Related
Hey,
So I used to have the Titan. Often I would take out the battery and just use the phone without it in *edited* while plugging into the wall, in order to save the battery for later....or to avoid the battery from over heating and shutting down services on the phone.
Pretty simple:
Is there anyway to program the phone to stay on with the battery out *edited* with the wall charger in? Seems like if on the Titan you could do it, here you should be able to as well?
Edited for xander
just because you were high and seeing stars doesnt mean you can operate a phone with no power unless you have a wall charger. although you failed to mention that so this thread should be kaput.
the above reply was almost as bad as the original thread post.
giggly
I definitely should have read over what I was about to post.
anyhow, any solutions?
Mine works just fine without the battery in if I plug it in......... no mod needed??
You do realize that once the battery is completely charged it is no longer charging. Just about EVERYTHING Li-Ion is "smart charged."
The batteries would burst into flames if continuously charged.
I have had a VERY low battery (5% or lower) and plugged into a 500ma power supply (typical USB charger, not HTC factory) and while really taxing the phone (streaming skyfire flash videos back when Hulu worked) and it would only charge the phone 10 percent in about 20 minutes. Sometimes it seemed it wasn't charging at all. The phone is really sucking some current, cellular radio downloading large amounts of data, processor is blazing running skyfire.
Now with the HTC factory charger being a 1000ma (1A) power supply it could obviously supply enough power for the TP at "full demand."
Goes back to the original question.
WHY?
It isn't serving any benefit. Li-Ion does not have a charge "memory" like old NiCd batteries or NiMh. Yes there are a certain amount of charges the battery can take but again, the phone is a smart charger. Once the battery is at full capacity (you want a charged battery right?) it no longer is charging. There is no battery degredation occuring.
to simply answer the op and not beat him to death with words, there is an easy answer to the question... no, there is no software to be able to do what you want for 2 reasons. one, there is extreamly low demand for the application. people here don't generally spend a week or 2 making a program to make one person happy. they'll do it for a hundred people though. two, i could be wrong about this reason but i don't believe that the hardware will allow it. it's designed to have the electricity run to the battery first, then the phone draws the energy from the battery for use. to my knowledge the phone doesn't have a way to be able to use the energy from the charging port directly. sorry champ, the only way that you are going to get this done is with an electrical engineering degree, soddering iron, and the circuit blueprints themselves.
to simply correct the poster aboive and still think about beating him to death...
yes it is possible, no you do not need extra software... and yes the hardware supports it... Im sorry I personally don't know how to do [email protected]: But if you post over @ PPCGeeks im sure they'll figure it out for ya.
I know it's possible for two reasons... If your phone is plugged Via USB in the bootloader, you may take the battery out. Also, on a ROM that I had installed previously my phone froze for about 2 mins and the battery was blazing so i took it out... To my surprise it was still on (i was tethering) and working perfectly! ZOMG...I love people who answer unknowingly...
For the person who said the smart remark about the lithium battery, im sure the OP knew that, but requires the phone to work with the battery off after he was done charging it... This would let him tether or do what it is that he needs endlessly without worrying about the battery overheating...
In other words, if you're not here to help, then sthu... Dont ***** about his question, dont insult him... Either help, or move on...
Tilde88 said:
For the person who said the smart remark about the lithium battery, im sure the OP knew that, but requires the phone to work with the battery off after he was done charging it... This would let him tether or do what it is that he needs endlessly without worrying about the battery overheating...
In other words, if you're not here to help, then sthu... Dont ***** about his question, dont insult him... Either help, or move on...
Click to expand...
Click to collapse
Uh, I tell you what there buddy. I'll take your post seriously when you can learn some grammar. For all I know I'm talking to a 12 year old know it all who ALSO doesn't know how to keep his mouth shut.
I WAS offering help, by telling him that there is NO POINT in removing the battery. I implied NO disrespect with my post.
