I want to buy a bigger battery for my phone (in terms of capacity). But I was struck with a couple of questions whose answers I couldn't find anywhere.
If anyone have replaced their stock battery with a higher capacity one, please help me.
:fingers-crossed:
These are my doubts;
1) Voltage - My phone's stock battery is rated at 3.9v. What will happen if I replace it with a 3.7v?
I now a bigger voltage can damage the phone but no one has ever said anything about using a lower voltage rated one.
2. Capacity and Calibration - Does any value in the system files need to be changed? Or a simple calibration would do to make the percentage right?
Thank you.
EDIT: Please understand that I've never tried this before. That's why I am unsure.
Bump, anyone?
Adithya FRK said:
I want to buy a bigger battery for my phone (in terms of capacity). But I was struck with a couple of questions whose answers I couldn't find anywhere.
If anyone have replaced their stock battery with a higher capacity one, please help me.
:fingers-crossed:
These are my doubts;
Click to expand...
Click to collapse
Welcome to the xda forums, please, don't bump since it is not appreciated anywhere and might even lead to less help (some people won't even open threads that have more than 0 replies).
Adithya FRK said:
1) Voltage - My phone's stock battery is rated at 3.9v. What will happen if I replace it with a 3.7v?
I now a bigger voltage can damage the phone but no one has ever said anything about using a lower voltage rated one.
Click to expand...
Click to collapse
Depends, I don't think a .2 lower voltage is going to make a difference, but since I do my physical work in a computer repairing shop I know that for charging a laptop this wouldn't matter since it is such a low difference.
Adithya FRK said:
2. Capacity and Calibration - Does any value in the system files need to be changed? Or a simple calibration would do to make the percentage right?
Thank you.
EDIT: Please understand that I've never tried this before. That's why I am unsure.
Click to expand...
Click to collapse
[/quote]
What you have to do is fully discharge the phone (using the new battery) and charge it back up without starting it and then fully discharge from 100% and charge it back up. This will get the phone (and its charger circuit) some metadata about how long it took to charge and other various tasks performed by the system.
Good luck!
RAZERZDAHACKER said:
Welcome to the xda forums, please, don't bump since it is not appreciated anywhere and might even lead to less help (some people won't even open threads that have more than 0 replies).
Depends, I don't think a .2 lower voltage is going to make a difference, but since I do my physical work in a computer repairing shop I know that for charging a laptop this wouldn't matter since it is such a low difference.
Click to expand...
Click to collapse
What you have to do is fully discharge the phone (using the new battery) and charge it back up without starting it and then fully discharge from 100% and charge it back up. This will get the phone (and its charger circuit) some metadata about how long it took to charge and other various tasks performed by the system.
Good luck![/QUOTE]
Thanks, and sorry about the bump.
A low quality replacement battery was enough to fry my xperia z1's charging ic in long term, let alone a different voltage battery. As stated before me, logically 0.2 v difference shouldn't make much difference, but i highly recommend against it because charging ic *may* be specifically designed for 3.9v and *may* overcharge your new battery. But nothings for sure you and should try and see it for yourself, and maybe keep us updated too
P.S: Whats the make and model of your phone? Just curious.
Konur said:
A low quality replacement battery was enough to fry my xperia z1's charging ic in long term, let alone a different voltage battery. As stated before me, logically 0.2 v difference shouldn't make much difference, but i highly recommend against it because charging ic *may* be specifically designed for 3.9v and *may* overcharge your new battery. But nothings for sure you and should try and see it for yourself, and maybe keep us updated too
P.S: Whats the make and model of your phone? Just curious.
Click to expand...
Click to collapse
It's from a local company here: Intex Cloud Tread. (One of those MT6591 phones)
The charging IC can fry the battery, but isn't charging voltage supposed to be higher than the battery voltage?
I'll check the charging voltage for my stock 3.9 v battery with Ampere and report it later here. Thanks. :fingers-crossed:
Related
Hey guys,
I'm in a very unfortunate but serious situation here.
My X10 outright refuses to charge via the power point ( please see: http://forum.xda-developers.com/showthread.php?t=1054455 ). And, now, I'm using the EWJet ROM with Zdzihu's custom kernel. My battery is at 0% (charging is a pain, really slow - also, I don't think it's calibrated properly), and, since I'm using this kernel, I cannot off-line charge!
