Develop Bugs

[Q] Battery drain application

Hi!
I'm looking for an application, that quickly kills my battery if it's low, so I can do a full charge to improve battery life.
Something, that I launch, I put my phone on the desk, have a tea meanwhile, and it's drained! Something, that turns on wifi, do some downloading, browsing, video playing, or whatever, and does it automatically without supervision. Does such app exists?

I'll second this, it'd be nice to have an app do this for me and maybe even give us some interesting stats from it?
Sent from my mind using telepathy

why would you want an application to destroy your battery?

Adevem said:
why would you want an application to destroy your battery?
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Apparently if you do a full discharge the battery life will be longer.

Soniboy84 said:
Apparently if you do a full discharge the battery life will be longer.
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not really, you should avoid deep discharges...

Byr0x said:
not really, you should avoid deep discharges...
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+1 If you had been reading around...you would know Lithium Ion batteries are designed to 'maximize' their efficiency within about two weeks of 'top up' charging. Cycle-charging is generally considered a less efficient method of charging. You will need to 'TopUp charge' this means charging as much and as often as possible. If your battery is at 89% for instance and you find yourself near a socket, plug your adapter in and charge it up to 100%. After a few days of doing this you will notice an improvement in the life of your battery when you are not able to charge.

Actually,,,
It is not matter of running your battery down to 0%.
It is ok to run it down till phone does to power on itself.
As you know battery is a single cell Li-Ion @ 3.7v
when it is fully charged it's peak voltage is 4.2v
By the time battery mah is drained down (galaxy s has 1500mah)
battery voltage should be around 3.2~3.4v range. this will depend on condition of the battery.
Battery should never go below 3.2v personally, 3.4v is my cut off.
If your battery voltage goes below 3.2v... it's time for a new battery as this kind of voltage will damage your battery, either it will leak or puff (battery will actually get bloated.
Phone has a voltage cut off so it will not over charge over 4.2v but if it does, it will likely start to smoke and catch fire.
I am sure anyone who is into electric Radio control knows all about these batteries.
Oh btw,,, long time storage voltage should be 3.8v
You'll be asking how do I know what voltage my battery is... I personallly don't know of any apps but GPS Status actually shows the temperature & voltage of your battery.

Soniboy84 said:
I'm looking for an application, that quickly kills my battery if it's low, so I can do a full charge to improve battery life.
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First, take into consideration the comments above regarding deep discharge of your battery...but, to answer your question, there's an app in the market place called 'Battery Refresh' which attempts to drain your battery quicker.

Well if it's all true above than its a good sign, and thanks for the info! I'm not an expert but in the old times I remember batteries had to discharged completely, maybe even if it's just a few times. Now somebody can also tell me why my battery is discharging when it's plugged in the socket with original charger? All I do is using the internet, and has. nimbuzz and a live wallpaper on. :S

You could probably enable the GPS/BT/WIFI ( connected to a router ) and run the interactive mode on Neocore benchmark.. that should enable most of the hardware components on the phone and stress the GPU/CPU.. probably would see a 25% battery drain for every 35-40mins.

I don't know what has changed with the batteries but as far as I know...
it is good to discharge new batteries 3~4 times down until phone does not power on.
Like I have said... it's about the voltage of the battery, not whether battery has any juice left in it or not.
These batteries have a protective circuitry so that it will not charge over 4.2v,
also as for discharge it is usually down to 3v but usually with a charger/discharger units that can control mah/volts/amps. With typical usage from the phone, it'll likely be discharged down to about 3.2`3.4v. Which is very safe.
You can do whatever you feel but I personally do this to every batteries I have for phone and every batteries I use with my radio controled cars.
For my RC cars, I have about 6 batteries ranging from 1cell to 3cell LiPo packs.
Each cell is 3.7volts.
But you don't have to force discharge and hurry the process.
Just use the phone normally and let it run down to nothing... than recharge to full peak.
Than again, choice is yours.

