Related
That's right... For some stupid reason, our phones don't detect when the battery is ACTUALLY full. Getting annoyed with the having to charge my phone twice a day, I stuck my battery in my old Touch Pro 2 (left it powered off) and plugged it in... It took about 5 hours for it to fully charge and I let it sit for another hour.
I took it off the charger at 11AM... It is now 11PM and I'm at 68% and I've been doing more browsing and downloading than usual. Previously, I would have hit 20% by now and had to plug in the charger.
Once you charge the battery in this manner once, it should be fine from there because the cells have been fully charged for the first time. As long as you don't drain the device completely, you shouldn't run into battery issues.
Ordered a multi-function battery charge and two aftermarket TP2 "1500mAh" batteries from eBay, all for $11, hopefully they're good
I've been pounding the hell out of this thing today... I've racked up 8 hours of "active" usage... so actually I've used my phone more than normal.
The first clue for me was the fact that my battery didn't drop from 100% to 90% in five minutes like it was before... It would usually drop to 80 within an hour, even on standby...
It was at 92% when I got to work at noon.
Unreal, I never thought I would search ebay for a phone with a BAD esn
What I think is unreal is that our 2010 devices can't do something other devices have been able to do since 2006... AT LEAST 2006...
I'm running fresh .3 and I've had the phone unplugged for 1d 0h 15m and still have 30% left... so I don't have an issue with the battery at all.
EtherealRemnant said:
What I think is unreal is that our 2010 devices can't do something other devices have been able to do since 2006... AT LEAST 2006...
Click to expand...
Click to collapse
I have an IPAQ Pocket PC from 2002 that detects and charges its lithium battery just fine!
Plancy said:
Ordered a multi-function battery charge and two aftermarket TP2 "1500mAh" batteries from eBay, all for $11, hopefully they're good
Click to expand...
Click to collapse
I have two of these chargers and 4 batteries. I keep two at work and two at home.
These chargers top the battery completely off. I can take a battery that is "fully charged" in the phone and put it in the charger and it will still need 20-30 minutes of charging. The batteries off the charger will stay at 100% for up to 20 minutes, the ones charged in the phone plunge within 1 minute for me.
I really hope this issue can be fixed with a software update. Charging once a day is one thing, but having to take the cover off, battery out and reboot every morning is not acceptable. Not to mention that I rely on my phone while it is charging for emergency calls.
ramiss said:
I really hope this issue can be fixed with a software update. Charging once a day is one thing, but having to take the cover off, battery out and reboot every morning is not acceptable. Not to mention that I rely on my phone while it is charging for emergency calls.
Click to expand...
Click to collapse
AFAIK it affects all HTC Android devices. HTC is lazy. Anyway I even put my old TP battery which hasn't been charged for at least 6 months in and charged it with the TP. It appears the first 5% is dead but it is still kicking ass and taking names over the charge I get from the evo.
myth_mn said:
I'm running fresh .3 and I've had the phone unplugged for 1d 0h 15m and still have 30% left... so I don't have an issue with the battery at all.
Click to expand...
Click to collapse
Your battery was probably charged to capacity before they sold you the phone. Once a lithium ion battery has been charged to 100% it maintains its charge unless you screw it up by running it down to empty a few times. The problem is that for whatever reason HTC didn't see fit to charge all batteries to their max first even full well knowing that they won't get conditioned properly by the phone.
EtherealRemnant said:
AFAIK it affects all HTC Android devices. HTC is lazy.
Click to expand...
Click to collapse
Er...the TP2 is an HTC device though!
EtherealRemnant said:
I stuck my battery in my old Touch Pro 2 (left it powered off) and plugged it in...
I took it off the charger at 11AM... It is now 11PM and I'm at 68% and I've been doing more browsing and downloading than usual. Previously, I would have hit 20% by now and had to plug in the charger.
Once you charge the battery in this manner once, it should be fine from there because the cells have been fully charged for the first time. As long as you don't drain the device completely, you shouldn't run into battery issues.
Click to expand...
Click to collapse
danknee said:
I have two of these chargers and 4 batteries. I keep two at work and two at home.