So, I'm looking for an alternative how to charge my battery. Would cutting my cable and matching the positive and active wire's to the battery's positive and negative terminal's be sufficient? If so, how long should I keep it there for at least some charge to get my battery up enough to start my device?
Thanks guys,
Regards,
Mayazcherquoi.
I wouldn't rly suggest cutting the wires since the x10 has internal circuitry that protects the battery, the battery itself should have circuitry too if memory serves right. You could do it if you know what your doing but Li-On batteries tend to be explosive if you don't know what you're doing. If you push for this method I'd suggest having a voltmeter close to check the battery and charger voltage before starting.
You could try finding a wireless charge pad compatible for the x10 if repairing the phone isn't possible. Since you mentioned cutting the cable and matching the wire and such I figure you're handy. So why not try replacing the micro usb connector? I mean its already busted anyway.
EDIT: Charge pad like this http://store.androidandme.com/sony-ericsson-xperia-x10-powermat.htm , hopefully you can find something cheaper :S
kindred7 said:
I wouldn't rly suggest cutting the wires since the x10 has internal circuitry that protects the battery, the battery itself should have circuitry too if memory serves right. You could do it if you know what your doing but Li-On batteries tend to be explosive if you don't know what you're doing. If you push for this method I'd suggest having a voltmeter close to check the battery and charger voltage before starting.
You could try finding a wireless charge pad compatible for the x10 if repairing the phone isn't possible. Since you mentioned cutting the cable and matching the wire and such I figure you're handy. So why not try replacing the micro usb connector? I mean its already busted anyway.
Click to expand...
Click to collapse
Thing is, I don't really have the parts :-/ And I kind of need this up and running by tonight I cut the wires from an old Motorola phone charger (unable to determine which is positive and negative) which details at OUTPUT: 5.0V - 550mA, and practising on an old O2 Graphite Lithium Ion battery (to no avail ) which outputs at 3.7V - 1100mAh.
So far, no explosions. Is this okay to practice on?
Thank you.
Use a voltemeter to determine the polarity. The old phone battery circuitry may be refusing to charge since the battery may have dipped below the minimum allowed voltage to prevent any danger. Since you've gone this far I suppose it won't hurt to see if you can get it going, check the polarity first of the charger though.
Explosions only happen at the instant of trying to charge a dead li-ion without circuitry or trickle charge and also in the event of excessive current which would be heat related.
kindred7 said:
Use a voltemeter to determine the polarity. The old phone battery circuitry may be refusing to charge since the battery may have dipped below the minimum allowed voltage to prevent any danger. Since you've gone this far I suppose it won't hurt to see if you can get it going, check the polarity first of the charger though.
Click to expand...
Click to collapse
Thing is, I don't have a voltmeter
Is there absolutely no visual difference between the wires? Post A picture.
Hmm... I'd guess this question will return a no as an answer but, do you have an LED handy that you could use in series with a resistor as a visual aid?
kindred7 said:
Is there absolutely no visual difference between the wires? Post A picture.
Hmm... I'd guess this question will return a no as an answer but, do you have an LED handy that you could use in series with a resistor as a visual aid?
Click to expand...
Click to collapse
Unfortunately, I don't have an LED, but I have a motor. Depending on how I connect it, it will spin either clockwise or counter-clockwise (I think). How could I determine the positive and negative from that?
And no, the wires of the Motorola Charger were split, and both coloured black. Inside the black insulation, however, is just the standard copper colour.
This is the best illustration I could find: http://mohitjoshi999.files.wordpress.com/2009/08/080609_0658_dcmotorinte2.png
Clockwise has the positive at the top of the motor, assuming the rotor faces out (The page didnt specify but I would think that would make more sense).
Hope that helps.
EDIT: By rotor I mean the shaft.
kindred7 said:
This is the best illustration I could find: http://mohitjoshi999.files.wordpress.com/2009/08/080609_0658_dcmotorinte2.png
Clockwise has the positive at the top of the motor, assuming the rotor faces out (The page didnt specify but I would think that would make more sense).
Hope that helps.
EDIT: By rotor I mean the shaft.
Click to expand...
Click to collapse
I don't know, I'm kind of doubting it changes sides now since it's too fast.