If you are referring to problems with certain software causing the phone to overheat and restart/lock up... again that has NOTHING to do with the battery. For example WMWifiRouter, or streaming high kbps video.
The wifi/cellular radio/processor is what is generating the heat.
If you're not charging the battery (IE battery=100%) then there is NO HEAT GENERATED. The heat is not coming from the battery.
poor_red_neck said:
Uh, I tell you what there buddy. I'll take your post seriously when you can learn some grammar. For all I know I'm talking to a 12 year old know it all who ALSO doesn't know how to keep his mouth shut.
I WAS offering help, by telling him that there is NO POINT in removing the battery. I implied NO disrespect with my post.
If you are referring to problems with certain software causing the phone to overheat and restart/lock up... again that has NOTHING to do with the battery. For example WMWifiRouter, or streaming high kbps video.
The wifi/cellular radio/processor is what is generating the heat.
If you're not charging the battery (IE battery=100%) then there is NO HEAT GENERATED. The heat is not coming from the battery.
Click to expand...
Click to collapse
haha yea i know my grammar sucks... its cuz im 11teen...
idiot im an english major... just cuz i like to use ellipses doesnt mean ****.
you have to be the biggest dumbass yet... i just said that if you are tethering your battery will heat up... because you are using the clealluer rdaio for teh bndawthd, in whcih intornet youzes kilobits per second...
haha whatever...
what a poor redneck duck
Double Post...
Ok smartass.
Explain to me how tethering your phone with a charger plugged in and the battery already being charged causes the battery to heat up.
Think long and hard about your answer. Go ahead and post with your "mAd tyt3 h4x tyP1ng s|<Illz DAWG!"
I'm a ****ing electrical engineer, with a Masters. Take your poems and books and literature discussion groups and go **** yourself.
Only way that is going to happen is if the phone is consuming more current than the charger can provide.
IE: The phone is consuming 650ma, but a typical USB charger can only supply 500ma. In that case then the even simpler answer is NO you cannot use a charging adapter with no battery plugged in.
If you're a car guy here's an even better analogy.
Your car has an alternator (generates current) and a battery (stores current).
If your car's alternator is rated at 100A, then at a specified RPM your alternator generates 100 amps of current.
However, at idle your alternator may only be generating 40A.
If you're sitting at a traffic light and your headlights are on, heater blower fan is going, window wipers are on, heated seats are on... you're consuming more power than the alternator can provide. So the car is pulling current from the battery. The second you leave the traffic light and accelerate and your engine is spinning fast enough that the alternator can generate enough current to supply the demand and charge the battery.
Easy buddies!
We all are here to share knowledge we have to each other right?
Plz. don't let a small thing cause big problems!
Please!!!!
as hippy-rific as navi_mappers statement is, i have to agree with him. people are getting a little too angry about this. it was a simple question. unfortunatly it has been answered in contradictory ways. one thing has remained true in most posts though: there is little reason to do what he was trying to do. i believe that he can take that and walk with it. there's no reason that we (as educated and intelligent people) need to resort to name calling and slander. i'd like to think that we are a little better than that. so shut up, stop *****ing and answer the mans question with intelligence damn it! i'd expect this kind of stupid crap over at crackberry.com, not here.
thanks
Thanks for those that replied in an appropriate way.
yeah,some may need therapy in this thread...
haha yea i was havin a bad week... my bad guys
I got an replacement due to my phone beyond repair.
I'm running original stock firmware, of-course rooted. Since the replacement I'm trying to get my phone to full charge but it doesn't and also I notice that the charging is quite slow.
I installed "Battery Monitor Widget" to see how much power it is drawing and found that AC power draws only about 350+mA and sometimes it is as low as 8mA. (Some times it draws about 750+mA). I notice that the temperature also reaches somewhere about 45 to 48 degree.
Once it reaches about 90% or so, it starts to drain battery instead of charing it.
I find it quite abnormal. Anyone with this kind of problem and found an solution?
