.. some say you are not supposed to overcharge it (charge it only when it's running out)
Some say it doesn't matter since lithium can be recharged as much as you want and it won't deteroriate the battery's life.
Which one? Can I recharge my Touch Pro 2 every night before I go to bed and leave it until morning? or should I do it when it's running out to preserve the battery's life?
You should keep the device on A/C power as much as possible. So, it's fine to charge daily overnight. Every once in a while, you should let the battery run all the way out before recharging. What this will do is keep your battery meter reading accurate. If you don't do this, eventually, your device will "think" it has more juice than it actually does.
Check this:
http://www.batteryuniversity.com/parttwo-34.htm
Ah thanks
So to cut the story short, recharge it as much as you can and prevent the battery ever from being run out
Nahhh, not fully true. Somewhere else on the site of batteryuniversity it sais that completely discharging the battery will reset it's memmory. This is usefull after a lot of charges and discharges (in the beginning, I think they already did this (you may hope).
(the memmory helps the battery know where his power is storaged and how much power the battery has left. But doing this frequent speeds up the battery 's lenght of life
In my experience
Enjoy your device and charge battery when needed/desired
Use it normal
Batteries have a duration of 3-4 years aprox, no matter if you charge it every night or leave it till it´s empty...
When battery fails you buy another one and so on
Just my opinion,
My experience with the battery life on my touch pro 2 is that I will keep the phone usually docked in my cradle on my desk when working so it's always on charge. When I use my battery I wait till it's about 40-30% drained and will stick it on the cradle again.
When I'm in my bed ready to sleep, I use the normal charger and leave it on charge over night.
Still experimenting though.
ilabstudios said:
My experience with the battery life on my touch pro 2 is that I will keep the phone usually docked in my cradle on my desk when working so it's always on charge. When I use my battery I wait till it's about 40-30% drained and will stick it on the cradle again.
When I'm in my bed ready to sleep, I use the normal charger and leave it on charge over night.
Still experimenting though.
Click to expand...
Click to collapse
Do you have a cradle for your Rhodium ? Where did you get it ?
Check my battery thread, it will tell you pretty much everything about li-ion batteries and taking care of them
http://forum.xda-developers.com/showthread.php?t=519673
quarintus said:
Nahhh, not fully true. Somewhere else on the site of batteryuniversity it sais that completely discharging the battery will reset it's memmory. This is usefull after a lot of charges and discharges (in the beginning, I think they already did this (you may hope).
(the memmory helps the battery know where his power is storaged and how much power the battery has left. But doing this frequent speeds up the battery 's lenght of life
Click to expand...
Click to collapse
Hmm, first of all Li-ion batteries have NO MEMORY unlike NiCd batteries. You probably refer to resetting the reading gauge - which is related to device's capability of getting accurate reading rather than battery itself. It is recommended to let the device die once a month and give it a full charge to "recalibrate" phone's battery meter (not the battery).
But you should avoid hitting 100% battery mark as well as going bellow 30% as much as possible.
from my experience as a phone shop owner and owner of many many phones i always advise my customers and friends as follows:
1st charge 10-12 hrs. allow battery to fully discharge
2nd charge at least 8 hrs
after 2nd charge you can charge and use as you want. the initial 2 charges kick start everything and starts your battery cycle on good stead
never had any complaints!
Another thing, is it bad to use your device whilst plugged in?
danmb said:
Another thing, is it bad to use your device whilst plugged in?
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Click to collapse
its ok to do that as it will run off ac power while plugged in
danmb said:
Another thing, is it bad to use your device whilst plugged in?
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Click to collapse
The battery should be as cold as possible when charged. So if you are using the phone the battery power drains and is charged at the same time. Therefore it gets warmer than without.
Best for the battery is to be charged when the device is switched off completely.
I wouldn't consider that much of a problem, because you have bought the device to use it and not to live in fear that you treat the battery right
when plugged into USB and playing a game on my TP2 I got the message the device is using too much power, and it drained the battery even though recharging via USB. No problems when using AC adapter though.
Used my XDA Orbit 2 for 2 years now, and mostly charged at free will. Battery is still fine, so no special charging rules for me...
