Database Info

[Q] Battery Charging & calibration query

For MB865 in perticular :
1)What difference does it make if you charge from empty to 100% in switched off stage and the same in on state? Which is better?
2)How should we calibrate the battery and how often using which app for unrooted MB865 Asia retail?
3)Also if phone dies (switches off) constantly due to insufficient charge does it harm the battery in terms of cells getting destroyed gradually? Mine dies many times mostly in night due to day usage before I charge in the morning again.
4) Does switching off or switching on the phone while charging have any effect issue on phone or the battery??
Thanks in advance for inputs for all queries.

Calibrating the battery doesn't do anything. I wouldn't even mess with it. Every once in a while, charge your battery to 100% and use it til it dies without charging. That's about it. There isn't a whole lot you can do with you battery to make it better.
Sent from my SAMSUNG-SGH-I997 using xda premium

tmease1 said:
Calibrating the battery doesn't do anything. I wouldn't even mess with it. Every once in a while, charge your battery to 100% and use it til it dies without charging. That's about it. There isn't a whole lot you can do with you battery to make it better.
Sent from my SAMSUNG-SGH-I997 using xda premium
Click to expand...
Click to collapse
Thanks & I guess it covers #2 of my queries . Can't even begin to describe how much essential my Moto WPS-602-P893 external portable battery pack charger is. I have to add when I first unboxed my Atrix 2 last month (launched only recently in India) the first thing I did without switching it on, was put it on charge for straight 6-7 hours (as I remember having read somewhere that devices are charged 50% from the factory & the initial charge plays an important role in the future performance of the battery. 3G & GPS coupled with some gaming suck the battery dry pronto.

@tmease1 Are you sure? I have read and tested that resetting the battery calibrations in more accurate reporting of what apps are specifically draining your battery.
Charging when your phone is off just makes it charge faster, nothing else.
And from my knowledge of chemistry Lithium-ion batteries (the one in your phone) should not shouldn't be let reach a complete stage of discharge. (I can give you an explanation of you would like). Lithium-ion batteries are very flexible, they can be charged at any point in the cycle but again letting it completely discharge is to be avoided. It shortens the battery life by about half after a year.

farshad525hou said:
@tmease1 Are you sure? I have read and tested that resetting the battery calibrations in more accurate reporting of what apps are specifically draining your battery.
Charging when your phone is off just makes it charge faster, nothing else.
And from my knowledge of chemistry Lithium-ion batteries (the one in your phone) should not shouldn't be let reach a complete stage of discharge. (I can give you an explanation of you would like). Lithium-ion batteries are very flexible, they can be charged at any point in the cycle but again letting it completely discharge is to be avoided. It shortens the battery life by about half after a year.
Click to expand...
Click to collapse
I might not be right. From my personal experience what i told him is how i run my phone. I use to be the king of trying out new things to improve battery life. I would try anything. I use to calibrate my battery after ever flash and honestly have not seen any difference since i stopped. You would think that calibrating it would do more harm than good after awhile. Google at one time said that it wasn't necessary. I don't really know for sure what to tell anyone to do. I gave up on battery up keep awhile ago. I got sick of messing with it and just carried an extra charger.
Sent from my SAMSUNG-SGH-I997 using xda premium

Whenever I flash a different ROM I reset battery in CWM. Other than that, I'll run the battery down all the way at least once a month then recharge to 100%.
Sent from my MB865 using Tapatalk 2

Thanks for all your thoughts and inputs guys.
@Farshad could u please share method for resetting the battery calibration. Just want to give it a whirl to see my experience. I am unrooted on MB865.

Not agreeing or disagreeing with either side. But here is what Battery University says.
How to Prolong Lithium-based Batteries - Battery University
Similar to a mechanical device that wears out faster with heavy use, so also does the depth of discharge (DoD) determine the cycle count. 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.
Click to expand...
Click to collapse

Also you actually cannot completely discharge li on batteries. Doing so royally screws them up. So devices now that use them have a circuit which kicks in when they reach a minimum level telling the device to shut off.
Sent from something off of star trek

RAD7 said:
Thanks for all your thoughts and inputs guys.
@Farshad could u please share method for resetting the battery calibration. Just want to give it a whirl to see my experience. I am unrooted on MB865.
Click to expand...
Click to collapse
Yeah, all you have to do is boot into CWM. Go to advanced, and there should be an option to wipte battery stats. Alternatively you could download an app just search "battery stats wiper" or something of that sort in play store.