Thanks in advance for the replies and suggestions.
What I'd sudjest is updating your phone through seus or PC companion or if your an American at & t user update to a newer firmware through the flash tool (you can find I link to it through my signiture) or if you can't update try and use the repair option through seus or PC compainion.
Sent from my X10 using XDA Premium App
The Gingerbread Man said:
What I'd sudjest is updating your phone through seus or PC companion or if your an American at & t user update to a newer firmware through the flash tool (you can find I link to it through my signiture) or if you can't update try and use the repair option through seus or PC compainion.
Sent from my X10 using XDA Premium App
Click to expand...
Click to collapse
Thanks for your reply.
I did that yesterday. I repaired the firmware and reloaded all the application one by one from scratch. The only thing I restored is contacts so that I could eliminate all the other factors which can cause this issue.
My other suggestion would be to install xrecovery and wipe your battery stats I guess. You can find a link to xrecovery through the link in my sig
Sent from my X10 using XDA Premium App
The Gingerbread Man said:
My other suggestion would be to install xrecovery and wipe your battery stats I guess. You can find a link to xrecovery through the link in my sig
Sent from my X10 using XDA Premium App
Click to expand...
Click to collapse
Thanks once again for the reply.
I tired that too every time I try to charge the phone. Still it refuses to complete the charging.
Any other suggestions are welcome.
What about off line charging ie; turning the phone off and doing that way?
Sent from my X10 using XDA Premium App
The Gingerbread Man said:
My other suggestion would be to install xrecovery and wipe your battery stats I guess. You can find a link to xrecovery through the link in my sig
Sent from my X10 using XDA Premium App
Click to expand...
Click to collapse
+1 it helped me off this problem
Sent from my X10i using XDA App
The Gingerbread Man said:
What about off line charging ie; turning the phone off and doing that way?
Sent from my X10 using XDA Premium App
Click to expand...
Click to collapse
Good idea. I will try that as well as try to do a clean wipe and just try to charge with nothing loaded in. That will give a better idea where the problem is.
Thanks for the great tip, I will update you tomorrow.
Had that happen before, I had to remove sim card and let it drain out slowly for a week, then charge. Problem solved
I think I had similar problem, except that my processor went on full load when its almost fully charged causing it to drain the battery instead. Still lookin for answer to that, will wiping battery stats help?
I reset my phone to factory and did a re-flashing again using SEUS and I tried it charging immediately without loading any application (only loaded Battery Monitor Widget from Market to see the battery temperature and mA units drawn) and wow, it charged like a normal X10. So I guess it has something to do with whatever I loaded or modded it with.
I'm trying to find it out. Later tonight I will try to load all the application one-by-one and try again to charge to see whether I can isolate it.
During this process, I did takeout my SIM card for a period of 1 hour or so, so not sure whether that did the trick (If that's the case, thanks to gogogu)
In the meantime, I have a strong feeling it would be due to the flashtool and new recovery, but again there isn't any proof. I suspect this because this is the new thing I did compared to my old phone.
Any thoughts are welcome.
Monitor the CPU usage as well
zymphonyx said:
Monitor the CPU usage as well
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I don't have issues with processor. It works at full throttle when it supposed to work and then goes back to normal.
Hrmmm alright, but if you ever had the draining issue while charging and the battery temp rises up again. Check the CPU usage just incase
After yesterday's event, seems like stable (I did face the same issue once). Not sure which cured it and currently monitoring...
EDIT: Back to square one. The issue started again and the battery refues to fully charge! I'm going mad
Finally given up, sent for service and came back after 5 days of repair.
Repair Notes: No problem found !!!
But today morning I tried to charge and it's the same issue . Makes me go mad. Really, I don't know what to do!
Please help me friends .......
I too have exactly the same problem with my x10i.....
tried everything like rooting, using stock & custom ROMs, etc... still problem persist ...
while charging , power goes from 900mA to 200mA or lower, & doesn't reach 100% full...
i use current widget from market to read the power values ....
please help me friends .... to resolve my problem ...
