Develop Bugs

Battery calibration app

Could someone please develop a good app that would enable the battery to be drained as much as possible and to charge slower so we could all properly calibrate our batteries?

Do we really need this since it's a Li-ion battery? I know Ni-Mh and Ni-Cad has memory effect, but not on the Li-Ion battery.

I was just wondering the same thing today....simply because there seems to be several different methods to do it. Some say charge 8 hours, turn off, charge and hour, unplug, turn on charge 10 minutes. Then other methods say to do something different....be nice to have an app to walk you through different methods so you know step by step your doing it right

I calibrated mine last night and I'm going to get about 18 hours if not more from it....before yesterday I was getting 9.
The ONLY other different I did was make some profiles on CPU but I cant imagine it would make that much of a difference. I bet its a mix of both

deonjahy said:
Could someone please develop a good app that would enable the battery to be drained as much as possible and to charge slower so we could all properly calibrate our batteries?
Click to expand...
Click to collapse
That is to funny I was just saying to my wife the other day that I should make one of these programs seeing that there are none already. I hate having to manually kill my battery every night before I charge it again.
Is it needed? It depends on your school of thought, some say yes, some say no. All I know is that on the few devices I have had in the past, if I constantly plug them in to "top them off" then the battery never ends up lasting very long after a few months of doing that. So I am a believer in killing the battery before charging on devices like these.
So the bottom line is if there is a desire for this, I may try to put an app together for it, as I know myself I am interested I just didn't think many others would be.

All the battery calibration tools, are basically deleting the file... right?
Is it that hard to boot into recovery and wipe battery stats?

deonjahy said:
Could someone please develop a good app that would enable the battery to be drained as much as possible and to charge slower so we could all properly calibrate our batteries?
Click to expand...
Click to collapse
I think the second part has to do with hardware. The phones hardware just doesn't have trickle charge implemented and instead lets it drop back down to 90% then starts charging it again.
As for the second part, it came on our phones, even has a default widget. 4G
paulieb81 said:
That is to funny I was just saying to my wife the other day that I should make one of these programs seeing that there are none already. I hate having to manually kill my battery every night before I charge it again.
Is it needed? It depends on your school of thought, some say yes, some say no. All I know is that on the few devices I have had in the past, if I constantly plug them in to "top them off" then the battery never ends up lasting very long after a few months of doing that. So I am a believer in killing the battery before charging on devices like these.
So the bottom line is if there is a desire for this, I may try to put an app together for it, as I know myself I am interested I just didn't think many others would be.
Click to expand...
Click to collapse
Um... actually that is (by most accounts) bad for Li-Ion. You want to AVOID completely draining them. All of this stuff is more art than science, but I have way more often heard that completely draining LI batteries is bad. What kills them is the number of cycles they have been through (like -25 +25, -25 +25, -50 +50 would be a full cycle).
You do however want to give them a full up down cycle once in a while (maybe every 1-3 months) for calibration.
Then again, as I said, it is more art than science, and I have heard your method as being better, but the not draining argument seems to be the vast majority.
I'll try to do a little look-see and update this or repost if I find any stronger evidence.

the thing about my phone and battery that ALWAYS baffled me was i would plug it in at night be it at 10% or 22 i would leave plugged in while slept i would wake up unplug and look at battery percentage and it would be like 95.....no other phone has even unplugged and dropped 5 percent by doing nothing????

turn your brightness to 100% and change it so that it never turns off; use wifi tether and play a 720p movie at the same time; oc your kernel to it's highest stable frequency. it'll drain pretty quickly.

I know I might get flamed for this....
Apple suggests, with their laptops, to once a month or so, run the battery completely down. Then let the battery cool down for a little bit. Then give it a full, uninterrupted, overnight charge. I forget if they said to repeat this a second time, then you're good.
This is all from memory of me reading this a couple years ago or so, so our might not be verbatim. Their laptops use lithium ion technology...
(and they used to blow up and melt down too!) Lol!
Wrong word choice and misspelling courtesy of swype.

mykeldrip said:
the thing about my phone and battery that ALWAYS baffled me was i would plug it in at night be it at 10% or 22 i would leave plugged in while slept i would wake up unplug and look at battery percentage and it would be like 95.....no other phone has even unplugged and dropped 5 percent by doing nothing????
Click to expand...
Click to collapse
That's because the phone stops charging when it reaches 100%, and runs off of battery probably until it reaches in the low 90s, then charges again. You won't ever notice this because the light will always be green. However, you'll notice that unplugging it a few moments after it turns green, the battery will stay anywhere from 100%-98% for a while. At least on my phone it does.