I'm looking for the same kind of applications. It's very useful for recalibrating your battery. Wipe the battery history then do a full cycle.
Sent from my GT-I9000 using XDA App

The old saying in RC Helicopters was that the difference between discharging 50% and 100% was the difference between getting 500 uses and 5 uses.
You should certainly avoid ever fully dischaging any lithium based battery.
Older nickel batteries (Ni-cd, Ni-MH) required full dischage cycles to get rid of memory the the metals pertained, lithium-ion and lithium-ion-polymer not only do not require this; but doing so will damage them.
And yes, the older ipods came with Nimh cells and they did reccomended full discharge cycles.
Im pretty sure the idea was to try not to let the voltage get below 3.5v/cell and never below 3.3. Dead flat is 3 or 2.85 which is when the battery simply cant produce any real current. The phone should have circuitry though to not let the voltage get above 4.25 or below ~3.5.. If the low battery warning comes on, set the brightness to dim, and stop any activities (unless its a phone call, its not THAT important but if youre playing games or watching a movie...) until yo can get to a charger.
By the way this being my first post (i meant to ages ago) Ill just mention that my galaxy S came with recovery mode and download mode Enabled, i got it just last month, Virgin network, Australia.

draining the battery fully was for the older battery types, new age batteries are not recommended to be drained fully

Thanks!
One more question:
I'm using my phone as a desktop replacement, because I don't have Internet at the moment. I'm using xda, dolphin browser and listening music. It's plugged into the mains and it's not charging. It says 49%, and stuck there. Is it possible I'm using too much battery?
Sent from my GT-I9000 using XDA App

Ok, this will be my last reply.
Fully draining or not is not the issue.
In RC, most modern electronic speed controllers have a built-in battery cut-off which will cut off power once it reaches certain voltage. Because OVER-draining battery without cut off can damage/kill/ or make it unable to hold voltage.
Also, once the battery voltage reach certain point (still within safe range) you will notice the motor being powered slow down. This would also be a recommended time to stop.
Cellular phones have built in safe cut off aswell. As I have said I have measured my battery after being full drained, voltage was around 3.55v or so. Which is very normal considering voltage of the battery is 3.7v only with peak charged voltage of 4.2.
Now, Someone mentioned that fully draining your battery repeatedly will dramatically reduce battery life.
Reducing life of the battery has more to do with the amount of AMP used to charge the battery. Faster charging is usually reduce battery life dramatically.
And without hobby grade chargers, you won't be able to control this charge rate.
Slow charge is better but charging at 1C rating is the normal. But charging at 1C means regardless of batteries mah rating, battery can be charged in about 60 minutes. As we all know, our phone batteries doesn't charge from zero to full in 60minutes, right? just like most of the portable devices it takes nearly 3~4hours to fully recharge. Last 20% usually takes longer because Amp provided to charge slowly lowers. That is why.
For example, if Galaxy S battery is 1500mah, than 1C charge rate is @ 1.5amp.
If battery is 3000Mah, 1C is 3.0Amps and so on.
So like I have said over and over before, drain your battery away if you have to by choice or not. Just use it up, I will bet you your battery will last longer than you keep your phone.

U should avoid draining ur battery to 0% (witch is not possible with ur phone. When it shows 0% the charge of the battery is at 10-15%). Li-ion batteries dont have a memory effect, so it would be usless discharching it completely anyhow. Best for sgs battery is charging it before it goes under 50% that will improve the lifetime of ur battery (not how long it lasts before u have to charge but how long it lasts before u have to go and buy a new one)
How do i know? Simply cause i had to learn that a few weeks ago for the job im learning.
@xxgg: yes ur right, it wont really damage the battery if u runn it till thr phone shows its empty. But using an app to drain battery as quick as possible will, since the app forces the battery to give out more Ampere than its built to give out
Sent from my GT-I9000 using Tapatalk

Does the official Sprint 2600mAh battery suffer from the "charging bug"

So most people are familiar with the seeming "bug" that if you slap in a huge extended battery (Seido 3600mAh one comes to mind) if you are charging via USB it would only charge up to the 50-60% mark
I'm seriously thinking about getting a sprint extended battery - but does this bigger battery suffer from the same "problem"
I know this one is Lithium Polymoer instead of Li Ion... does that change anything?
All I know is that I refuse to take my battery out every 24 or 36 hours to "wall charge" it directly.
Thanks in advance for you input!
J

Mine has been charging perfectly... have had it two days, and it's been great

thanks for the quick reply -- I'll try and pick one up here in the next few days. I'm sure I can take it back if the huge back or if i had any charging issues
would be nice to go 24 hours and not have to worry about the battery at all