Thanks a lot...
Makzer.
nobody replying
hello mates...
please reply to my problem dear friends ..
looking forward ...
LiveSquare said:
I got an replacement due to my phone beyond repair.
I'm running original stock firmware, of-course rooted. Since the replacement I'm trying to get my phone to full charge but it doesn't and also I notice that the charging is quite slow.
I installed "Battery Monitor Widget" to see how much power it is drawing and found that AC power draws only about 350+mA and sometimes it is as low as 8mA. (Some times it draws about 750+mA). I notice that the temperature also reaches somewhere about 45 to 48 degree.
Once it reaches about 90% or so, it starts to drain battery instead of charing it.
I find it quite abnormal. Anyone with this kind of problem and found an solution?
Thanks in advance for the replies and suggestions.
Click to expand...
Click to collapse
What program do you use to check your battery temperature. I rememeber there was one that wass bettery draining. The same is also possible with battery level monitor
Sent from X10
Use this tool forum.xda-developers.com/showthread.php?t=1415600
Please read this. There is a lot of batt info on xda just search
http://forum.xda-developers.com/showthread.php?t=871051
I realize that much of this is common knowledge on XDA. Still, every day I see people post about how their phone "loses" 10% as soon as it comes off the charger. I also have friends who can't understand why their battery drains so quickly. Trying to explain this to people without hard numbers is often met with doubt, so I figured that I'd actually plot it out with real data.
So it's not a piece that is optimized for this audience, but I hope that you find it interesting.
--------------------------------------------------
Your Smartphone is Lying to You
(and it's not such a bad thing)
Climbing out of bed, about to start your day, you unplug your new smartphone from its wall charger and quickly check your email. You've left it plugged in overnight, and the battery gauge shows 100%. After a quick shower, you remember that you forgot to send your client a file last night. You pick up your phone again, but the battery gauge now reads 90%. A 10% drop in 10 minutes? The phone must be defective, right?
A common complaint about today's smartphones is their short battery life compared to older cell phones. Years ago, if you accidentally left your charger at home, your phone could still make it through a weeklong vacation with life to spare (I did it more than once). With the newest phones on the market, you might be lucky enough to make it through a weekend.
And why should we expect anything else? Phones used to have a very short list of features: make and receive phone calls. Today we use them for email, web surfing, GPS navigation, photos, video, games, and a host of other tasks. They used to sport tiny displays, while we now have giant touch screens with bright and vibrant colors. All of these features come at a cost: large energy requirements.
Interestingly enough, improvements in battery management technology have compounded the average user's perception of this problem. Older phones were rather inelegant in their charging behavior; usually filling the battery to capacity and then switching to a trickle current to maintain the highest charge possible. This offered the highest usage time in the short-term, but was damaging the battery over the course of ownership. As explained at Battery University, "The time at which the battery stays at [maximum charge] should be as short as possible. Prolonged high voltage promotes corrosion, especially at elevated temperatures."[1]
This is why many new phones will "lose" up to 10% within a few minutes of coming off the charger. The reality is that the battery was only at 100% capacity for a brief moment, after which the battery management system allowed it to slowly dip down to around 90%. Leaving the phone plugged in overnight does not make a difference: the phone only uses the wall current to maintain a partial charge state.
To monitor this, I installed CurrentWidget on my HTC ADR6300 (Droid Incredible), an app that can log how much electric current is being drawn from the battery or received from the charger. Setting it to record log entries every 10 seconds, I have collected a few days worth of data. While many variables are involved (phone hardware, ROM, kernel, etc) and no two devices will perform exactly the same, the trends that I will describe are becoming more common in new phones. This is not just isolated to a single platform or a single manufacturer.