These chargers top the battery completely off. I can take a battery that is "fully charged" in the phone and put it in the charger and it will still need 20-30 minutes of charging. The batteries off the charger will stay at 100% for up to 20 minutes, the ones charged in the phone plunge within 1 minute for me.
Click to expand...
Click to collapse
Did you buy from tuttoit on eBay?
Plancy said:
Ordered a multi-function battery charge and two aftermarket TP2 "1500mAh" batteries from eBay, all for $11, hopefully they're good
Click to expand...
Click to collapse
I did too, but think mine is defective. The batteries are pretty good for backup purposes and do their job. My wall charger sucked though. I had a Droid Eris hooked up via USB and a battery on the charger. After about an hour and a half, the Eris charged fine, but the battery was like at 30%.
Now the deal breaker is when I got home. I tried to charge a battery and my EVO via USB. When ever I hooked up the USB my phone litterally lagged almost would freeze to a point. I removed the USB cable and phone worked fine. So in all my charger sucked and can charge the battery but really slow.
I ended up just charging the batteries with the OEM charger and EVO turned off.
ramiss said:
Er...the TP2 is an HTC device though!
Click to expand...
Click to collapse
Yes, but an HTC Windows Mobile device, not Android.
I think OP is talking about the TP2 OEM battery, not some knock off that you buy off ebay. FYI there are tons of battery for TP2, so it would have been better if the OP can tell us exactly which one he got. Check out batteryboss for comparsion:
http://batteryboss.org/
Could there potentially be a software fix to make the evo handle battery management better, like the tp2?
nebenezer said:
Could there potentially be a software fix to make the evo handle battery management better, like the tp2?
Click to expand...
Click to collapse
I am dying for Lumos on my EVO. I don't think the auto brightness control works for crap on my phone.
lettcco said:
I think OP is talking about the TP2 OEM battery, not some knock off that you buy off ebay. FYI there are tons of battery for TP2, so it would have been better if the OP can tell us exactly which one he got. Check out batteryboss for comparsion:
http://batteryboss.org/
Click to expand...
Click to collapse
Actually i was talking about putting your evo battery IN a touch pro 2 in order to charge all the cells.
So this is the reason why the EVO appears to be charging its battery so fast. I plugged it in, and it takes less than an hour to start beeping "I'm full."
......Because it's not really full.
That would explain why I was about to sleep, the EVO was charged, and I got an email, so it kept beeping every 10 minutes or so. which was annoying. I had to unplug it so I could sleep. I slept only 7 hours, and I heard the phone on the little table beeping again like crazy in the morning. I checked what it wanted, and it was the super warning that the battery was about to die.
No use at all in 7 hours, and the battery went from "fully" charged to almost ZERO.
I was almost crying of laughter. I just thought what a piece of junk. Hopefully I'm wrong.
----
Now, let's watch the soccer game, let's see how the USA does.
Well... I completely stopped charging my phone with the wall charger and I am now just using either my car charger or USB and i've noticed my phone over the last two days has probably doubled in being able to hold a charge. Today I made approximately 2 or 3 30 minute - 1 hour calls, used the internet approximately 20 times for about 5 minutes each time and used SNESnoid for approximately 1 hour straight and my battery was at 40% after a 10 hour work day, not too shabby. Not to mention I also don't get that annoying 10% drop within 10 minutes of unplugging the phone anymore
I've seen a ton of other battery tip's but I've yet to see any actually say stop using a wall charger all together. Here's to hoping this helps someone
Lol thanks for the tip. I highly doubt this is anymore then a placebo but good luck to whoever tries it. Not calling you OP I am just finding it hard to believe.
Furthermore, have you tried reseting your battery stats. I mean the initial 100-90 percent drop you are calling to quick sounds like its the fault of bad battery stats. If you need a link to how to reset your battery PM me only because I might not check back to this post lol.