I noticed though, that charging over USB takes quite some time while charging over AC cable is done within an hour or so. When looking at my AC it has 5 Watts of output power, while the USB only has 2.5. That would explain your issue with the battery running out even when having the USB cable plugged in.
StealthNet said:
Do you have a cradle for your Rhodium ? Where did you get it ?
Click to expand...
Click to collapse
http://www.htcaccessorystore.com/uk/p_htc_item.aspx?i=179339
Under mango or one of the firmware updates which had been updated recently , u will see yr battery saver is fluctuating , at one time saying u have a 1 day, while another time it says u only 2 hours on a reasonably fuller charge.
there is a problem with HTC original batteries, rather i will say a safety regulation after recent incidents with battery safety
yr htc only charges up to 85% level even though the phone indicator shows 100%
when u unplug it from the charger, it immediately drains and stays at 80%.
THis is likely why the HTC phones have a shorter battery life, whether its android or windowsphone 7
this is not a defective battery, its made intentionally by HTC for 2 reasons 1) safety , 2)battery longevity ,the safety mechanism built in stops charging it to 100%, thus overcharging, overcharging means the battery is out thru stress which may pose a hazard. if a battery is fully charged to true 100 % , it poses a hazard if one of the pins in the phone connectors break. apparently this pin tells the charger or the phone not to charge anymore once reaching 100%. there is a possibility that if this pin breaks, the phone will overcharge and pose a safety hazard. So this is why HTC batteries dont charge to true 100% and this particular pin is tweaked to full charge to only 80%
wheareas, mugen batteries ect do not have this safety regulation or charging limit although they are safe to use, so they seem to last 20% more than stock HTC battery because they fully charge to 100%.
Mugen or other reputed aftermarket batteries are more likely to wear out sooner than stock batteries unless depending on the quality of the battery..
in order to get yr HTC battery to full charge it u need to bump charge it.bump charging is a technique to fully charged the battery closer to its real capacity
to bump charge
1) fully charge the battery from 20% to 100% , as indicated by the phone OS
2) turn off the charger, turn on again, u will notice the phone charges again even though its 100% full for 1/2 a minute. wait for it to fully charge
3) repeat the above step 2) for 10 times
4)use a timer plug to simplify the process. Set the timer plug to on/off every minute for 10 times. u need to get a digital timer for this purpose with mutiple timer settings
Magpir said:
yr htc only charges up to 85% level even though the phone indicator shows 100%
when u unplug it from the charger, it immediately drains and stays at 80%.
THis is likely why the HTC phones have a shorter battery life, whether its android or windowsphone 7
Click to expand...
Click to collapse
Interesting. I noticed this with my HTC Mozart; battery indiactor drops one bar (to 80-85%) as soon as I take it off charge. Always assumed it was a WP7 thing - like it was drawing a lot of current.
Where did you get this info from? Looks like I'll be ordering a new (non-HTC) battery asap!
If it's true i won't buy a plug timer but a new battery, not from HTC...at least i hope it's true caus my battery capacity sucks and that gives me hopes, enjoying my hd7 more than a half day without plugging it (when it's possible)...so nuff thanks for the tip.
Sent from my HD7 T9292 using XDA Windows Phone 7 App
Funny, I have always done this with every device (maybe not the x 10 repeat!). never knoew that was the reason though thanks!!
not only HTC, there are couple of other devices like samsung galaxy ect
now u know why they claim mugen and other aftermarket batteries last longer...
mugen 1500 mah battery with the same size as the stock 1230 mah batt>
thats bull..because a 1500 mah battery looks much bigger ... the samsung omnia 7 has a 1500 mah battery and its 30% larger than than the HD7 battery....
Aphasaic2002 said:
Interesting. I noticed this with my HTC Mozart; battery indiactor drops one bar (to 80-85%) as soon as I take it off charge. Always assumed it was a WP7 thing - like it was drawing a lot of current.
Where did you get this info from? Looks like I'll be ordering a new (non-HTC) battery asap!
Click to expand...
Click to collapse
thats because the battery stops charging once it reaches 85%
u may have heard of the HTC bump charging technique. thats what this si all about , but u need to do it everyday, so get a timer plug and leave it to do its job overnight everyday
the best is to use a digital programmable timer plug .