How to make your battery last longest?

So I just got my galaxy s3. I haven't turned it on yet. But I heard that you were supposed to charge it fully and then let it die. Then charge it fully again and then start using it. That when. Doing this you will optimize your battery so it will charge faster, hold a charge faster, and just last longer.
Is this myth or fact? And if fact how do I do the steps so I get it right?
Thanks for the help and sorry for any mistakes it was typed on my phone that has aa small touchscreen.
Sent from my HERO200 using xda premium

Yeah running it fully out of battery like that harms the life of the lithium ion cell

Always?
AshtonTS said:
Yeah running it fully out of battery like that harms the life of the lithium ion cell
Click to expand...
Click to collapse
Now is this ALWAYS the case?
To clarify what I am asking I am saying does it always harm the life of the lithium ion cell by letting die fully? Like even after 6 or 8 or 12 months of owing the phone (or any device), not just one the first charge. This could be very useful for further reference...:good:

There are some things can help increase life of litium batteries. First, don't let it go down to 0% as mentioned, keep not lower than 50%. Once per month it is recommended to discharge battery to 0% and then charge it to 100% again for device callibration.

This is a good question. I always thought that by discharging and charging batteries at full cycles, you would make their total useful life last longer.
In fact, this happened to me with a notebook, which I used to play with and charging at the same time. In the end, the battery lasted for a few minutes and I had to sell it.
But in all: is this really true? I would also like to know if is truth or myth.

UnawareQuagsire said:
This is a good question. I always thought that by discharging and charging batteries at full cycles, you would make their total useful life last longer.
In fact, this happened to me with a notebook, which I used to play with and charging at the same time. In the end, the battery lasted for a few minutes and I had to sell it.
But in all: is this really true? I would also like to know if is truth or myth.
Click to expand...
Click to collapse
Yes yes!!
This happened too (as funny as it is) my grandma. She would ALWAYS have her little nnotebook plugged in and eventually it drained. I found out because one day I took it off the plug a d it died while I was on facebook after around 7 minutes.
So I bought a new battery and now she charfes iit and takes it off the plug to use it and twice a month she lets it die and it has worked
Sent from my HERO200 using xda premium

1) don't keep live wallpapers
2) keep the brightness to the lowest possible
3) don't charge while playing games or even use the phone
4) don't use apps which run in the background and drain the batter
5) all the suggestions given in the above posts lol
Sent from my MT27i using xda app-developers app

Don't let it die to zero.
When it warns you at 15% just charge it.
Sent from my U8150 using XDA

Allanitomwesh said:
Don't let it die to zero.
When it warns you at 15% just charge it.
Sent from my U8150 using XDA
Click to expand...
Click to collapse
Sir i just want to ask If we charge our battery even if its above 20% or if the battery icon is not yet colored red will it affect our battery life in the future? Or we should only charge our battery when it is below 20-15% ?

lanlan_10 said:
Sir i just want to ask If we charge our battery even if its above 20% or if the battery icon is not yet colored red will it affect our battery life in the future? Or we should only charge our battery when it is below 20-15% ?
Click to expand...
Click to collapse
Charge it anytime you want.
Sent from my U8150 using XDA

snipesome said:
So I just got my galaxy s3. I haven't turned it on yet. But I heard that you were supposed to charge it fully and then let it die. Then charge it fully again and then start using it. That when. Doing this you will optimize your battery so it will charge faster, hold a charge faster, and just last longer.
Is this myth or fact? And if fact how do I do the steps so I get it right?
Thanks for the help and sorry for any mistakes it was typed on my phone that has aa small touchscreen.
Sent from my HERO200 using xda premium
Click to expand...
Click to collapse
It is true if you have a phone like Nokia 3310 if you do not have a NiMH battery do not do that you will lose time also you do not need to "format" a Li-Ion battery
read about lazy-battery effect on Wikipedia

rooting you phone to underclock/undervolt should also help out battery life pretty significantly ^_^