DirtyShroomz said:
Well... I completely stopped charging my phone with the wall charger and I am now just using either my car charger or USB and i've noticed my phone over the last two days has probably doubled in being able to hold a charge. Today I made approximately 2 or 3 30 minute - 1 hour calls, used the internet approximately 20 times for about 5 minutes each time and used SNESnoid for approximately 1 hour straight and my battery was at 40% after a 10 hour work day, not too shabby. Not to mention I also don't get that annoying 10% drop within 10 minutes of unplugging the phone anymore
I've seen a ton of other battery tip's but I've yet to see any actually say stop using a wall charger all together. Here's to hoping this helps someone
Click to expand...
Click to collapse
Hmmm... I don't think that USB/Wall would actually make a overall difference in battery life but it could be that it doesn't "idle the charging" when you hit close to a full charge. So you're probably just getting the extra 5-10% that you mentioned.
twilk73 said:
Lol thanks for the tip. I highly doubt this is anymore then a placebo but good luck to whoever tries it. Not calling you OP I am just finding it hard to believe.
Furthermore, have you tried reseting your battery stats. I mean the initial 100-90 percent drop you are calling to quick sounds like its the fault of bad battery stats. If you need a link to how to reset your battery PM me only because I might not check back to this post lol.
Click to expand...
Click to collapse
Ehh... I don't make BS threads, never have and those that know me from the Hero forums can vouch. Just posting my findings
Award Tour said:
Hmmm... I don't think that USB/Wall would actually make a overall difference in battery life but it could be that it doesn't "idle the charging" when you hit close to a full charge. So you're probably just getting the extra 5-10% that you mentioned.
Click to expand...
Click to collapse
I know for a fact im getting the initial 10% but I looked at my battery today at 12:40 tonight before leaving work thinking "ahh crap I haven't charged it it's got to be at, at least 5-15% and nope, it was exactly 39%, I was amazed. Talked to a girl for about 40 minutes on my drive home, talked to another friend for 5 and battery dropped to 35%
I've noticed this as well. Days that I've only used my moto car charger, the battery (even the cheap ebay ones) seem to hold the charge better, which I thought was strange, because you would think it would be a worse -maybe equal- change.
Charges more slowly and fills up more?
oOflyeyesOo said:
Charges more slowly and fills up more?
Click to expand...
Click to collapse
That's my theory
This is the case with most batteries, and I thought it was common knowledge with Li-ion. The lower the current you charge with, the better the charge.
Using the higher amperage wall charger lets you hit the voltage peak quicker but, the topping charge will take longer. A lot of car chargers are just as high amperage as wall chargers.
Other things you can do to try maintain the capacity of the battery over the course of its life:
-NEVER let it get hot (whether from heavy usage or keeping it in a hot car or the sun)
-never deep cycle (totally kill the battery)
-try to keep it between 40 - 60% charge for most of its life (Li-ion batteries do not like being at full charge or no charge)
Doing any of these things once will not destroy the battery, but by the 500th charge cycle, you can bet your ass it will.
http://batteryuniversity.com/partone-12.htm
DirtyShroomz said:
2 or 3 30 minute - 1 hour calls
internet 20 times
SNESnoid
...
work day
Click to expand...
Click to collapse
Sounds like my kind of job! Seriously, I use USB (through a laptop) and car chargers almost exclusively and I have no real complaints about battery life. And by that I mean it gets me through the day, which is all I've come to expect from phones for the past few years. But I did happen to use a wall charger last night, and I have JuicePlotter active, so I did some checking.
Comparing my last overnight charge using my laptop's USB to last night's charge through a wall adapter, I found that the charging was actually faster through the laptop. I see that the charge tends to drop off as it approaches 100%, so I took pairs of points from uniform sections of each plot for my comparison:
Laptop USB:
44% to 82% in 41 minutes = 0.927% / min
Wall:
63% to 91% in 37 minutes = 0.757% / min
kzibart said:
Sounds like my kind of job! Seriously, I use USB (through a laptop) and car chargers almost exclusively and I have no real complaints about battery life. And by that I mean it gets me through the day, which is all I've come to expect from phones for the past few years. But I did happen to use a wall charger last night, and I have JuicePlotter active, so I did some checking.