I have loved it... i have been able to actually use my phone.... and i even had them credit me $20 for buying the battery

You could have posted in the thread in this section, just a few posts down. But to answer your question, I have not had any issues yet. I know it drops by 3-4% a little quick (30 minutes - 1 hour) but that is the only major drop I see.

accelerus said:
So most people are familiar with the seeming "bug" that if you slap in a huge extended battery (Seido 3600mAh one comes to mind) if you are charging via USB it would only charge up to the 50-60% mark
I'm seriously thinking about getting a sprint extended battery - but does this bigger battery suffer from the same "problem"
I know this one is Lithium Polymoer instead of Li Ion... does that change anything?
All I know is that I refuse to take my battery out every 24 or 36 hours to "wall charge" it directly.
Thanks in advance for you input!
J
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Li-Po is actually not going to change anything except that you can put more cells in the same size battery, therefore increasing the length between charges.

Most of the LI-Ion batteries used in phones are LI-po now adays anyways. The orignial evo batteries are. and most of the extended batteries are as well.

skydeaner said:
Most of the LI-Ion batteries used in phones are LI-po now adays anyways. The orignial evo batteries are. and most of the extended batteries are as well.
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Actually, they haven't used Li-Ion batteries in most consumer electronics for several years but the name has become a generic descriptor for an entire family of cells which include LiPos.
The complete name for LiPo is lithium-ion polymer and they differ from lithium-ion cells in several ways including:
The electrolyte in a Li-Ion cell is a gel (liquid) while the electrolyte in a LiPo cell is a solid polymer.
The layers in a Li-Ion cell need to be tightly compressed so they're typically rolled and housed in a tight-fitting cylindrical case, but the layers in a LiPo cell don't require that compression which is why they can be manufactured in that handy flat form factor so easily.
The nominal working voltage of Li-Ion cells is 3.6V and it's 3.7V for LiPo cells.
LiPo cells have a higher energy density (capacity/weight) than Li-Ion cells.
LiPo cells can be charged and discharged at significantly higher rates than Li-Ion cells.
The bottom line is any small consumer electronics battery pack which is flat and square and is marked as 3.7V (or a multiple of that number for multi-cell series-wired packs) is a LiPo pack regardless of what it says on the pack or in the literature.
Pete

I have owned both batteries and I'm quite familiar with the bug OP is referring to. I can say unequivocally this battery has the same issues the 3500mah Seidio battery does. If you charge this battery, while the phone is on, to max and then unplug, you will watch your charge drop from full to in the 60s in the first hour or two. The drain then tapers off significantly at that point.
I haven't really had an opportunity to put this one through it's paces yet and it may stabilize over time. I'm thinking that this new one might provide the same amount of battery life as the Seidio 3500mah one due to this bug.
EDIT: See my post on the following page. The battery/system seems to have calibrated itself.

You mean to tell me that this battery was a waste of money for me? If so, let me know. It will go back tomorrow

Strange, I don't have this issue at all and I've had the battery for almost a week. It tends to drain quickly to 95% then level out.
Sent from my HTC Evo 4G using XDA App.

SpezXVII said:
Strange, I don't have this issue at all and I've had the battery for almost a week. It tends to drain quickly to 95% then level out.
Sent from my HTC Evo 4G using XDA App.
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My second charge drained to about 60% just like the first. I just pulled it off the charger for the third time early this morning and I am not noticing the drain anymore. I'm thinking it must have calibrated itself.
I've been off the charger for 1 hour 50 mins and I still have 93% remaining!
This is much more like the stock battery. If it continues to act this way, this battery beats the Seidio one by a mile. It's been a couple months since I've used the EVO. Has something been changed in the CyanogenMod Supersonic kernel to support extended batteries?

Shouldn't it be draining slower than stock battery?

I ahve the Seidio battery and I have never seen the battery drop to 60 percent or anything else like what people are saying. I am on CM 6 RC1 but even with any of the other dozen ROMs I have never had an issue. If my battery dropped to 60 percent a short time after unplugging it I would have sent it back the same day.