Chart 1 shows system reported battery levels over the course of one night, with the phone plugged in to a charger. Notice that as the battery level approaches 100%, the charging current gradually decreases. After a full charge is reached, wall current is cut completely, with the phone switching back to the battery for all of its power. It isn't until about two hours later that you can see the phone starts receiving wall current again, and even then it is only in brief bursts.
The steep drop in reported battery seen past the 6.5 hour mark shows the phone being unplugged. While the current draw does increase at this point (since the phone is being used), it still cannot account for the reported 6% depletion in 3 minutes. It should also be obvious that maintaining a 100% charge state is impossible given the long spans in which the phone is only operating on battery power.
Using the data from CurrentWidget, however, it is quite easy to project the actual battery state. Starting with the assumption that the first battery percentage reading is accurate, each subsequent point is calculated based on mA draw and time. Chart 2 includes this projection.
Now we can see that the 6% drop after unplugging is simply the battery gauge catching up with reality.
The phone manufacturers essentially have three choices:
1. Use older charging styles which actually maintain a full battery, thereby decreasing its eventual life
2. Use new charging methods and have an accurate battery gauge
3. Use new charging methods and have the inaccurate battery gauge
Option one has clearly fallen out of favor as it prematurely wears devices. Option two, while being honest, would most likely be met with many complaints. After all, how many people want to see their phone draining down to 90% while it is still plugged in? Option three therefore offers an odd compromise. Maybe phone companies think that users will be less likely to worry about a quick drop off the charger than they will worry about a "defective" charger that doesn't keep their phone at 100% while plugged in.
Bump It. Or Should You?
One technique that has gained popularity in the user community is "bump charging." To bump charge a device, turn it off completely, and plug it into a charger. Wait until the indicator light shows a full charge (on the ADR6300, for example, the charging LED changes from amber to green) but do not yet turn the device back on. Instead, disconnect and immediately reconnect the power cord. The device will now accept more charge before saying it is full. This disconnect/reconnect process can be repeated multiple times, each time squeezing just a little bit more into the battery. Does it work?
The following chart plots battery depletion after the device has received a hefty bump charge (6 cycles) and then turned on to use battery power. Note that the system does not show the battery dropping from 100% until well over an hour of unplugged use, at which point it starts to steadily decline. Again, however, it should be obvious that the battery gauge is not syncing up with reality. How could the rate of depletion be increasing over the first 5 hours while the rate of current draw is relatively steady? And why does the projected battery line separate from the reported levels, but then exactly mirror the later rises and falls?
The answer, of course, is that bump charging definitely works. Rather than anchoring our projected values to the first data point of 100%, what happens if we anchor against a later point in the plot?
Aligning the data suggests that a heavy bump charge increases initial capacity by approximately 15%. Note that the only other time that the lines separate in this graph was once again when the phone was put on the charger and topped up to 100%. Just as with the first set of graphs, the phone kept reporting 100% until it was unplugged, dropped rapidly, and again caught up with our projections.
So what does it all mean?
If you absolutely need the highest capacity on a device like this, you will need to bump charge. There are currently people experimenting with "fixes" for this, but I have yet to see one that works. Be warned, however, that repeated bump charging will wear your battery faster and begin to reduce its capacity. If you are a "power user" who will buy a new battery a few months from now anyway, this presumably isn't a concern. If you are an average consumer who uses a device for a few years, I would recommend that you stay away from bump charging. The bottom line is that you don't really "need" to do it unless you are actually depleting your battery to 0% on a regular basis.
If you are someone who can top off your phone on a regular basis, do it. Plug it in when you're at home. Plug it in when you're at your desk. As explained by Battery University, "Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory."[2]
Beyond that, the best advice I can offer is to stop paying such close attention to your battery gauge and to just use your phone. Charge it whenever you can, and then stop obsessing over the exact numbers. If you really need more usage time, buy an extended-capacity battery and use it normally.