Ok, had a google and looks like your post is only partially true:
http://phandroid.com/2010/12/25/you...is-lying-to-you-and-its-not-such-a-bad-thing/
Appears it's an issue with all smartphones, not just HTC! Also bump-charging will dramatically reduce battery life.
As someone in the comments says; why can't the phone just stop charging and switch to running wall power once battery gets to 100%, same as laptops? I assume this is what Apple do, as the iPhone doesn't suffer from the same issue.
Interesting because I have no problems with my battery doing that running Mango beta 7712 on my HTC 7 Pro.
The moment I take my battery off once it turns green, it stays at 100% for hours if there's absolutely no activity on it.
I think it's how far you guys are draining your batteries. Ever since I've gotten my phone, only twice did I push the battery lower than 15% charge; once on accident and another to recalibrate it. After that, I never pushed it lower than 15% and made sure to only recharge it after at least a good 20% of usage (days i feared i wouldn't be near a charger and needed full charge).
Granted, I'll add that it maybe be because I swap the battery out every other night with a spare, and if I do so I make sure there's between 50-58% charge left.
No bump charging either.
ScottSUmmers said:
Interesting because I have no problems with my battery doing that running Mango beta 7712 on my HTC 7 Pro.
The moment I take my battery off once it turns green, it stays at 100% for hours if there's absolutely no activity on it.
I think it's how far you guys are draining your batteries. Ever since I've gotten my phone, only twice did I push the battery lower than 15% charge; once on accident and another to recalibrate it. After that, I never pushed it lower than 15% and made sure to only recharge it after at least a good 20% of usage (days i feared i wouldn't be near a charger and needed full charge).
Granted, I'll add that it maybe be because I swap the battery out every other night with a spare, and if I do so I make sure there's between 50-58% charge left.
No bump charging either.
Click to expand...
Click to collapse
yes its better to maintain 20% charge .
If u noticed the iPhone batteries wear out faster.
About year or so.
Just to confirm I have used the timer plug technique twice the last 2 days .
This is what I have
30% charge
8 hours since last charge
Moderate usage.
Somehow those who claim to use momax or mugen batteries claim to have the same results above .
the charge-controller is in the phone not the battery.
schranz01 said:
the charge-controller is in the phone not the battery.
Click to expand...
Click to collapse
apparently it still the battery...
up for awareness.....
My HD7 doesn't do this. Tried several times even over a 5 minute span keeping the battery indicator in view. It never dropped to 80%.
---------- Post added at 08:57 AM ---------- Previous post was at 08:54 AM ----------
Magpir said:
yes its better to maintain 20% charge .
Click to expand...
Click to collapse
You should not let Li-ION batteries fully discharge, ever. It's good to keep it on a charger whenever you can, than keep it off a charger and let it fully discharge. That wears the battery out.
Also, there's no risk in overcharging the battery because almost all decent phones will stop charging when the battery is full. They know when to stop charging, just like they know when to alert you that the battery is fully-charged (via a notification and/or changing the LED Notification light color).
You actually can overcharge it by exposing a fully charged battery to higher temperatures - putting the phone in direct sunlight or setting it in a car holder in the way of hot air from the heater deflector while using Satnav, for example. In order to avoid these conditions, controllers do prevent batteries from 100% charge. That being said, I don't think there's a standard for marking battery capacity, and an honest manufacturer should put real effective battery assembly capacity accounting for those limitations, not the sum of capacities of included cells. Don't think they do it really.
vangrieg said:
You actually can overcharge it by exposing a fully charged battery to higher temperatures - putting the phone in direct sunlight or setting it in a car holder in the way of hot air from the heater deflector while using Satnav, for example. In order to avoid these conditions, controllers do prevent batteries from 100% charge. That being said, I don't think there's a standard for marking battery capacity, and an honest manufacturer should put real effective battery assembly capacity accounting for those limitations, not the sum of capacities of included cells. Don't think they do it really.
Click to expand...
Click to collapse
Yea, its like computer hard drives and flash cards....Formated they never will be the size your quoted or paid for.
I wish there was standards for this and it's only sold on the actuall usable space or time.
N8ter said:
Also, there's no risk in overcharging the battery because almost all decent phones will stop charging when the battery is full. They know when to stop charging, just like they know when to alert you that the battery is fully-charged (via a notification and/or changing the LED Notification light color).
Click to expand...