I charged my battery from 5% to full last night via usb charge. I pulled it this morning at 7:00 and it dropped to 93% quick mainly because it was on the charger well after it had reached 100%. Since 7 am Its dropped as it should. Im currently at 71% 8 1/2 hours later. So I wouldnt say all of these batteries have the 3500 seidio issue. What rom is everyone whos having the issue running?

They may have fixed something in the kernel recently to avoid this. Look up the old threads about the 3500mah battery. The battery calibration issues were universal.
Sent from my PC36100 using XDA App

looneylu said:
Shouldn't it be draining slower than stock battery?
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The EVO stops charging at 100% and will not charge until it drains back to about 90%. The phone will continue to show "full" until you pull the plug. It will then show the true charge level.
Sent from my PC36100 using XDA App

illogic6 said:
The EVO stops charging at 100% and will not charge until it drains back to about 90%. The phone will continue to show "full" until you pull the plug. It will then show the true charge level.
Sent from my PC36100 using XDA App
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Thanks for clearing that up. I didn't read your previous post, I guess

So do you guys suggest to get this instead of the Seidio ?

Someone take a logcat dump and look at the battery parameters of charging/not charging and you'll know if they've fixed the issue or not.
The meter will self adjust to the 1500Mah based on voltage and you think you'll get a full charge but you won't. Slapping it into an external battery charger after "fully" charging it thru the evo will open your eyes to the issue.
Here's hoping, now there's a sprint official "OEM" class extended battery that they'll get HTC to compile in additional battery drivers other than just the 1500mah one it shipped with.
Sorry folks, if you can't charge it externally, you're not going to get the FULL capability of the battery. There are ways to tricking it into taking more. Charge it fully with phone on, unplug, power it off, charge some more, unplug power on, charge more, etc.
This will continue to add just a little bit more to help bring it up, but you'll never get it full unless you can charge externally or HTC adds devices.
You can pull the source code yourself and confirm this info. You can also confirm the issue still exists with an external charger.

[Q] Battery Charging ?

http://www.amazon.com/Battery-Charg...UM12/ref=sr_1_5?ie=UTF8&qid=1296229895&sr=8-5
Alright, I picked up this setup a few months ago and I really enjoy the battery and the charger.. Well, I really don't like taking the battery out every day. So, my question is why does the phone stop charging at a certain point? Maybe I am not understanding when to clean the battery stats..
When the battery charges off the wall charger, it last way longer.. But when it charges over night through the phone, it doesn't last worth of a crap..
Can there be a change somewhere in the code, to let the battery charge longer?

your thinking of a sbc kernel or "trickle charging" by using one of these kernels you'll get what your aiming for although there are many reports of batterys frying or even melting. Ive never experienced any problems before though.

There are a number of available kernels that 'hack' the method by which the device charges. Use at your own risk, as there are potential implications for the life (and stability) of the battery.
Some relevant links:
Your battery gauge is lying to you (and it's not such a bad thing)
My thoughts on Over-charging Batteries
[KERNEL][AOSP][TESTING] Superior Battery Charging
If you search for "Superior Batter Charging" or "Super Battery Charging" kernels, you will find a number of them, including a number of disagreements regarding their implementation.
Edited to add more links:
BATTERY EMITTING "SMOKE" (Trickle-Charge Kernel most likely responsible?!) **PICTURE*
Will "trickle-charge" kernels end up damaging our phones? *UPDATE: 8 CASUALTIES!*

So does the wall charger trickle charge the battery like the hacked kernels?
Will the wall charger damage the battery like the hacked battery kernels, or does the wall charger have intelligence enough not to overcharge it?

There are countless different external chargers on the market, so there's no 100% accurate answer to that. Most external chargers are applying a safe charge in a similar manner as if you charged the phone directly while it was turned off. I don't know specifically of a dangerously designed charger out there, but I'm simply acknowledging that one could possibly be out there.
In the specific case of the linked product above on Amazon, the product description says,
Built-in overcharge protection
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In fact, it says that is using a charge current of 350mA on the battery. That's very gentle, but also why a number of the reviews say that it takes longer to charge with it than charging the phone directly.

userjf said:
So does the wall charger trickle charge the battery like the hacked kernels?
Will the wall charger damage the battery like the hacked battery kernels, or does the wall charger have intelligence enough not to overcharge it?
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The wall charger is set to stop at a certain point. To all I know it doesn't overcharge. I know my battery lasts longer.