From my XPERIA X10S v8.2 on JaBKerneL @ 1.15ghz
I've come across some people that say the GS2 battery should not be drained completely since for this type of battery it's not good.
lckh said:
I've come across some people that say the GS2 battery should not be drained completely since for this type of battery it's not good.
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http://www.google.com/search?q=Is+it+bad+to+completely+drain+a+lithium+ion+battery?
ctomgee said:
http://www.google.com/search?q=Is+it+bad+to+completely+drain+a+lithium+ion+battery?
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Pants - is the only way to describe that post, false info.
It does no harm at all to fully discharge, more problems are caused by giving regular, short charges, than 1 long full charge so i wouldnt believe that.
He also says to charge it 8-10 hours, that total rubbish as well, these batteries dont need 8-10 hours to prime, on average 3-4 hours for a full charge is more than adequate.
I think few year back batteries were far inferior and did indeed need longer charging periods, but not any more, and if ya flash roms a lot and need to calibrate your battery after flashing to a new custom rom indeed part of the calibration process is completely running down the battery, my s2 is well over a year old and has been drained flat many a time and i still get 14 - 20 hours out of it on average, which is damn good for any smart phone these days, That post is on a HTC Thread by the way, Htc notoriously have batteries with a crappy life span, i had a wildfire s, used to get about 6 hours out of the battery.
I don't think that's true.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
graemeg said:
ctomgee said:
http://www.google.com/search?q=Is+it+bad+to+completely+drain+a+lithium+ion+battery?
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Pants - is the only way to describe that post, false info.
It does no harm at all to fully discharge, more problems are caused by giving regular, short charges, than 1 long full charge so i wouldnt believe that.
He also says to charge it 8-10 hours, that total rubbish as well, these batteries dont need 8-10 hours to prime, on average 3-4 hours for a full charge is more than adequate.
I think few year back batteries were far inferior and did indeed need longer charging periods, but not any more, and if ya flash roms a lot and need to calibrate your battery after flashing to a new custom rom indeed part of the calibration process is completely running down the battery, my s2 is well over a year old and has been drained flat many a time and i still get 14 - 20 hours out of it on average, which is damn good for any smart phone these days, That post is on a HTC Thread by the way, Htc notoriously have batteries with a crappy life span, i had a wildfire s, used to get about 6 hours out of the battery.
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My post is full of false info? The one linking to direct Google search of the OP's question? Interesting.
ctomgee said:
My post is full of false info? The one linking to direct Google search of the OP's question? Interesting.
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Hmmmmmm, no, you didnt start the thread, i was replying to the starter of the discussion, not yours.
More importantly, where is your link meant to point, coz from what i can see it only points to a google search and not to any specific document, unlike donalgodon who posted a very interesting and intriguing link indeed with so much info
graemeg said:
Hmmmmmm, no, you didnt start the thread, i was replying to the starter of the discussion, not yours.
More importantly, where is your link meant to point, coz from what i can see it only points to a google search and not to any specific document, unlike donalgodon who posted a very interesting and intriguing link indeed with so much info
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Which was actually one of the results of the google search, if you bothered to look.
I was trying to impart the fact to the OP that he could easily find this info himself.
Also, if you were replying to him, then why did you quote my post, saying "Pants - is the only way to describe that post, false info"? Context is important.
ctomgee said:
Which was actually one of the results of the google search, if you bothered to look.
I was trying to impart the fact to the OP that he could easily find this info himself.
Also, if you were replying to him, then why did you quote my post, saying "Pants - is the only way to describe that post, false info"? Context is important.
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aBSOLUTLEY, QUOTING YOURS WAS INDEED AN ERROR ON MY BEHALF, SPOSE DUE TO TIRED EYES SO APOLOGIES IF THAT CONFUSED YOU INTO THINKING I WAS MEANT TO QUOTE YOU, WAS INTENDED FOR THE ORIGINAL THREAD STARTER.