Is there any way to make this program "auto run" during sleep so it can do everything it needs to do during the night charge (similar to quickpull for blackberry)

laydros said:
I think the second part has to do with hardware. The phones hardware just doesn't have trickle charge implemented and instead lets it drop back down to 90% then starts charging it again.
As for the second part, it came on our phones, even has a default widget. 4G
Um... actually that is (by most accounts) bad for Li-Ion. You want to AVOID completely draining them. All of this stuff is more art than science, but I have way more often heard that completely draining LI batteries is bad. What kills them is the number of cycles they have been through (like -25 +25, -25 +25, -50 +50 would be a full cycle).
You do however want to give them a full up down cycle once in a while (maybe every 1-3 months) for calibration.
Then again, as I said, it is more art than science, and I have heard your method as being better, but the not draining argument seems to be the vast majority.
I'll try to do a little look-see and update this or repost if I find any stronger evidence.
Click to expand...
Click to collapse
I am by no means an expert so if you find any reliable info on this and can link us to read, I would love to learn more. All I know is that it is commonly said to drain rechargeable batteries and that I have seen that topping them off very often does lead to battery life degradation.

Tyzing said:
Is there any way to make this program "auto run" during sleep so it can do everything it needs to do during the night charge (similar to quickpull for blackberry)
Click to expand...
Click to collapse
There is no need to fully drain the battery. Its purpose in calibration is to configure the software that is correlating voltage to percentage charged. That's all. Regarding the old Apple advice, that is doing the same thing. It will not affect the hardware.
Now, what WILL affect the hardware is charging itself. Every charge/discharge cycle will reduce the total capacity of the battery. This is why the EVO will not cycle on it's own until 10% discharged. It's improving the overall battery life by that restriction.
In short, you will save money overall by getting a higher capacity battery that you don't force to charge too often. Draining your battery does nothing but give you peace of mind and it only really needs recalibrating when it's total capacity has been reduced which isn't often. 3-6 months.
Sent from my PC36100 using XDA App

herbthehammer said:
I know I might get flamed for this....
Apple suggests, with their laptops, to once a month or so, run the battery completely down. Then let the battery cool down for a little bit. Then give it a full, uninterrupted, overnight charge. I forget if they said to repeat this a second time, then you're good.
This is all from memory of me reading this a couple years ago or so, so our might not be verbatim. Their laptops use lithium ion technology...
(and they used to blow up and melt down too!) Lol!
Wrong word choice and misspelling courtesy of swype.
Click to expand...
Click to collapse
Yeah except that's not a good idea, it will kill the weak cells.

I understand. Still think it would be useful if it would do the "juice until LED changes" method while sleeping though

paulieb81 said:
So the bottom line is if there is a desire for this, I may try to put an app together for it, as I know myself I am interested I just didn't think many others would be.
Click to expand...
Click to collapse
I'm interested!

Btw - what are the charging calibrations people are using? Are you seeing one working better than another?

Im a noob, so take what I say worth a grain of salt but yesterday I did the standard method where you fully charge...turn off...plug back in until led changes green and do it a few times.
I went from 9 hours to 17 hours with no other changes except a few profiles in setCPU.
I did this just last night so my results are fresh.

Tyzing said:
I calibrated mine last night and I'm going to get about 18 hours if not more from it....before yesterday I was getting 9.
The ONLY other different I did was make some profiles on CPU but I cant imagine it would make that much of a difference. I bet its a mix of both
Click to expand...
Click to collapse
A few SetCPU profiles is all it takes to see a dramatic increase in battery life, especially while screen off. If you disable it I bet whatever gain you think was from 'calibrating' it disappears.

battery on fire

Been Runin kingdom for weeks now had no issues til yesterday my battery started burning up the entire back of my evolution is very hot and i only get bout an our of life. I uninstalled all resent apps and haven't changed the way i charge the batteries. Any idea wnat's goin oh?