Comparing my last overnight charge using my laptop's USB to last night's charge through a wall adapter, I found that the charging was actually faster through the laptop. I see that the charge tends to drop off as it approaches 100%, so I took pairs of points from uniform sections of each plot for my comparison:
Laptop USB:
44% to 82% in 41 minutes = 0.927% / min
Wall:
63% to 91% in 37 minutes = 0.757% / min
Click to expand...
Click to collapse
Hah, yeah my job is pretty amazing sometimes but I have def quit using the wall charger (unless I absolutely have nothing else around)
As far as for droiddev... this is my first phone where charging it from different devices gives me different results. I don't see where it would be common sense, Li-ion batteries are not supposed to not have these memory leak/hold issues like past batteries. A charge is a charge to li-ion batteries, but not in this case.
DirtyShroomz said:
As far as for droiddev... this is my first phone where charging it from different devices gives me different results. I don't see where it would be common sense, Li-ion batteries are not supposed to not have these memory leak/hold issues like past batteries. A charge is a charge to li-ion batteries, but not in this case.
Click to expand...
Click to collapse
Not sure what you mean, but you will get the most life out of your battery by charging it short spurts at a time over USB. Read the article I linked to and you will see what I mean, but you can get the best charge into your battery by slowly ramping up in steps with a low current charger.
Hi everyone,
How long do you charge your SGT to an ac/dc outlet? And how long does the battery life lasts after its fully charged?
Advance thanks!
For mine, charging time (AC) typically 4 hours (from 5 to 10% left). Usage time is subjective, continuous usage on games or music varies differently. I should said, about 6 hrs plus of continously usage on WIFI & games.
Mine takes a long time to charge, nearly 7-8 hours from 0 to full! Don't know why it's so slow considering I am using the original power cable provided by Samsung!
By far the quickest method to charge the Tab is to first power it down so it is totally switched off.
Now plug in the cable and charge using the supplied power plug.
You will notice a marked difference in time taken to charge fully.
Pat123 said:
Mine takes a long time to charge, nearly 7-8 hours from 0 to full! Don't know why it's so slow considering I am using the original power cable provided by Samsung!
Click to expand...
Click to collapse
This is an important issue so shall we do a systematic comparison? First,we will charge the battery 100% then we will watch a movie at 100% brightness setting for exactly 1hour. Close the movie and check battery %, report here. Game?
According to my usage scheme (except calling), I manage to get 2 days on my GTab when my NS or MT4 needs to change battery once during a day.
Mine takes about 3 1/2 to 4 hours from about 20-30%. I did a lot of reading on lithium ion batteries and what I found is that the more you fully discharge and charge the worse the battery gets, which is the EXACT OPPOSITE of the old style nickel cad batteries.
In order to prolong the life of your SGT battery (which is crucial since we cant removie it) it is recomended that you top off your charge whenever you can. I work part time and am a full time college student so I always have about 4 hours every morning, wether its at work or at home. So once a day I charge my tab, its usually in the 20%-50% range when I charge it.
Just make sure that you do infact have the time to complete the full charge and remember that the last 10% will take the same amount of time as the first 40% due to the fact that li-ion's do the trickle charge at the end.
I charge it over night, every 2 days
For me the longer charge time usually is from 99% to fully charge. That can take up to an hr.
n2s2k2india said:
This is an important issue so shall we do a systematic comparison? First,we will charge the battery 100% then we will watch a movie at 100% brightness setting for exactly 1hour. Close the movie and check battery %, report here. Game?
Click to expand...
Click to collapse
Yep, sounds good! Also, let's keep the phone radios ON i.e. no airplane mode and the movie should be running from External SD card! Will try it out tonight with 3 Idiots movie which was bundled with my Tab
Pat123 said:
Yep, sounds good! Also, let's keep the phone radios ON i.e. no airplane mode and the movie should be running from External SD card! Will try it out tonight with 3 Idiots movie which was bundled with my Tab
Click to expand...
Click to collapse
I watched a full movie. There was a drop of 20%. Normal?
MasterRy88 said:
Mine takes about 3 1/2 to 4 hours from about 20-30%. I did a lot of reading on lithium ion batteries and what I found is that the more you fully discharge and charge the worse the battery gets, which is the EXACT OPPOSITE of the old style nickel cad batteries.