By that diagram, I think I've found which is which. Still quite uncertain though.
If it's a typical dc motor it will change as you alter polarity.
If you have paper clips you can wrap two on the rotor, if they are different colour it would be even better. That way you could decern what direction it's turning.
kindred7 said:
If it's a typical dc motor it will change as you alter polarity.
If you have paper clips you can wrap two on the rotor, if they are different colour it would be even better. That way you could decern what direction it's turning.
Click to expand...
Click to collapse
Good idea.
Okay, I think I've got it. I've marked the negative (black wire) with some sticky tape.
What now?
Also, thank you so much
Since you have the polarity figured you you could go ahead and try it again on the old battery just to be sure if it can give you any indication of charging. If not try it on the xperia battery. Id suggest monitoring the temperature of the battery while charging by sense of touch, if it feels hot pull it off and let it cool before continuing.
The xperia battery is 5.4 Whr and the power going into the battery is 2.75W, so it should take 1.96 hrs to fully charge, assuming max current. So about 59 minutes will give you 50%.
EDIT: I used the xperia charger power instead of the one you're using
best thing to do is charge it in the car. rev the engine or get it up to 180km/h and that should cause it to start charging and since you have the custom kernel, it will turn on and continue charging. I hope it works, I had the same problem
Sent from my X10i using XDA Premium App
Hello, is there a way to have the charger connected but only use it as an external power source like on laptops without charging the battery? I use my tablet often near the charger and don't want to start the charging process 5 times a day.
Thanks!
hugo11sk said:
Hello, is there a way to have the charger connected but only use it as an external power source like on laptops without charging the battery? I use my tablet often near the charger and don't want to start the charging process 5 times a day.
Thanks!
Click to expand...
Click to collapse
I don't know, but I'm curious why you want this? Did they put a Nickel Cadmium battery in your GT10?
I want this for the same reason as on lenovo laptops. With this feature you can save some charging cycles and the battery would last 1+ years. On my dell with the charging plan same as my p7500 the battery was dead (less than half capacity) after 10 months. And I do not necessarily need my battery charged to 100% all the time..
hugo11sk said:
I want this for the same reason as on lenovo laptops. With this feature you can save some charging cycles and the battery would last 1+ years. On my dell with the charging plan same as my p7500 the battery was dead (less than half capacity) after 10 months. And I do not necessarily need my battery charged to 100% all the time..
Click to expand...
Click to collapse
So they did put a Nickel Cadmium battery in your tablet? Those sneaky bastards! I must have gotten lucky--mine has a Lithium ion battery.
No it's Li-Ion, don't really understand why you think that Li-Ion is not impacted at all...
hugo11sk said:
No it's Li-Ion, don't really understand why you think that Li-Ion is not impacted at all...
Click to expand...
Click to collapse
Sorry, I'm just having a bit of fun messing with you, but you need to update your understanding of rechargeable batteries.
Ok, no prob I realized that you don't know the answer, can you at least share your opinion why this looks like an unnecessary thing to you and prove it? (link)
hugo11sk said:
Ok, no prob I realized that you don't know the answer, can you at least share your opinion why this looks like an unnecessary thing to you and prove it? (link)
Click to expand...
Click to collapse
I think that slack04 is refering to the properties of Li-Ion batteries. These are very different from the older technologies like NiCd or NiMH.
In short ... Li-Ion batteries realy love to be charged all the time. Keeping them attached to a charger all the time or multiple small periods of time will not hurt them.
There are only a few things that will realy hurt Li-Ion batteries:
- time : Li-Ion batteries degrade over time, even if they are not being used. You can expect a Li-Ion battery to work OK for about 2 years. So, never buy second hand Li-Ion batteries or batteries that have been stored in a shop for some time.
- heat : do not keep a Li-Ion battery in a hot place (like your car in the sun) It will severely reduce its usefull lifetime.
- undercharging : If you let a Li-Ion deplete to a too low level, it can be damaged beyond repair. But, our tab will turn itself off way before that low level.
So, just let it charge itself as much as it can.
This is not true for the older technologies. I think that's why lots of people are still thinking that very controlled charging cycles will prolongue the lifetme of their batteries.