Your battery is fried.

it could be the kernel u used. I heard some cases where the sbc kernels were making the batteries smoke and basically garbage after that
Sent from my PC36100 using XDA Premium App

It looks like you're missing an essential accessory: http://www.amazon.com/Rome-3100-Chr...H9Q4/ref=sr_1_6?ie=UTF8&qid=1306477812&sr=8-6

jesuspgt said:
It looks like you're missing an essential accessory: http://www.amazon.com/Rome-3100-Chr...H9Q4/ref=sr_1_6?ie=UTF8&qid=1306477812&sr=8-6
Click to expand...
Click to collapse
I got a good laugh out of that.
Though, if you were using an sbc kernel, guilt right there; or your battery is toast.

Love the stupid replies but its not the kernel i use a battery wall charger i never charge via USB

did you ever let the battery fully discharge?
i killed a Li-on battery on a laptop by always plugging it in and never letting it discharge.
now it only lasts about 10 minutes and dies when i unplug it.

Usually let it discharge to about 6% its multiple batteries and just started happening.

rvoisine4 said:
Usually let it discharge to about 6% its multiple batteries and just started happening.
Click to expand...
Click to collapse
Well the appropriate percentage to discharge is 5% because anything prior will only make your battery burn up and make the back plate hot and only give you 10 minute battery left thereafter. - see this explains all. close thread please.
Okay, so what it really sounds like is a case of a bad battery. Sometimes you just get those and you are the lucky person at that.
The mention about SBC kernels and the battery issues were even case-by-case at that. There were no proven conclusions but only hypothetical scenarios at best. I'm not discrediting ones who experienced it but just channeling logic.
For your matter, you do realize that the Kingdom ROM is never going to be 100% stable, as mentioned in the OP, so there could have been a freak instance of it not agreeing with your phone. The inevitable truth is that even if you and I have the same phone, same hardware, there are still small differences in parts sometimes and even those make one ROM or kernel agree and disagree with each of our own.
In short, I believe that it's best to go buy another battery in this case since it just sounds like you're going to need one anyways. As for the cause, it's hard to say because none of us really know your entire hardware build, kernel, applications used, and any other variables that could have caused this.
Here's a link to a ebay listing for batteries:
http://cgi.ebay.com/2x2000mAh-Batte...898158?pt=PDA_Accessories&hash=item1c1a3706ee

If ur using a SBC kernel it doesn't matter how u charge ur phone. It would happen with wall charger or computer charge

Kool-aid anyone? I hope you people realize that the Kingdom ROM does not have SBC. Also that the hottest running components are right under the battery. Just from what the Op posted it sounds like the phone is heating up off the charger, and getting only a hour of battery life.
A number of things could cause the overheating condition. From an app grabbing the CPU and locking it at 100% to having the 4G radio on in a no-signal condition. The battery will also get very hot if it has a high load put on it as well again pointing to something other than SBC going awry. I would suggest that the Op do a complete wipe, and reinstall the ROM. Then install Battery Monitor, OS Monitor, and SeePU (to monitor the CPU activity).
Battery Monitor can keep track on how your battery is being used as well as the battery temp(and you can set a high temp alarm as well). SeePU monitors CPU, and network usage in real time. OSMonitor is a process monitor (much like top/kill in *nix, or TaskManager in Windows) so you can see, and kill off a runaway process.
Hopefully this is a bit more helpful.

we dont need no water let the mother F----er burn!

{ParanoiA} said:
If ur using a SBC kernel it doesn't matter how u charge ur phone. It would happen with wall charger or computer charge
Click to expand...
Click to collapse
What i meant was i take the batteries out of the phone and put the battery itself into a wall charger but thanx

kf2m said:
Kool-aid anyone? I hope you people realize that the Kingdom ROM does not have SBC. Also that the hottest running components are right under the battery. Just from what the Op posted it sounds like the phone is heating up off the charger, and getting only a hour of battery life.
A number of things could cause the overheating condition. From an app grabbing the CPU and locking it at 100% to having the 4G radio on in a no-signal condition. The battery will also get very hot if it has a high load put on it as well again pointing to something other than SBC going awry. I would suggest that the Op do a complete wipe, and reinstall the ROM. Then install Battery Monitor, OS Monitor, and SeePU (to monitor the CPU activity).
Battery Monitor can keep track on how your battery is being used as well as the battery temp(and you can set a high temp alarm as well). SeePU monitors CPU, and network usage in real time. OSMonitor is a process monitor (much like top/kill in *nix, or TaskManager in Windows) so you can see, and kill off a runaway process.
Hopefully this is a bit more helpful.
Click to expand...
Click to collapse
Thanks i will look into it. Good to see someone trying to help instead of just trying to feel superior. To everyone else i know what SBC does and i know I'm not using one.