In order to prolong the life of your SGT battery (which is crucial since we cant removie it) it is recomended that you top off your charge whenever you can. I work part time and am a full time college student so I always have about 4 hours every morning, wether its at work or at home. So once a day I charge my tab, its usually in the 20%-50% range when I charge it.
Just make sure that you do infact have the time to complete the full charge and remember that the last 10% will take the same amount of time as the first 40% due to the fact that li-ion's do the trickle charge at the end.
Click to expand...
Click to collapse
Thanks for pointing out.I was following the old ni-cad battery method! So,basically you and Beards above are contradictory?
Differences between both types of batteries.
http://www.ehow.com/about_5449906_lithium-vs-nickel-cadmium-batteries.html
Basically, no harm discharging the batteries if constantly using. However, it is best to charge it before storage (probably for a period of time) and do a full charge when using.
3-4 hours charging time. one time i got it to last for 3 days (79 hours). i have a screencap but i need 3 more posts to put the links here. my normal usage is 2 days.
henrylam said:
Differences between both types of batteries.
http://www.ehow.com/about_5449906_lithium-vs-nickel-cadmium-batteries.html
Basically, no harm discharging the batteries if constantly using. However, it is best to charge it before storage (probably for a period of time) and do a full charge when using.
Click to expand...
Click to collapse
Lithium rechargeable battery dies totally (no longer accept charge) if it's left totally discharged for a few months. In addition, it's better to "condition" (totally let it runs out and charge it immediately till it full after about 1-2 months of use) to keep optimized performance.
n2s2k2india said:
Thanks for pointing out.I was following the old ni-cad battery method! So,basically you and Beards above are contradictory?
Click to expand...
Click to collapse
When I said "power it down" I did not mean to let the Tab run down until it powered off.
What I was saying is to get the quickest charge method it is best to 'switch off' the Tab ('power it down' & 'switch off' = same meaning).
The correct usage for the Tab's battery is when new to first fully charge and then discharge several times. Once you have done this the battery will be optimized.
From now on it is best to keep the battery 'semi-full' and not let it run down completely. I normally let mine run down to around 50% and then recharge to full.
However, after every 30 recharges it is a good idea to 'reprogram' the battery by clearing out any memory loss (I know, I know... they don't suffer memory loss). What you need to do is after every 30 recharges let the battery run completely down and I mean completely until it will switch itself off.
Now with the Tab switched off, recharge. Once the large green battery icon is full leave it in for a further 1hr then disconnect.
If you are not going to use the Tab for a long and lengthy period (heavens knows why though), to optimize the battery never stow away a battery which is in a Full Charge.
Batteries that are not going to be used for a lengthy period should only be charged to around 70% and then left in a cool and dry place.
That was very instructive ,infact I copy pasted it in Color Notes. So, basically, 30 recharges is like once a month, I can put a reminder in the Calender. Thanks and I also pressed the button.
n2s2k2india said:
That was very instructive ,infact I copy pasted it in Color Notes. So, basically, 30 recharges is like once a month, I can put a reminder in the Calender. Thanks and I also pressed the button.
Click to expand...
Click to collapse
No problem...
...... and thanks for the vote. All votes are gratefully received as they are converted into a charitable donation.
I have had it plugged into the mains, running tunein radio through wifi and its gone from 85% to 86% in one hour.
If I charge from 10% with phone off it takes about 4 hours to fully charge
If I charge from 10% with my phone on running stuff, it actually never gets to fully charges by the time I finish work...at 6pm
Sorry to keep comparing to the dreaded FruitPhone, but that would charge whilst running wifi and tunein from 10% to 100% in about 2 hours.
I am beginning to think my SGS2 is faulty
i am fiding it takes about 3 hours to charge from empty . It does take a long time indeed but i guess it is what we have to do for a 1650mah battery
3 hours from empty with stock charger .
jje
it might well be a 1650 battery, but it starts to get unusable when it takes all day to charge then a few hours to loose it all.
This phone is the greatest but the battery life just completely destroys it, I am beginning to think I made the wrong choice
JJEgan said:
3 hours from empty with stock charger .
jje
Click to expand...