Lithium ion cells do not suffer from the "memory" effect as older rechargeable batteries. You do not have to let the battery run all the way down then fully charge it again to get the best performance that way, that was for the older types of batteries (again so you wouldn't get that "memory" effect) matter of fact its rather harmful to the battery to run it all the way down.
Charge the battery as often as you want no matter at what level it is. If you are going to do some high power **** (play a game, watch a movie) then plug it if if you have a charger around. The longer the battery stays at a high level the better for it. Try not to let your battery run your phone at a low state (charge it asap). Its ok to leave it on the charger even after its fully charged. Your phone and charger are smart enough to know when to start/stop charging the battery. This will ensure a long life for your battery.
...as for your phone...simple rules...if you are not using it( DATA, WIFI, GPS, SYNC, BLUETOOTH) then turn it off. Screen is the biggest battery drainer...KEEP IT ON AUTO!...darker themes really help alot...make your screen go off at 30 sec. or less. Have fun with your new phone homie.

mrrobc97 said:
Lithium ion cells do not suffer from the "memory" effect as older rechargeable batteries. You do not have to let the battery run all the way down then fully charge it again to get the best performance that way, that was for the older types of batteries (again so you wouldn't get that "memory" effect) matter of fact its rather harmful to the battery to run it all the way down.
Charge the battery as often as you want no matter at what level it is. If you are going to do some high power **** (play a game, watch a movie) then plug it if if you have a charger around. The longer the battery stays at a high level the better for it. Try not to let your battery run your phone at a low state (charge it asap). Its ok to leave it on the charger even after its fully charged. Your phone and charger are smart enough to know when to start/stop charging the battery. This will ensure a long life for your battery.
...as for your phone...simple rules...if you are not using it( DATA, WIFI, GPS, SYNC, BLUETOOTH) then turn it off. Screen is the biggest battery drainer...KEEP IT ON AUTO!...darker themes really help alot...make your screen go off at 30 sec. or less. Have fun with your new phone homie.
Click to expand...
Click to collapse
This helps a lot than
ks. I think I am going to make a video on the stuff that has been shared on this thread. My YouTube is the same as my xda. Snipesome. I have 2600 subs and partnered. Is anyone more qualified who would like to mske it instead?
Sent from my HERO200 using xda premium

When should i replace the battery?

I am using p500 from one and half years and i use it heavily so i have to charge it every day. Now i feel that the battery has done his job
And now i am getting a poor battery life
Sent from my LG-P500 using xda app-developers app

> how poor is it? about how many hours on normal usage? I use mine heavily on one day and it last 8-9hrs

I'm using my phone since 19 months and battery is fine heavy usage gets me 8-10 hrs battery while moderate gets about 24Hr and simple usage(just for call and msg) gets me more than 50hrs..

A Lithium-ion battery has normally 400-1200 charging cycles (Ref. Wiki).
Couple of things that shorten life span of a battery:
1) Complete discharging, it is recommended not to go below 20%
2) High temperature which implies that if you OC too much your device will heat up and battery life shortened
3) If you consume 50% of your device battery on day 1, recharge to 100% at night, and do the same thing on day 2, then you would have just finished up one charge cycle of its battery life. Constantly recharging a lithium ion battery does not shorten the battery life more than normal usage would. Hence constantly recharging a lithium ion battery does not shorten the battery life more than normal usage would. Avoid letting it sit on empty for too long; instead, keep it charged-up if you can. (REF.)

My battery behaves in a funny way. With moderate use it dissipates very fast. and then if I keep screen off for more than 10 mins then my battery starts regenerating automatically(5-7%)

I noticed a few times, with some of the phones or devices I used to own, that if you, for example, after charging the phone, let's say play a graphics intensive 3D game for 15 minutes, the battery meter will drop quite a lot(e.g. 15%). But if you leave it on stand-by immediately, you will notice that after some time, the battery meter will indicate with 3-5-7% more than before.