SBC doesn't make batteries explode...more times than not you have bad battery
midget tossing is habit...2010 midwest regional champion... hw 001

---*Bump Charge your Android Phone to Double Battery Life*---

MOD EDIT: Removed at the request of AndroidAdvices.com
Source ::
http://androidadvices.com/bump-char...mpaign=Feed:+AndroidAdvices+(Android+Advices)
Sent from my GT-S5360 using xda premium
***DON'T DO DRUGS***

?????? Believe it or not ??????
Sent from my GT-S5360 using xda premium

Lmao thats like a whole day of charging.

raolemo said:
Lmao thats like a whole day of charging.
Click to expand...
Click to collapse
Hahaha ....
Funny..
Why not hole night ....????
Sent from my GT-S5360 using xda premium

Its like you are calibrating your battery again and again... I hav evn seen a thread a same like this for my psp years ago and it worked on it... Still to test on my phone
Sent from my GT-S5360 using XDA

I can't find any logical reason to explain how this method will work. I'm a chemist student, and I know the technology which used in our battery. as far as I know, charge our battery longer than its full time will decrease our battery life.
btw, it may sounds silly. after some years, we'll found that our battery power decreased. it will drain quicker than usual. if this happen, we may wrap our battery into a plastic bag then put it into freezer for 3-7 days.

I don't think bump charging is such a good idea. Bump charging kills your battery over time. I'll link an article later about it, soon as I find it.
Tapatalked.

kurotsugi said:
...as far as I know, charge our battery longer than its full time will decrease our battery life. ...
Click to expand...
Click to collapse
Silvane said:
I don't think bump charging is such a good idea. Bump charging kills your battery over time. I'll link an article later about it, soon as I find it.
.
Click to expand...
Click to collapse
+1
charge more than necessary is a bad idea. if you have good phone, they have overcharge protection circuit that cut charge current. so charge over 100% only waste your time and electric bill. if you have bad phone, that make your battery overcharge, and that's very2 bad. bump charge maybe can fooling protection circuit, but that's make your battery overcharge.
here is my tips, it will double your battery capacities.
- charge your battery until 100%
- unplug your charger, turn off phone if still on
- go to your local store, and buy new battery
- swap your battery and charge your new battery
ok, that's a joke. but it's a good idea if you far from electric for few days. and if you use your phone for years, buy extra battery after 6 month to 1 year after your phone release is a good idea (if you have extra money of course) because it's cheaper (a lot of supply in market).

Here's the article. http://byrong.com/PowerTesting/
It's pretty long so I'll post the important points here.
Interestingly enough, improvements in battery management technology have compounded the average user’s perception of this problem. Older phones were rather inelegant in their charging behavior; usually filling the battery to capacity and then switching to a trickle current to maintain the highest charge possible. This offered the highest usage time in the short-term, but was damaging the battery over the course of ownership. As explained at Battery University, “The time at which the battery stays at [maximum charge] should be as short as possible. Prolonged high voltage promotes corrosion, especially at elevated temperatures.”[1]
This is why many new phones will “lose” up to 10% within a few minutes of coming off the charger. The reality is that the battery was only at 100% capacity for a brief moment, after which the battery management system allowed it to slowly dip down to around 90%. Leaving the phone plugged in overnight does not make a difference: the phone only uses the wall current to maintain a partial charge state.
Click to expand...
Click to collapse
Bump It. Or Should You?
One technique that has gained popularity in the user community is "bump charging." To bump charge a device, turn it off completely, and plug it into a charger. Wait until the indicator light shows a full charge (on the ADR6300, for example, the charging LED changes from amber to green) but do not yet turn the device back on. Instead, disconnect and immediately reconnect the power cord. The device will now accept more charge before saying it is full. This disconnect/reconnect process can be repeated multiple times, each time squeezing just a little bit more into the battery. Does it work?
Click to expand...
Click to collapse
The answer, of course, is that bump charging definitely works.
So what does it all mean?
If you absolutely need the highest capacity on a device like this, you will need to bump charge. There are currently people experimenting with "fixes" for this, but I have yet to see one that works. Be warned, however, that repeated bump charging will wear your battery faster and begin to reduce its capacity. If you are a "power user" who will buy a new battery a few months from now anyway, this presumably isn't a concern. If you are an average consumer who uses a device for a few years, I would recommend that you stay away from bump charging. The bottom line is that you don't really "need" to do it unless you are actually depleting your battery to 0% on a regular basis.
If you are someone who can top off your phone on a regular basis, do it. Plug it in when you're at home. Plug it in when you're at your desk. As explained by Battery University, "Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory."[2]
Beyond that, the best advice I can offer is to stop paying such close attention to your battery gauge and to just use your phone. Charge it whenever you can, and then stop obsessing over the exact numbers. If you really need more usage time, buy an extended-capacity battery and use it normally.
Click to expand...
Click to collapse
Still pretty long, but worth reading.