4x4r8d said:
The wall charger is set to stop at a certain point. To all I know it doesn't overcharge. I know my battery lasts longer.
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Click to collapse
Sounds like a similar or identical charge when you turn off your phone and just plug it in.
It charges it more but will also shorten your battery life in the long run, though I'd assume it wouldn't be very dramatic. If you kept tabs on it you'd probably notice a significant difference in a couple months on which battery holds a charge better (phone on charged vs charger charged)
I found a good combination for me was to get the HTC extended battery and use a Kernel that is less power hungry (such as chad's incredikernel).
With a silicone case around the extended battery, it really is a nice setup.
But whatever works for you, the battery swapping would drive me insane though.

the truth about HTC extended batteries which claim same size , higher capacity

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
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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!
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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.
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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.
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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 .
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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.
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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).
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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

[Q] why does it take too long to charge our HOX

it takes around 3.5 hours to charge the one x from 0 to 100 % and it takes the galaxy s3 around 2 hours,,,knowing that the s3
has a bigger battery (2100 mah) and the one x has a (1800 mah) and they both use 1 amp charger,, why does it then take the hox much longer to charge??

yes i require htc to explain, because physics says 1800mAh/1000mA = 1.8hours which i didnt see so far. I'm assuming its a calibration problem and we are all overcharging our batteries.

That's not what physics says.
Only the first hour or so is constant current, after that it becomes constant voltage and the charge current goes down.
3 hours is.about normal charge time for a lithium ion battery, faster than that shortens its life.

Yes you are right the voltage difference greatly drops esp when battery reaches 90%, but i still feel my HOX takes much longer than all my other phones to charge.

HOX's battery is Li-ion Polymer. Other phones use Lithium Ion battery.
Fast charge is not so good and over charged is seriously problem with Li-ion Polymer. So, to protect your battery, HTC do not use fast charge method as well as they control the charging especially low-down the charging current when the battery reach 90%. If you use battery monitor widget to test, you will see that you could charge the battery overnight without any problem, the current some time being zero.
Don't worry man, it is normal and it is the best way for you phone.

snipervn said:
HOX's battery is Li-ion Polymer. Other phones use Lithium Ion battery.
Fast charge is not so good and over charged is seriously problem with Li-ion Polymer. So, to protect your battery, HTC do not use fast charge method as well as they control the charging especially low-down the charging current when the battery reach 90%. If you use battery monitor widget to test, you will see that you could charge the battery overnight without any problem, the current some time being zero.
Don't worry man, it is normal and it is the best way for you phone.
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Nah, Lithium Ion and Lithium Ion Polymer are about the same. I had LiPo battery in my Nokia 7110 from 1999 (BPS-1). They're hardly new.

BenPope said:
Nah, Lithium Ion and Lithium Ion Polymer are about the same. I had LiPo battery in my Nokia 7110 from 1999 (BPS-1). They're hardly new.
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check this pls:
http://forum.xda-developers.com/showthread.php?t=1667117
I am RC Player and I have some experiences with Li-Ion and Li-Po, it is quite different. I could charge the Li-Ion with normal charger (same as Ni-Cd or Ni-MH) but for the Li-po, I have to use computerize charger (or at least charger with balance unit) to control the current, time....

snipervn said:
check this pls:
http://forum.xda-developers.com/showthread.php?t=1667117
I am RC Player and I have some experiences with Li-Ion and Li-Po, it is quite different. I could charge the Li-Ion with normal charger (same as Ni-Cd or Ni-MH) but for the Li-po, I have to use computerize charger (or at least charger with balance unit) to control the current, time....
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I did contribute to thread you posted.
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
"Charging Li‑ion polymer, also referred as Li-polymer, is very similar to a regular lithium-ion battery and no changes in algorithm are necessary."
I don't think you should charge Li ion battery with NiCd/NiMH charger, it'll damage them.

So there is no clear answer for this??
Sent from my HTC One X using xda premium

tell4ever said:
So there is no clear answer for this??
Sent from my HTC One X using xda premium
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The clear answer is that Samsung have traded battery longevity against charge time. This makes sense, the battery is user replaceable.
Normal Li Ion charge times are around 3 hours without significantly reducing battery life over time. If the battery is in use, expect it to take a little longer.