Click to collapse
Is that while using it?
you are not supposed to use the phone when its charging its really bad for the battery it gets very warm during charging as it is...
virussnake said:
you are not supposed to use the phone when its charging its really bad for the battery it gets very warm during charging as it is...
Click to expand...
Click to collapse
Aye... if I don't the bloomin thing would be dead by lunchtime, and I listen to music.
So I basically have to turn it off not use it so I can charge it, how crap is that, owned my iphone a year never had any problems with battery and I always used and charged in its dock.
The desire had slow charging too but snq- fixed this in his kernels maybe we can port his fix to our kernels
btw it's true li-ion batteries degrade quicky when the heat up (or completely charge or discharge)
From 30% it took me one hour and a half to fully charge..
I recommend to download battery mix as it takes very good statistic on the battery life and one can tell exactly how long it takes to charge and discharge
Sent from my GT-I9100 using XDA App
just for the record all Lion batteries in phones never fully discharge or recharge, as there balanced by a balancing chip.
when you get to the likes of 0% you actually have 20% charge, thats why you can power on the phone but it will immediately switch off again. like wise, charging you never reach 100%, it's more like 89%, again because of how Lion works.
if you fully discharged and fully recharged, well put it simply you'd have a lot of exploding phones, fire and chemical burns...
Interesting!
My phone charges in about 2,5 - 3 hours, so should be normal...
But charging with the usb cable connected to the pc it takes much longer.
Any of you experience the same thing?
greets!
THUDUK said:
I have had it plugged into the mains, running tunein radio through wifi and its gone from 85% to 86% in one hour.
If I charge from 10% with phone off it takes about 4 hours to fully charge
If I charge from 10% with my phone on running stuff, it actually never gets to fully charges by the time I finish work...at 6pm
Click to expand...
Click to collapse
Because:
a) That´s how Li-Ion-batteries are charged. To fully charge a Li-Ion-battery you need 3-4h.
b) The power-supply is pretty weak. It is just enough to charge the phone at decent speed, but it is not enough to charge it and intensely use it the same time. In this case much of the power is used by the phone and there is not enough left to do a proper charging. I use a 1,2A power-supply from my old Nokia, and while it won´t speed up charging itself, at least it slows down less when I´m using the phone while charging.
Sorry to keep comparing to the dreaded FruitPhone, but that would charge whilst running wifi and tunein from 10% to 100% in about 2 hours.
Click to expand...
Click to collapse
This is not possible. The mighty fruity-phone may tell you it is 100% charged, but certainly it isn´t
You can charge a Li-Ion-battery very fast from 0 to 70-85% you could reach this in 1h. But you have to charge the remaining 15-30% very slowly, otherwise the voltage would raise too much and destroy your battery.
The so called saturation-stage (the charging-stage until 100%) takes longer the faster you charged at the beginning. If you really charged until the saturation-stage in 1h, the saturation-stage will take 2-3h.
If you charge slower, so you reach saturation-stage after 2h, the saturation-stage will only take 1-2h anymore.
In the end it will always take 3-4h to fully charge a Li-Ion-cell, regardless how strong your power-supply is.
Another few notes:
Charging will get slower the fuller the battery already is.
Using the phone with low battery-percentage will lengthen the charging-time quite a bit, a stronger power-supply could help.
Getting the last 20% in a Li-Ion-cell will always be very slow, usage of the phone won´t influence this a lot, and a stronger power-supply can´t help.
It doesn´t matter much, how much charge is left in the battery, to fully charge it it will always take long, as you spend most of the time in the saturation-stage (the higher the left percentage is, the more time you spent in saturation-stage)
I am beginning to think my SGS2 is faulty
Click to expand...
Click to collapse
It is not faulty, it is designed this way.
It took 3 hours 10 minutes to fully charge my dog and bone yesterday whilst off
Thanks for the explanation!
jonny68 said:
It took 3 hours 10 minutes to fully charge my dog and bone yesterday whilst off
Click to expand...