I don't believe it:''(
Hehehe..:-[:-[:-[
Sent from my GT-S5360 using xda premium

irfanbagus said:
+1
charge more than necessary is a bad idea. if you have good phone, they have overcharge protection circuit that cut charge current. so charge over 100% only waste your time and electric bill. if you have bad phone, that make your battery overcharge, and that's very2 bad. bump charge maybe can fooling protection circuit, but that's make your battery overcharge.
here is my tips, it will double your battery capacities.
- charge your battery until 100%
- unplug your charger, turn off phone if still on
- go to your local store, and buy new battery
- swap your battery and charge your new battery
ok, that's a joke. but it's a good idea if you far from electric for few days. and if you use your phone for years, buy extra battery after 6 month to 1 year after your phone release is a good idea (if you have extra money of course) because it's cheaper (a lot of supply in market).
Click to expand...
Click to collapse
+1 its all just wast our time and decrease the battery life. i think use a tweak script is enough

reyvababtista said:
+1 its all just wast our time and decrease the battery life. i think use a tweak script is enough
Click to expand...
Click to collapse
Agree with u :-\:-\

Ive read through XDA that bump charging increases your battery life but reduces the battery's life span

Welcome back stamatis. Yes, if you read my post in the first page it explains how.
Tapatalked.

Is charging the battery constantly bad?

Hey everyone.
Just wanted to know if charging the tablet almost constantly is a bad thing. I use the tablet a lot every day, so when I'm at 60%, for example, I charge it again while I'm at lunch or doing something else, so that I can keep using the tablet later with full charge available again. I never let my tablet go down to 5%.
Is this bad for the battery in the long run?
Thanks.

Generally, it's best to not allow full cycle recharging...i.e. not fully charge or discharge, it's better for small charge cycles, like 40%<->90%
Some links to help garner some understanding:
http://forum.xda-developers.com/showthread.php?t=2469261
Which provides these links:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
http://www.eetasia.com/STATIC/PDF/200806/EEOL_2008JUN16_POW_TA_01.pdf
http://macomp.ru/wp-content/uploads/2012/04/1607542.pdf

mdamaged said:
Generally, it's best to not allow full cycle recharging...i.e. not fully charge or discharge, it's better for small charge cycles, like 40%<->90%
Some links to help garner some understanding:
http://forum.xda-developers.com/showthread.php?t=2469261
Which provides these links:
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
http://www.eetasia.com/STATIC/PDF/200806/EEOL_2008JUN16_POW_TA_01.pdf
http://macomp.ru/wp-content/uploads/2012/04/1607542.pdf
Click to expand...
Click to collapse
That's right. At least for what I know. It says the same on Apple's website about batteries. :good:

So then I guess I'm doing it right, correct?
I charge from 60% to 100% or from 50% to 100% again. Maybe I should do it only up to 90% then.

Sensamic said:
So then I guess I'm doing it right, correct?
I charge from 60% to 100% or from 50% to 100% again. Maybe I should do it only up to 90% then.
Click to expand...
Click to collapse
I only charge to 100% when I am going to be away from a charger for a long time, otherwise I stop at 90%-ish (my battery app announces when it is at 90% and there are kernels which will stop the charge at what you specify), as the links above state, charging to 100% all the time will shorten the lifetime of your battery, this may or may not matter to someone, for example, if you buy a new tablet every year, or you're well-off financially, then you're probably not too concerned with how many years your battery lasts, in which case charging to 100% a lot won't really matter much, since you'll likely own a newer tablet by time the battery does die.
In short, it's up to you and what you want to get out of your battery's lifetime.