Click to collapse
It's actually still not good to leave li-ion batteries plugged in when they are fully charged and stopped charging. They will suffer from capacity loss that way as well. Not to mention any heat coming off the device.
Update: i did not bump charge today..
and the old symptom returned again.. draining fast
so what is the best thing to do?
is there any way of charging,dis charging ect to get the best battery life?
or should i just charg it to 100% and use it right away?
i did a charging squence with my nexus s. but duno about the Gn.
for me is to turn on the device and start working until the battery drops to 0-1%.
only then im charging it X2 then needed to go to 100%, you can make it Double if you want.
Well, this is going to be one of those threads where everyone has their own little way to care for a battery and others say their way is better, etc, etc the arguments breaking out which will result in people posting www.batteryuniversity.com in an effort to win said arguments.
Here's mine. On a brand new phone, I put the battery in, boot up, connect the charger, run it to 100%, disconnect charge, run battery all the way down, connect the charge, run to 100% and go about my life charging when I need to.
My two cents. Have no idea if it does any good, but my SGSII is going on 1 day 14 hrs on a single charge, so it must work somehow...
ericshmerick said:
Well, this is going to be one of those threads where everyone has their own little way to care for a battery and others say their way is better, etc, etc the arguments breaking out which will result in people posting www.batteryuniversity.com in an effort to win said arguments.
Click to expand...
Click to collapse
100% Agree. There will be a lot of different opinions.
ericshmerick said:
Here's mine. On a brand new phone, I put the battery in, boot up, connect the charger, run it to 100%, disconnect charge, run battery all the way down, connect the charge, run to 100% and go about my life charging when I need to.
My two cents. Have no idea if it does any good, but my SGSII is going on 1 day 14 hrs on a single charge, so it must work somehow...
Click to expand...
Click to collapse
My way,
Turn on phone, charge it to 100%, leave it plugged for an extra 20 min, and start using it normally.
The only time I discharge a battery is after a couple of months. Because we never charge it to 100% and they start creating memory and charging less and less every time. The purpose of discharging it completely is to erase its memory. That's why when it is new, I see no point on discharging it completely. Batteries suffer every time they are completely discharged and if they are left 100% for a long period of time, thats why new batteries always come charged about 50%, to extend battery life since they may be stored for a long period of time. (ref. aviation school)
Just my 2 cents.
sstang2006 said:
The only time I discharge a battery is after a couple of months. Because we never charge it to 100% and they start creating memory and charging less and less every time. The purpose of discharging it completely is to erase its memory. That's why when it is new, I see no point on discharging it completely. (ref. aviation school)
Click to expand...
Click to collapse
That hasn't been true since NiCd's in the 1980s.
Modern Lithium-Ion and Lithium-Polymer batteries have no "memory" and are actively damaged if allowed to discharge fully.
HooloovooUK said:
That hasn't been true since NiCd's in the 1980s.
Modern Lithium-Ion and Lithium-Polymer batteries have no "memory" and are actively damaged if allowed to discharge fully.
Click to expand...
Click to collapse
OK, I may be wrong I'm no expert.
Why do people keep discharging them to 0% if they have no memory? (I'm not been sarcastic)
sstang2006 said:
Why do people keep discharging them to 0% if they have no memory? (I'm not been sarcastic)
Click to expand...
Click to collapse
Generally because they don't know any better and they don't realise battery technology has moved on.
Because batteries "back in the days" were quite sensitive to memory. That's why we were all raised by the complete-discharge-mantra, which sticks with you forever. The next generation won't have this problem and will feel free to charge their phones when they want to. ;-)
sstang2006 said:
OK, I may be wrong I'm no expert.
Why do people keep discharging them to 0% if they have no memory? (I'm not been sarcastic)
Click to expand...
Click to collapse
Becouse android in itself keeps a battery log, it is from this log your device calculates the amount of battery you have left. To keep these values true (calibrated) you should do 2-3 cycles where you on purchase, discharge fully until device auto shut down, start it WITHOUT charge a couple of times and let it die to set the min value, charge up to 100%, use your device again till auto shut down... you dont have to worry about damaging your battery in this case since your device it programmed to shut down with good marginal of battery depletion. What you SHOULD NOT do is leave an empty battery uncharged for a long period of time.