Click to collapse
Your having a bubble bath ain't you mate
Your battery sounds faulty to me, taking over 4 hours and only charging 1 percent in an hour. Try the battery calibration app in the market, if it doesn't improve get it swapped mate
[email protected]
Sent from my Samsung Galactic Crusader S II
The wifi is the killer, try turning it off when charging your phone..
Sent from my GT-I9100 using XDA App
it takes so long to charge because samsung capped the charge current at 650 mA in the battery driver. but other phones like HTC allow charging at the full 1 amp. so that's why its a slow charge, and why its possible to drain the battery even while plugged in to the charger.
Now who wants to ask kernel developers to increase that to .850 or 1 amp and use that lol.
I believe lack of heatsink due to design is the culprit behind decision to cap it at .650.
Sent from my GT-I9100
3 hrs to fully charge, and as i use tunein radio a lot i can tell you on my device with the screen off, wifi on with tunein running, it still seems to take no more than 3 hours maybe 15 mins more at most
I am probably going to order a cheap eBay Li-Ion battery that's 1800mAH and likely has a charge cap closer to 1000mAH. I will know in a week when I finally get my phone and report back if that battery helps. I expect it to heat up while charging and am going to use an external charger.
Two replacement batteries and an external charger go for about $12 USD on eBay btw.
I have had my S2 for about 4 weeks now. The internet at home conked out so I have been using the the wifi sharing feature on the phone a lot - like 4-5 hours each day for the last ten days, and since this feature eats up battery real phast, its been sitting on the charger for most of that time, and then some more.
Now since the last two days, the phone doesnt charge anymore. In fact it drains battery whilst connected to the charger. The battery lasts about 2-3 hours now with moderate usage. I managed to get it to full charge when it was switched off and charged overnight for 6 hours. I've attached the results after that full charge
This is after the phone was plugged in for about 20 minutes. If you notice on the right side, the battery is draining while its plugged in!!!! The big drop was reading and sending a few emails, reading some news etc.
I installed some battery monitor apps from the market and they showed the battery being in good health. Any suggestions ?
Try recalibirating it..
let it run down completely and full charge ( don't use when charging) then use until almost dead again ( don not use charger in between) and full charge again.
Seee if that helps or go get a new battery :/
So after a bit more testing, I notice the phone charges at a normal rate when its switched of.
However when its running, then it doesn't charge at all, and over time drains battery, but does drain slower that it would if its not charging.
So one of two options
a) Battery's charge capacity is severely depleted, and is not able to hold much charge. However this battery is less than 4 weeks old~
b) There is something that is absolutely devouring the battery. (screen is what shows up us having used 60% of the battery)
If its battery, will it be covered under warranty? If its something else, how do i fix it. I'm still on 2.3.3 but this seems a bit extreme for the AOS or WIFI bug.
tfn said:
let it run down completely and full charge ( don't use when charging) then use until almost dead again ( don not use charger in between) and full charge again.
Click to expand...
Click to collapse
So thats pretty much what ended up happening, it died completely, had to charge it overnight to full charge...and still only lasted a couple of hours.
My guess is that the constant load on the battery running a hotspot has hooped it. Might get warranty support if you don't disclose how you were "abusing" the battery.
Cheap temporary solution is to buy a set of cheap knockoff batteries from Ebay, less cheap is to spring for a genuine Samsung unit. Long term solution is to get your home internet working again.
First step would be to backup all data and factory reset .
That fails i would return under warranty .
jje
Just an update - I removed all the widgets from the home screens and its actually charging now I had the AP widget, the stock price, accuweather, a few widgetdroids, flashlight, photo frame, espn news, touchdown calendar and pulse.
Its not even a month old... and runs pretty damn hot as it is, I dont want to take a chance by using a cheap battery. If i have to, I'll buy an original.
But as far as abusing the battery - its should not be any different than running your laptop plugged into the charger at all times right - how is that beyond normal usage?
After it charges up fully, lets see how long the battery lasts in this 'lite' mode.
Just an update. I'm not sure if was the recalibration suggested by tfn, or removing all the widgets, but i went from losing full charge in 2 hours to losing charge at a rate of 2% per hour under heavy usage!
This is crazy - i think those widgets are taking up way more battery than we think.