I am using the good old 100% and then use until near 0%. I have found that this way the battery lasts longer.
As I am writing i have 43% battery with 5:40h screen time. I am using Greenify btw.

mulperi said:
I am using the good old 100% and then use until near 0%. I have found that this way the battery lasts longer.
As I am writing i have 43% battery with 5:40h screen time. I am using Greenify btw.
Click to expand...
Click to collapse
There are two kinds of battery life. These recommendations are for battery longevity. How long until the battery begins to lose the ability to fully charge.
The article at battery university explains how charging works, and the best way to charge batteries. What you are doing is the opposite of that way. If you think you are going to have your tablet longer than a year, it's worth taking the time to read the articles linked.
There is noting particularly wrong with full charges every time, but there are 'righter' ways to charge.
Sent from my Nexus 7 using XDA Premium 4 mobile app

Is there any kind of battery forming on new nexus7?
I mean i bought nexus 7 and straight from box i rooted,unlocked and installed custom kernel which forbids battery 2 fully charge over 92%...
Should i revert to stock and firstly fully charge my tablet then go to custom kernel or i am good at it right now ? Tnx
ps. (my nexus 7 was on 38% when i put it out of box)

aigaming said:
Is there any kind of battery forming on new nexus7?
I mean i bought nexus 7 and straight from box i rooted,unlocked and installed custom kernel which forbids battery 2 fully charge over 92%...
Should i revery to stock and firstly fully charge my tablet then go to custom kernel or i am good at it right now ? Tnx
ps. (my nexus 7 was on 38% when i put it out of box)
Click to expand...
Click to collapse
Based on what I've read, you'd gain no benefit by reverting to stock and charging to 100%, it MAY or may not effect the internal battery calibration, but it does not affect the lifetime or anything.
Also, these kernels usually have a way for you to change the % at which it stops, usually by cat'ing or changing some value that the kernel reads, you could just cat/echo/change 92% to 100%, and let it charge to 100%, then change it back. YMMV.

mdamaged said:
Based on what I've read, you'd gain no benefit by reverting to stock and charging to 100%, it MAY or may not effect the internal battery calibration, but it does not affect the lifetime or anything.
Also, these kernels usually have a way for you to change the % at which it stops, usually by cat'ing or changing some value that the kernel reads, you could just cat/echo/change 92% to 100%, and let it charge to 100%, then change it back. YMMV.
Click to expand...
Click to collapse
Tnx m8

The worst thing you can do to lithium-ion batteries is let them discharge completely.
Not letting the lithium-ion batteries discharge more than 10% will increase the cycles by thousands we're talking going from 350 cycles to 4000.
So, ideally, you want to charge your batteries (of this type) after a 10% discharge but we all know that's impossible so the best thing you can do is to charge your tablet everytime you can. Even if it has much battery left.

I knew that allready but i didn't know that it is not good to charge battery to 100 till i came to nexus 7 forums I always charged all my devices to 100% and never had a problem with battery
Sent from my LG-P990 using Tapatalk

aigaming said:
I knew that allready but i didn't know that it is not good to charge battery to 100 till i came to nexus 7 forums I always charged all my devices to 100% and never had a problem with battery
Sent from my LG-P990 using Tapatalk
Click to expand...
Click to collapse
You should charge to 100%, there is no problem with that.
On a perfect world you would want to charge everytime the battery hit 90%, this gives the best amount of charge cycles and life time.
However we all know that's not going to happen because the tablet is here to serve our needs and not the other way around so stick to charging it whenever you can.

Great Question!
First let me start off by saying to the person that started this thread that this was a really good question to ask!
Now if you are trying to get the most out of your battery then you could look into installing/flashing a custom kernel that could allow for undervolting which could in theory give your battery more life.
So you all are saying that the best thing to do is to charge up to 90% and never let it get down to less than 10%? Always start charging when the battery gets to like 40%?
One question i have for the Nexus 7 2013. Is it even possible to remove the battery for this tablet or does it void the warranty? Second has anyone purchased a spare battery (if possible) for their Nexus 7 2013? If you did could you post a link to where you got it and let us know how much you paid?...
Great question and thread!
-droidshadow