Sent from my X10i using xda premium
Lithium batteries will be damaged if they are stored fully charged or fully discharged for extended periods of time. Thats why the battery is about half charged when its new. They have no memory effect, they just loose capacity.
Sent from my Nexus S using Tapatalk
Tjotte said:
Becouse android in itself keeps a battery log, it is from this log your device calculates the amount of battery you have left. To keep these values true (calibrated) you should do 2-3 cycles where you on purchase, discharge fully until device auto shut down, start it WITHOUT charge a couple of times and let it die to set the min value, charge up to 100%, use your device again till auto shut down... you dont have to worry about damaging your battery in this case since your device it programmed to shut down with good marginal of battery depletion. What you SHOULD NOT do is leave an empty battery uncharged for a long period of time.
Click to expand...
Click to collapse
Good point. While it's important not to fully discharge the battery too often, there is also the issue of calibrating the battery meter.
ericshmerick said:
Well, this is going to be one of those threads where everyone has their own little way to care for a battery and others say their way is better, etc, etc the arguments breaking out which will result in people posting www.batteryuniversity.com in an effort to win said arguments.
Here's mine. On a brand new phone, I put the battery in, boot up, connect the charger, run it to 100%, disconnect charge, run battery all the way down, connect the charge, run to 100% and go about my life charging when I need to.
My two cents. Have no idea if it does any good, but my SGSII is going on 1 day 14 hrs on a single charge, so it must work somehow...
Click to expand...
Click to collapse
That's exactly what I do, had 14 hours of moderate use today and still had 45% left. More than happy with that. It seems to be getting better each day at the moment.
Crin said:
That's exactly what I do, had 14 hours of moderate use today and still had 45% left. More than happy with that. It seems to be getting better each day at the moment.
Click to expand...
Click to collapse
78% after 14 hours here, but that's light use.
sstang2006 said:
OK, I may be wrong I'm no expert.
Why do people keep discharging them to 0% if they have no memory? (I'm not been sarcastic)
Click to expand...
Click to collapse
The whole "discharging the battery fully" thing doesn't really apply here - because nobody will ever fully discharge it. The Nexus uses a Lithium Ion cell - it's a single cell, with a nominal voltage of 3.6V. When fully charged, it peaks at 4.2V (at which point, the charging circuitry cuts off to avoid overcharging). However, when we "fully discharge" our phones, the cell only goes as low as 3.5V - and then the phone shuts off.
In reality, lithium cells can discharge to around 3.0V before any damage occurs. However, this would yield very little extra battery life. Stopping at 3.5V provides a wide safety margin (lithium cells are potentially dangerous if overcharged/discharged), whilst extending cell life.
In a nutshell - don't worry about running your phone down to 0% (unless you're putting it in storage, in which case leave it at about 60%). In fact, it's a good thing with a new phone, as cycling (charging and discharging a cell) helps to "wake" the cell up and reach it's max capacity more quickly.
Sent from my Galaxy Nexus using XDA App
i see some good ideas about charging and discharging.
but it is indeed a fact that 100% and 0%(real) isnt good for our new race of battery's.
but a few posts here already tell how and what.
and its not gonna be a thread of arguments and stuff,if we all keep it in our heads that we just want to share our tip's of how you think its the best way(and have some experience with it)
just to share some info. and not compete the info against each other.
i well know there are different ways. but its always nice to read what experience people have with it to make a choice for my own and any other wanting to know this.
and i posted here in the GN section,instead of the Android section because each phone handles battery different,and this narrows the options down to a single device :3
Just keep in mind it's not just about the battery itself it's about the software registering how much actual power the battery has at a certain time, so if the battery has in actuality 100% charge in it, and the software reads 80 then your phone will die out sooner. So charging and discharging is good because it calibrates the hardware with the software. Just remember to switch off the device then charge it so the software doesn't auto discharge when it thinks the battery reached 100%.
K i just skipped thru the posts, gonna throw in my input real quick.
Basically just run down the battery. Once it turns off, hold the power button to make sure all the juice is gone. Then charge it up to 100% and leave it there for a good hour. Now (root required) download https://market.android.com/details?...yLDEsImNvbS5uZW1hLmJhdHRlcnljYWxpYnJhdGlvbiJd and follow the instructions .. its not exactly necessary but a nice thing "just in case" .
thats my plan anyways.