See what i mean, just realised i hit caps lock instead of shift, hmmmm, oh also yes i agree completely, google is completely the place to look so point taken, its suprising what you can ask google and still get an answer, i dont think some people realise that if they have a question in mind, then the likelihood is, someone else already asked it, yet they still dont google it, or maybe its just down to laziness that people dont goole anymore.
graemeg said:
aBSOLUTLEY, QUOTING YOURS WAS INDEED AN ERROR ON MY BEHALF, SPOSE DUE TO TIRED EYES SO APOLOGIES IF THAT CONFUSED YOU INTO THINKING I WAS MEANT TO QUOTE YOU, WAS INTENDED FOR THE ORIGINAL THREAD STARTER.
See what i mean, just realised i hit caps lock instead of shift, hmmmm, oh also yes i agree completely, google is completely the place to look so point taken, its suprising what you can ask google and still get an answer, i dont think some people realise that if they have a question in mind, then the likelihood is, someone else already asked it, yet they still dont google it, or maybe its just down to laziness that people dont goole anymore.
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Mine was a rhetorical question, but it's all good, dude.
Lol, short version: Depending on the battery type you will want to drain it completely before charging or never drain it completely. Let it charge fully overnight or it only needs a few hours.
Seriously, do some reasearch on batteries. Figure out what types there are, how they are different, and what makes them different. each has advantages and disadvantages.
Every battery type is a little different. For our phones will be different than for your rechargable nicad batteries at home, or the batteries in your remote control vehicles.
Bottom line: We COULD tell you, but that would be defeating the purpose. Instead we are pointing you in the right direction to acquire the knowledge yourself. Happy hunting! let us know how it works out!
In simple, it actually causes more harm discharging the battery to empty.
There is alot of do's and donts to preserve the battery,
Info:
The Li‑ion charger is a voltage-limiting device that is similar to the lead acid system. The difference lies in a higher voltage per cell, tighter voltage tolerance and the absence of trickle or float charge at full charge. While lead acid offers some flexibility in terms of voltage cut‑off, manufacturers of Li‑ion cells are very strict on the correct setting because Li-ion cannot accept overcharge. The so-called miracle charger that promises to prolong battery life and methods that pump extra capacity into the cell do not exist here. Li-ion is a “clean” system and only takes what it can absorb. Anything extra causes stress.
Most cells charge to 4.20V/cell with a tolerance of +/–50mV/cell. Higher voltages could increase the capacity, but the resulting cell oxidation would reduce service life. More important is the safety concern if charging beyond 4.20V/cell. Figure
Discharging:
Li-ion should never be discharged too low, and there are several safeguards to prevent this from happening. The equipment cuts off when the battery discharges to about 3.0V/cell, stopping the current flow. If the discharge continues to about 2.70V/cell or lower, the battery’s protection circuit puts the battery into a sleep mode. This renders the pack unserviceable and a recharge with most chargers is not possible. To prevent a battery from falling asleep, apply a partial charge before a long storage period.
Battery manufacturers ship batteries with a 40 percent charge. The low charge state reduces aging-related stress while allowing some self-discharge during storage. To minimize the current flow for the protection circuit before the battery is sold, advanced Li-ion packs feature a sleep mode that disables the protection circuit until activated by a brief charge or discharge. Once engaged, the battery remains operational and the on state can no longer be switched back to the standby mode.
Do not recharge lithium-ion if a cell has stayed at or below 1.5V for more than a week. Copper shunts may have formed inside the cells that can lead to a partial or total electrical short. If recharged, the cells might become unstable, causing excessive heat or showing other anomalies. Li-ion packs that have been under stress are more sensitive to mechanical abuse, such as vibration, dropping and exposure to heat.
And may i point out, this is a community, People ask questions and peoples feedback, the web is not always correct and nor is the information you find.
It takes more effort to argue with someone and to point someone in the right direction, instead of just answering there question.
We have all been New here once before.
dave7802 said:
In simple, it actually causes more harm discharging the battery to empty.