droidshadow said:
First let me start off by saying to the person that started this thread that this was a really good question to ask!
Now if you are trying to get the most out of your battery then you could look into installing/flashing a custom kernel that could allow for undervolting which could in theory give your battery more life.
So you all are saying that the best thing to do is to charge up to 90% and never let it get down to less than 10%? Always start charging when the battery gets to like 40%?
Click to expand...
Click to collapse
There has been speculation in the franco thread that undervolting could actually hurt battery charge life, due to the CPU having to work harder due to having less voltage, not sure if that has any merit or not.
The reasoning behind the not charging above 90%, and not allowing full-cycle charges is outlined much better in the links I posted than I could do here, also I would be just regurgitating information that is already there for the most part.
40% is just a number I pulled out of air, the best practice is to keep the charge delta as small as possible. So, let's say we charge the device to 90%, it is better to charge it when it hits 80% than it is to wait till it hits 70%, because a smaller charge delta has occurred, so charge often, but if you want the lifetime of your battery to be maximized (lifetime as in the way ezas explained it, i.e. "(...)battery longevity. How long until the battery begins to lose the ability to fully charge"), than try to not charge it to 100%.
Also, it has to be said, heat also affects the battery longevity, that is why I also recommend not charging while a device is in its case. And not leaving it sit on a Qi charger for too long, some cause more heat than others, but heat is a battery's enemy.
droidshadow said:
One question i have for the Nexus 7 2013. Is it even possible to remove the battery for this tablet or does it void the warranty? Second has anyone purchased a spare battery (if possible) for their Nexus 7 2013? If you did could you post a link to where you got it and let us know how much you paid?...
Great question and thread!
-droidshadow
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It would no doubt void your warranty. As for battery replacements, I have not yet found one, I'm not saying there isn't one to be found, but I have yet to find it, I figure the reason is because they are not yet in demand since the tablet is relatively new and demands for replacement batteries would be too low, obviously and eventually this will change.

droidshadow said:
First let me start off by saying to the person that started this thread that this was a really good question to ask!
Now if you are trying to get the most out of your battery then you could look into installing/flashing a custom kernel that could allow for undervolting which could in theory give your battery more life.
So you all are saying that the best thing to do is to charge up to 90% and never let it get down to less than 10%? Always start charging when the battery gets to like 40%?
One question i have for the Nexus 7 2013. Is it even possible to remove the battery for this tablet or does it void the warranty? Second has anyone purchased a spare battery (if possible) for their Nexus 7 2013? If you did could you post a link to where you got it and let us know how much you paid?...
Great question and thread!
-droidshadow
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Click to collapse
What I said was that, theorically, in a perfect world, you want to charge your tablet when it starts losing charge and ideally never let it get below 90%. This is almost impossible because we use our tablet and we don't want to constantly be charging it so ideally you want to charge it whenever you can.

Is it ok for battery life to only use wireless charging?

I'm a complete noob on wireless charging and this is the first time I have bought a device that has it. I bought the plain flat wireless charger for use with this Note 7 to have by my computer desk and now I'm thinking of getting one for where I place my phone every night to charge. My question to anyone who has had extensive use with wireless charging, is it ok to ONLY use wireless charging? Even overnight? Not sure if it matters but I turn my phone off to charge every night.

You should have no problems only using the wireless charger. The only difference is that wirelessly charging your phone will be slower then using the fast charging cable that came with the phone.

Side note, I've started turning off fast charging when i charge overnight. Don't need it to charge quicker at that point and figure it may give the battery some extra life after a while. I usually avoid charging overnight so it doesn't sit at 100% for hours.
Back on topic, I think wireless creates more heat...heat bad...do the math. Plus taking it on/off charger constantly is def no good.

Only wireless charge my s7 edge and doing the same with my note 7.
If the battery get very low and i need to use the phone ill put it on the cable.
But no damage will happen. The phone has built in safety and the charger does also.

tgtoys said:
Side note, I've started turning off fast charging when i charge overnight. Don't need it to charge quicker at that point and figure it may give the battery some extra life after a while. I usually avoid charging overnight so it doesn't sit at 100% for hours.
Back on topic, I think wireless creates more heat...heat bad...do the math. Plus taking it on/off charger constantly is def no good.
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pointless, its all software controlled.