Nutsonfire said:
Lithium batteries will be damaged if they are stored fully charged or fully discharged for extended periods of time. Thats why the battery is about half charged when its new. They have no memory effect, they just loose capacity.
Sent from my Nexus S using Tapatalk
Click to expand...
Click to collapse
Where does the loosed capacity go? Can it be caught?
And what do you think about charging with the phone being switched on? Is it better to have it switched off?
Sent from my Galaxy Nexus using xda premium
juniorbattle said:
And what do you think about charging with the phone being switched on? Is it better to have it switched off?
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Won't make a difference.. Phones are designed to be left on anyway.
Hello,
So I am going to get HTC One X next week. Though, I have one question. Should I charge it first time for a long period or can I turn it on in shop, just to check if everything is okay and etc. I just want to have the maximum battery life, possible. Thanks for your answers
And hey, maybe you have any other suggestions?
I would get it home and stick it on charge until at least the light turns great. A few people are suggesting leave it for at least another 20-30 mins after this too if you can. I definitely wouldn't turn it on in the store; and HTC also recommend to fully charge before use.
DazNoonan said:
I would get it home and stick it on charge until at least the light turns great. A few people are suggesting leave it for at least another 20-30 mins after this too if you can. I definitely wouldn't turn it on in the store; and HTC also recommend to fully charge before use.
Click to expand...
Click to collapse
Oh, okay Thanks. Well, I am just so scared... I don't want to get a phone with bunch of bugs
You're fine to turn it on and give it a quick test. All Lithium Ion/Polymer batteries have a partial charge for shipping as leaving it completely flat for long periods of time will damage it. Don't run the battery down though.
You should still charge it fully before using it properly however. Once the phone is fully charged then you can unplug it and use it. You don't need to leave it "charging" for 12+ hours even if the phone thinks it is fully charged.
Tiersten said:
You're fine to turn it on and give it a quick test. All Lithium Ion/Polymer batteries have a partial charge for shipping as leaving it completely flat for long periods of time will damage it. Don't run the battery down though.
You should still charge it fully before using it properly however. Once the phone is fully charged then you can unplug it and use it. You don't need to leave it "charging" for 12+ hours even if the phone thinks it is fully charged.
Click to expand...
Click to collapse
Okay, I will plug it in for the first time. But what about second, third times? Should I discharge it completely?
Niiceg said:
Okay, I will plug it in for the first time. But what about second, third times? Should I discharge it completely?
Click to expand...
Click to collapse
Its normally better for the battery to run down to a low level before re-charging if you keep topping the battery up when it gets to 50 - 60 you could end up damaging the battery.
Appsdroid said:
Its normally better for the battery to run down to a low level before re-charging if you keep topping the battery up when it gets to 50 - 60 you could end up damaging the battery.
Click to expand...
Click to collapse
That is with NiCad and NiMH batteries. Lithium Ion batteries don't have the memory effect and actually prefer partial discharge cycles.
If anything odd happens then you can recalibrate the battery monitoring data by discharging it fully then charging it. In general however, you shouldn't do this every cycle.
My second phone that arrived took around 3 hours 15 mins for its charge light to turn green; I unplugged it after 4 hours and I was actually happy with the battery life on that one. My third one arrived earlier and the green light came on after 1 hour and 25 mins.
Guess they started with different battery levels? I will leave it on charge for another hour or so as I'm going in a meeting anyway; therefore when I turn it on its initial charge will have been around 3 hours long.
I believe you can't over charge the battery anyway, so once the green light it on there is a chance its probably not taking in anymore power. If thats the case leaving it plugged in once the light has changed is just irrelevant?
DazNoonan said:
I believe you can't over charge the battery anyway, so once the green light it on there is a chance its probably not taking in anymore power. If thats the case leaving it plugged in once the light has changed is just irrelevant?
Click to expand...
Click to collapse
Li ion batteries are protected from overcharging, as overcharge could actually cause it to overheat and catch fire or explode. Not sure if the protection is in the OS, hardware, or battery. But basically charging will stop when the battery is 100% and saturated, then when the battery dips below 100%, it will top it off again. Not sure about the One X (still waiting for the AT&T variant), but on other HTC phones, you will sometimes actually see the battery meter drop down from full to 99% when its on the charger, then read full again.