Cool, so we can use tab connected to sector all long as we want with ion battery! ?
hugo11sk said:
Ok, no prob I realized that you don't know the answer, can you at least share your opinion why this looks like an unnecessary thing to you and prove it? (link)
Click to expand...
Click to collapse
Ha! Here's some proof for you, in a link no less!
slack04 said:
Ha! Here's some proof for you, in a link no less!
Click to expand...
Click to collapse
I can recommend that link too
But if you want some more, you can visit the 'battery university'. E.g. this page:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Thanks a lot for the link, it's interesting reading that the best would be keeping the battery at around 40% charge.
BTW is it a Li-po or Li-ion battery in galaxy tab 10.1?
hugo11sk said:
Thanks a lot for the link, it's interesting reading that the best would be keeping the battery at around 40% charge.
BTW is it a Li-po or Li-ion battery in galaxy tab 10.1?
Click to expand...
Click to collapse
Read it again, and don't post stuff that will confuse new folks. Here's a quote from the article:
"The smaller the depth of discharge, the longer the battery will last. If at all possible, avoid frequent full discharges and charge more often between uses. If full discharges cannot be avoided, try utilizing a larger battery. Partial discharge on Li-ion is fine; there is no memory and the battery does not need periodic full discharge cycles other than to calibrate the fuel gauge on a smart battery."
slack04 > I've read the article very well... and I feel that your posts don't add that much value to this thread. maybe you could read it again as well.
Please check the table from wiffeltje's link. It clearly states that at 25C at 40% charge the yearly loss in capacity is 4%, and at 25C 100% charge level it's 20%.
hugo11sk said:
slack04 > I've read the article very well... and I feel that your posts don't add that much value to this thread. maybe you could read it again as well.
Please check the table from wiffeltje's link. It clearly states that at 25C at 40% charge the yearly loss in capacity is 4%, and at 25C 100% charge level it's 20%.
Click to expand...
Click to collapse
I don't want to make it even more difficult, but the table you refering too deals with 'storage'. That's a good table to follow if you need to store your device for a couple of months without use. Then it's best to have a 40% charge.
For normal use the simple rule is : keep it connected to the charger whenever possible.
wiffeltje said:
I don't want to make it even more difficult, but the table you refering too deals with 'storage'. That's a good table to follow if you need to store your device for a couple of months without use. Then it's best to have a 40% charge.
For normal use the simple rule is : keep it connected to the charger whenever possible.
Click to expand...
Click to collapse
I considered posting this but decided that the OP was a bit thick.
i just got this phone a few days ago. i love it. nothing wrong with it.
super fast and everything. im on 2.3.6. no issues. my battery lasts 12 hours easy. and actually up to 26 hours so far.
i dont even feel the need for a custom rom. at least not for now.
but one thing that makes me mad is how slow the phone charges, anyone know why this is ? it's kinda frustrating lol
any way to change this ?
also....i kinda hate that there is no camera button on the actual phone. oh well.
*Edited*
well i dont like to charge unless my battery is on red. so that conflicts, its not always red when i go to sleep. but thanks i'll check it out.
and i dont want to unlock to camera. it's easier to take photos with a button is what im saying
mrljlamon said:
well i dont like to charge unless my battery is on red. so that conflicts, its not always red when i go to sleep. but thanks i'll check it out.
and i dont want to unlock to camera. it's easier to take photos with a button is what im saying
Click to expand...
Click to collapse
If I remember correctly waiting till the battery is completely depleted is not a good thing for our batteries.
i never said completely depleted though.
and yea ive read so many reviews to not do that, and reviews that say you should... and reviews to charge it this much and that much and blah blah. may be a new phone, but none of this is new to me.
Charge current is hardware limited from what I've read. Or atleast for the time being. If your using the phone while charging it'll be significantly slower. Also using wallplug makes a difference. If you've got stuff running while charging try throttling down the CPU while charging.
Other than that I think our phone is limited to 650mah to charge. So 1650/650 is about 2.5 hours with perfect efficiency. Now take into account the power being drawn and how the chargers for li batteries work, that's about 3-4 hrs to be expected.
And don't run li batteries all the way down on a regular basis, its not good. I'm not positive on li ion batteries, but with lipo you generally want to use about %80 of rated capacity to prolong life and power of the cell.