ducksauce88 said:
I'm a complete noob on wireless charging and this is the first time I have bought a device that has it. I bought the plain flat wireless charger for use with this Note 7 to have by my computer desk and now I'm thinking of getting one for where I place my phone every night to charge. My question to anyone who has had extensive use with wireless charging, is it ok to ONLY use wireless charging? Even overnight? Not sure if it matters but I turn my phone off to charge every night.
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Hi. I feel your frustration!
I did a little online research regarding battery life and charging and found a site that has real qualified experts with Ph.D's in this science.
Bottom line is all charging shortens battery life.
It appears to come down to a few rules.
Don't fully charge your battery. IE don't leave it on all night as we do.
Don't let your battery fully drain.
Don't use quick charging.
Don't use wireless charge.
Use the proprietary charger that comes with your mobile. (mine came with a quick charger though?).
Heat and built in obsolescence seem to be the problem. Its very complex and its best you Google this subject yourself as there are so many forum 'experts' one never knows what to believe.
Did you know that fast charging stops at 60% and then goes to trickle? If that's the case why cant we fast charge....its so confusing.
Research this yourself. Its best.
Ryland
NOT a battery expert!

Ryland Johnson said:
It appears to come down to a few rules.
Don't fully charge your battery. IE don't leave it on all night as we do.
Don't let your battery fully drain.
Don't use quick charging.
Don't use wireless charge.
Use the proprietary charger that comes with your mobile. (mine came with a quick charger though?).
Heat and built in obsolescence seem to be the problem. Its very complex and its best you Google this subject yourself as there are so many forum 'experts' one never knows what to believe.
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.
I am not certain we should worry so much about all this. At the end of the day we have to put a certain level of trust in the manufacturer of the phone, that they have put the effort in to making sure we don't damage or shorten the length of life to the device because of the technology they have introduced.
For the record, I 'slow-wireless' charge my devices overnight and top up on a fast charge cable whenever I need to. I never let it completely discharge and I don't recharge above 80% generally. No noticeable issues over the past 2yrs.
.

Thanks for all the reply guys. I wasn't really worried about the it being overnight since I know that these manufacturers let it get to 100% and the let it drain, then charge again so it's never fully saying at 100%. I just didn't know the long term effect of wireless charging. Looks like all charging effects it. Haha. I'll turn off quick charge and see if that helps anything. I work form home so I'm almost always by my charger. I guess i just shouldn't be as worried because no matter what the battery will get worse over time. I bet it's not really hard to pull the back off this phone either to replace it.

i killed tupac said:
pointless, its all software controlled.
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Wanna elaborate on that one? Pretty sure everything I said was correct, but if not please do grace us more with something more than "pointless".

apprentice said:
.
I am not certain we should worry so much about all this. At the end of the day we have to put a certain level of trust in the manufacturer of the phone, that they have put the effort in to making sure we don't damage or shorten the length of life to the device because of the technology they have introduced.
For the record, I 'slow-wireless' charge my devices overnight and top up on a fast charge cable whenever I need to. I never let it completely discharge and I don't recharge above 80% generally. No noticeable issues over the past 2yrs.
.
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Hi, Cant disagree with what you write however......lol. Many years ago a doctor would prescribe medication and said medication came with no manufacturers information just the dosage and time that our doctor prescribed.
These days drug manufacturers have to give highly detailed literature with all medications. Here is my point at last.
If you read the blurb given, for say a pain killer, it may list pain as one of the side effects. I once purchased an over the counter sea sickness remedy for my son and in the blurb it gave NAUSEA as a side effect! Certain antidepressants can cause suicide! Now if we parallel this to company's who 'just' manufacture mobile phones imagine what they know that they DON'T inform us about? Just food for thought. :highfive:
Oh another point...how many owners actually read that massive manufacturers owners manual? Should the owners manual be read no end of situations and misfortunes would and could be understood and avoided.
Ryland

tgtoys said:
Wanna elaborate on that one? Pretty sure everything I said was correct, but if not please do grace us more with something more than "pointless".
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sorry. the software and power managment in Android will not allow the battery to destroy itself or even degrade itself. it does not matter anymore how you charge them, for how long, etc. The only thing that can harm it is cheap cables that fail and cross wires externally, which then route voltage into the port.

i killed tupac said:
sorry. the software and power managment in Android will not allow the battery to destroy itself or even degrade itself. it does not matter anymore how you charge them, for how long, etc. The only thing that can harm it is cheap cables that fail and cross wires externally, which then route voltage into the port.
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I know the software will help it last longer and not do immediate damage, but you can most definitely degrade it quicker.