There is alot of do's and donts to preserve the battery,
Info:
The Li‑ion charger is a voltage-limiting device that is similar to the lead acid system. The difference lies in a higher voltage per cell, tighter voltage tolerance and the absence of trickle or float charge at full charge. While lead acid offers some flexibility in terms of voltage cut‑off, manufacturers of Li‑ion cells are very strict on the correct setting because Li-ion cannot accept overcharge. The so-called miracle charger that promises to prolong battery life and methods that pump extra capacity into the cell do not exist here. Li-ion is a “clean” system and only takes what it can absorb. Anything extra causes stress.
Most cells charge to 4.20V/cell with a tolerance of +/–50mV/cell. Higher voltages could increase the capacity, but the resulting cell oxidation would reduce service life. More important is the safety concern if charging beyond 4.20V/cell. Figure
Discharging:
Li-ion should never be discharged too low, and there are several safeguards to prevent this from happening. The equipment cuts off when the battery discharges to about 3.0V/cell, stopping the current flow. If the discharge continues to about 2.70V/cell or lower, the battery’s protection circuit puts the battery into a sleep mode. This renders the pack unserviceable and a recharge with most chargers is not possible. To prevent a battery from falling asleep, apply a partial charge before a long storage period.
Battery manufacturers ship batteries with a 40 percent charge. The low charge state reduces aging-related stress while allowing some self-discharge during storage. To minimize the current flow for the protection circuit before the battery is sold, advanced Li-ion packs feature a sleep mode that disables the protection circuit until activated by a brief charge or discharge. Once engaged, the battery remains operational and the on state can no longer be switched back to the standby mode.
Do not recharge lithium-ion if a cell has stayed at or below 1.5V for more than a week. Copper shunts may have formed inside the cells that can lead to a partial or total electrical short. If recharged, the cells might become unstable, causing excessive heat or showing other anomalies. Li-ion packs that have been under stress are more sensitive to mechanical abuse, such as vibration, dropping and exposure to heat.
And may i point out, this is a community, People ask questions and peoples feedback, the web is not always correct and nor is the information you find.
It takes more effort to argue with someone and to point someone in the right direction, instead of just answering there question.
We have all been New here once before.
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Indeed, not everything on the web is correct.
But may I point out that all you did was copy and paste text from this page, which donalgodon linked in post 4, and again, I feel I must point out, was actually one of the results in the Google search I linked him to.
The point I was trying to make, and seems lost on you, is teaching people how to look for stuff on their own. No one should just expect to be spoon-fed information. That is lazy to just post a question on a forum, sit back, and watch the answers roll in. You should do your own legwork and research.
As the old adage states: give a man a fish, and you feed him for that day. Teach a man to fish, and he is fed forever.
Hi Guys,
I am a technician at a local Sprint store. I've had a sudden influx of customer who are experiencing problems with their S3 discharging quickly. Yesterday I had a S3, I removed the battery to test the voltage with a CEN-TECH Digital Multimeter. The setting of the voltage meter is set to DCV 20. I plugged the phone into a charger and tested the voltage output only to recieve a 0.00 reading.(yes i tried multiple chargers) When I put the battery back into the phone, the battery had lost 20%. This is a problem that I would like to find a fix for so that I no longer have to order replacement phones for customers.
My background...
I started as a sales rep, became a assistant store manager, starting college in the fall so I dropped down to a technician.
I am going into the informatics field so i thought it would be best to become a technician. I am farely new to the technician spot but still know alot about computers and technology.
Please help me out =)
This is not a Sprint forum see sticky top of the page .
jje
So this is a long debate I guess,
Should I charge my device overnight and sleep? Does it affect my phone's health. My uncle who happens to be a telecom engineer and also thinks of him as a pro in Electronics says there is an auto circuit that cuts off as soon as the battery reaches to 100.
As far as I have read hardware, the auto-cut feature is present only in selected high end phones.
I don't want to end up with wrong infos.
I need accurate information by experts.