So leaving it on the charger doesn't hurt things much (although technically partial charges are better for the battery long term). Leaving the battery charging for longer ensures the "saturation" charge is applied, which may not happen if you quick charge to full, then disconnect.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
---------- Post added at 01:04 PM ---------- Previous post was at 12:52 PM ----------
Tiersten said:
If anything odd happens then you can recalibrate the battery monitoring data by discharging it fully then charging it.
Click to expand...
Click to collapse
You shouldn't purposely discharge Li ion batteries until the phone shuts off. In theory, protections in the OS and the battery's safety circuit are supposed to prevent over-discharge. But its not fail-safe, and I've seen reports of plenty of Android phones where the battery fails to take a charge after being discharged to shutdown. If this happens to you, the only way to bring the battery back to life is with a special battery meter with boost function (which most people do not have access to) or buy a new battery (which is of course a problem on the One X, due to the non-removable battery).
Its rare, but it does happen, and there is no real benefit to running the battery until the phones shuts down. The battery meter is not remotely accurate enough to justify purposely discharging below 10 or even 15%, just for sake of calibration. Charge to full, leave it a while (30 min), then use until 15% charge or so. Repeat a couple times to fully calibrate the battery meter.
To answer the original question, powering the phone on (when you first get it) for a short time is ok. Just go through the battery meter calibration as I described as soon as possible thereafter, and it should be fine.
redpoint73 said:
Li ion batteries are protected from overcharging, as overcharge could actually cause it to overheat and catch fire or explode. Not sure if the protection is in the OS, hardware, or battery. But basically charging will stop when the battery is 100% and saturated, then when the battery dips below 100%, it will top it off again. Not sure about the One X (still waiting for the AT&T variant), but on other HTC phones, you will sometimes actually see the battery meter drop down from full to 99% when its on the charger, then read full again.
So leaving it on the charger doesn't hurt things much (although technically partial charges are better for the battery long term). Leaving the battery charging for longer ensures the "saturation" charge is applied, which may not happen if you quick charge to full, then disconnect.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
---------- Post added at 01:04 PM ---------- Previous post was at 12:52 PM ----------
You shouldn't purposely discharge Li ion batteries until the phone shuts off. In theory, protections in the OS and the battery's safety circuit are supposed to prevent over-discharge. But its not fail-safe, and I've seen reports of plenty of Android phones where the battery fails to take a charge after being discharged to shutdown. If this happens to you, the only way to bring the battery back to life is with a special battery meter with boost function (which most people do not have access to) or buy a new battery.
Its rare, but it does happen, and there is no real benefit to running the battery until the phones shuts down. The battery meter is not remotely accurate enough to justify purposely discharging below 10 or even 15%, just for sake of calibration. Charge to full, leave it a while (30 min), then use until 15% charge or so. Repeat a couple times to fully calibrate the battery meter.
To answer the original question, powering the phone on (when you first get it) for a short time is ok. Just go through the battery meter calibration as I described as soon as possible thereafter, and it should be fine.
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Brilliant post redpoint73; appreciate you taking the time. Just got out of my meeting so my device has been on charge for around an extra hour since seeing the green light so I will be taking it off charge now to set it up etc... Total first time charge time will have been 2 hours 40 mins.
It's likely it will be down to 15%-20% before I put it on charge again tonight as will be syncing all the apps and data back on to the device as well as giving it a good bit of usage to check things out. Will no doubt then be on charge for around 7 hours through the night whilst turned off, and I will do this for the first 3/4 days (same as previous one). My last battery was good so hoping for the same again.
redpoint73 said:
You shouldn't purposely discharge Li ion batteries until the phone shuts off. In theory, protections in the OS and the battery's safety circuit are supposed to prevent over-discharge. But its not fail-safe, and I've seen reports of plenty of Android phones where the battery fails to take a charge after being discharged to shutdown. If this happens to you, the only way to bring the battery back to life is with a special battery meter with boost function (which most people do not have access to) or buy a new battery (which is of course a problem on the One X, due to the non-removable battery).
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It is pretty poor design if your phone does kill itself if you hit 0% though as that isn't too unusual of an event for a phone. I've never seen any phone which did that but I agree it could happen.
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.
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