400 mA on USB, 650 on a wall charger, CPU/screen usage counts against these limits - no way to change this
Forgot where I read it. Could be wrong too.
Slow charging for this phone was samsungs way of keeping our phones battery in shape. Hopefully prolonging the life of it. I noticed my 3GS lose about 20% of its full capacity in a couple years. Only time will tell?
Siyah has an option to upping the charging mA I believe.
Sent from my AT&T cellular device.
all useful responses and all make sense. thank you guys.
i dont use it when it charges and yea it does take about 4 hours to charge.
coming from a crappy xperia x10 which took about 2 hours to charge from 0 to 100
but this phone is 10 times better even without a custom rom so i can deal.
thank you guys for ur knowledge.
jdbeitz said:
Siyah has an option to upping the charging mA I believe.
Sent from my AT&T cellular device.
Click to expand...
Click to collapse
He removed it because it turned out not to work. (If it's still there I'm surprised - it should be completely gone.)
It turns out the I9100 has the same limitation as the I777 - charging is handled not by the MAX8997, but by a MAX8922.
Entropy512 said:
He removed it because it turned out not to work. (If it's still there I'm surprised - it should be completely gone.)
It turns out the I9100 has the same limitation as the I777 - charging is handled not by the MAX8997, but by a MAX8922.
Click to expand...
Click to collapse
Its still there. I have a 750mA charger and iit SEEMS to help but I don't know how to check it
Sent from my AT&T cellular device.
CurrentWidget
he removed the high ma charge back to defaults. you can still change them in voltage control but it wont do a damn thing. as entropy said 650 wall 450 misc.
My remix:
EM EYE YOU EYE
SIYAH nara to the rest, I'm rollin with the best.
SGS2 I777
Entropy512 said:
CurrentWidget
Click to expand...
Click to collapse
Does that widget only show charging current?
According to currentwidget i am charging at 1850+ mA. So, that cant be right. I am not using any voltage controller.
thejanitor86 said:
According to currentwidget i am charging at 1850+ mA. So, that cant be right. I am not using any voltage controller.
Click to expand...
Click to collapse
Enjoy the fireworks.
thejanitor86 said:
According to currentwidget i am charging at 1850+ mA. So, that cant be right. I am not using any voltage controller.
Click to expand...
Click to collapse
Hmmm when I used to run a different widget it would report that, but not with current widget. However I'm on a different ROM now, what ROM you on?
I'm currently on the latest ICScrewed
Sent from my SGH-I777 using XDA App
thejanitor86 said:
According to currentwidget i am charging at 1850+ mA. So, that cant be right. I am not using any voltage controller.
Click to expand...
Click to collapse
If you are on Entropy's DD kernel you should divide that number by 2.85
Battery charge current monitoring (CurrentWidget) support - only reports charge current and not discharge, and reports a value 2.85 times the actual current. Use CurrentWidget's "operation on value" to divide by 2.85.
Click to expand...
Click to collapse
i bought a charger online it looks very much like the original bundled one. However i have a couple of questions
1. is there a way i can check the output quality using the phone itself and not a multimeter . Like variation in voltage/current?
2. using a multimeter do i have to tear apart the charger to check the output quality.
any inputs are welcome
sarfaraz1989 said:
i bought a charger online it looks very much like the original bundled one. However i have a couple of questions
1. is there a way i can check the output quality using the phone itself and not a multimeter . Like variation in voltage/current?
2. using a multimeter do i have to tear apart the charger to check the output quality.
any inputs are welcome
Click to expand...
Click to collapse
Depends on what you mean by 'output quality'. If you mean the ripple (noise), especially in response to load changes, then no, you can't without oscilloscope and dummy load.
If you do not have this measuring equipment, then I would use these two simple tests:
does the empty phone fully charge within 2 - 3 hours ?
does the touchscreen stay responsive while charging ?
If you can answer both of these questions with yes then one could assume the charger is of good quality.
thanx for an informative reply man. the thing is i use usb charger usually battery is 8 months old . i dont know how long it will charger to recharge. giving these conditions u still think it will take 2-3 hours to charge ? yes the touchscreen stays remains but i think there is the usual "noise " that makes minor error in touchscreen smoothness. do u understand wat i am trying to tell u.
sarfaraz1989 said:
thanx for an informative reply man. the thing is i use usb charger usually battery is 8 months old . i dont know how long it will charger to recharge. giving these conditions u still think it will take 2-3 hours to charge ? yes the touchscreen stays remains but i think there is the usual "noise " that makes minor error in touchscreen smoothness. do u understand wat i am trying to tell u.
Click to expand...
Click to collapse
the minor 'touch screen smoothness' issue will be there while charging thro wall charger for sure and also the charging time do wary depending on how old the battery is
sarfaraz1989 said:
thanx for an informative reply man. the thing is i use usb charger usually battery is 8 months old . i dont know how long it will charger to recharge. giving these conditions u still think it will take 2-3 hours to charge ?
Click to expand...
Click to collapse
If the battery is fine (and it should still be after 8 months) charging of an empty battery should happen within 2 - 3 hours.
sarfaraz1989 said:
yes the touchscreen stays remains but i think there is the usual "noise " that makes minor error in touchscreen smoothness. do u understand wat i am trying to tell u.
Click to expand...
Click to collapse
If you are able to normally operate your phone while charging, then this is ok.
ok. i will do that and get back to u guys. just one thing. wat info can i get from phone regarding charging current /voltage ? also the original capacity was 1650 mAh . can i recalibrate and get the "new" mAh is there anything like this ? i calibrate my laptop' battery every two months and get its capacity in terms of mW. anything similar to phones ?
sarfaraz1989 said:
ok. i will do that and get back to u guys. just one thing. wat info can i get from phone regarding charging current /voltage ? also the original capacity was 1650 mAh . can i recalibrate and get the "new" mAh is there anything like this ? i calibrate my laptop' battery every two months and get its capacity in terms of mW. anything similar to phones ?
Click to expand...
Click to collapse
Search the play store for Battery Monitor Widget. It can give you some more information about your battery, charging, discharging etc.
Hi,
I've received Desire X from friend who couldn't start it.
I've revived the battery (before buying new battery if thats the problem) using 9V battery.
now its alive, however the second I plug it in the flashlight automatically starts.
I've tried with other HTC battery that fits and same voltage and still flash turns on, even without powering the phone.
Any Idea ?
Seriously, you used 9V battery on device which use 3,8V ?
Are you mad!?
Klapo said:
Seriously, you used 9V battery on device which use 3,8V ?
Are you mad!?
Click to expand...
Click to collapse
Mad? No.
However I am electronics engineer.
And the battery now works, I'm sure it's not for long.
To the point, what may cause the flash to be always on?
Chura said:
Mad? No.
However I am electronics engineer.
And the battery now works, I'm sure it's not for long.
To the point, what may cause the flash to be always on?
Click to expand...
Click to collapse
Because you dont use the right battery
Oh sorry but that make me laugh so hard...You say u are engineer but...Agreed with @GtrCraft.Wrong battery can do some strange problems.
I sort of agree with OP. You probably shouldn't have recharged the battery with a 9V, another HTC device should be enough. You might have shorted something inside the phone, so now it's ****ed up.
Sent either from my potato phone, or my Nexus 7.
Stereo8 said:
I sort of agree with OP. You probably shouldn't have recharged the battery with a 9V, another HTC device should be enough. You might have shorted something inside the phone, so now it's ****ed up.
Sent either from my potato phone, or my Nexus 7.
Click to expand...
Click to collapse
The battery labeled 3.7v, while the 9v revive got the battery to 3.32v only.
I don't agree with possible damage to the phone since lower voltage can't do that.
However it is possible that due to lower input level it cause the phone to mis-behave on this specific battery.
Thanks, I'll try to find new one.
Here is a story about overvoltage a battery.
You can try to revive a dead battery by overvoltage it and you can obtain some result for some short time. I tried this many times with batteries/accumulators of different voltages but you must understand this:
1. NEVER apply this with battery in circuit or mounted on device, battery must be unconnected,
2. This method is the begining of the end of batt/acc, after one or two revivals you can throw it away,
3. You can try this ONLY if you must test a device with a DEFECTIVE or old battery. After a short impuls of overvoltage sometimes the battery can deliver enough power to test some things.
I understand, and exactly what I did.
I've verified the phone starts and now I've ordered new battery.