My battery life is under 2 hours in 3g continues downloading!
Sent from my LG-P500 using xda app-developers app

nundoo said:
I noticed a few times, with some of the phones or devices I used to own, that if you, for example, after charging the phone, let's say play a graphics intensive 3D game for 15 minutes, the battery meter will drop quite a lot(e.g. 15%). But if you leave it on stand-by immediately, you will notice that after some time, the battery meter will indicate with 3-5-7% more than before.
Click to expand...
Click to collapse
I have also faced this but differently
At night my phone's battery was 78
And at the morning i got 82 %!!
Sent from my LG-P500 using xda app-developers app

nomancoolboy said:
I am using p500 from one and half years and i use it heavily so i have to charge it every day.
Click to expand...
Click to collapse
I think it's "normal" to charge it every day!! if you use it!! i charge it at least one time a day..

Lithium battery's do last a long time but they do loose there charge and become weak. After a year and a half I would defiantly consider buying a new battery. I wouldn't recommend the cheap $3.00 battery's but I would look on eBay or amazon and find a stock o.e.m battery. Brand battery's are more expensive but last probably 3-5 times longer then cheap battery's. I've read and heard that lithium battery's are not suppose to get hot but they can get warm, if the battery gets hot then it can destroy the battery and won't hold a charge as long as it should.
It also depends on what ROM you are running and what applications you are running, all that can add up and drain your battery fast. I would change a battery on a phone about 5-7 months or maybe even up to a year. Depends on your budget and what you can afford. hope this helps
Sent from my Nexus 7 using Tapatalk 2

myawan said:
A Lithium-ion battery has normally 400-1200 charging cycles (Ref. Wiki).
Couple of things that shorten life span of a battery:
1) Complete discharging, it is recommended not to go below 20%
2) High temperature which implies that if you OC too much your device will heat up and battery life shortened
3) If you consume 50% of your device battery on day 1, recharge to 100% at night, and do the same thing on day 2, then you would have just finished up one charge cycle of its battery life. Constantly recharging a lithium ion battery does not shorten the battery life more than normal usage would. Hence constantly recharging a lithium ion battery does not shorten the battery life more than normal usage would. Avoid letting it sit on empty for too long; instead, keep it charged-up if you can. (REF.)
Click to expand...
Click to collapse
Lg p500 battery have only 500 cycle times of life .
Btw,try to flash stock/gsnap 2.2 rom.
Sent from my LG-P500 using xda premium

My battery behaves in a funny way. With moderate use it dissipates very fast. and then if I keep screen off for more than 10 mins then my battery starts regenerating automatically(5-7%)
Click to expand...
Click to collapse
Reset battery stats in recovery.
-- Sent from my TouchPad using Communities

How do you handle your battery on a new phone?

Just curious how you handle this, because everybody says something different:
First use: completely charge the battery and then complete discharge, or first complete discharge and the full charge?
I also remember someone telling me that you shouldn't let your battery run completely empty, is that true?
Sent from my Nexus 4 using xda app-developers app

RotasOpera said:
Just curious how you handle this, because everybody says something different:
First use: completely charge the battery and then complete discharge, or first complete discharge and the full charge?
I also remember someone telling me that you shouldn't let your battery run completely empty, is that true?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
just charge it when it needs it, dont worry about what % its at, and dont worry about running them right down... the phone will power down before it gets to a dangerous level for the battery.
dont leave it plugged in all the time when its sat at 100, dont leave it down at 0 and just forget about it for weeks on end...
thats all you need to know
---------- Post added at 12:49 AM ---------- Previous post was at 12:43 AM ----------
in fact... read here, and note the bit about wireless charging! http://gizmodo.com/how-to-take-care-of-your-smartphone-battery-the-right-w-513217256

Just enjoy your phone. Don't make it so difficult.
Sent from my AOSP on Mako

mitchdickson said:
Just enjoy your phone. Don't make it so difficult.
Sent from my AOSP on Mako
Click to expand...
Click to collapse
THIS IS XDA...
I suggest you lower your brightness to 0%, turn off the useless 3 cores, underclock to 100mhz, undervolt to 0.1v, turn off wifi/data/bt and be on airplane mode all the time and enjoy your month long battery life.

peachpuff said:
THIS IS XDA...
I suggest you lower your brightness to 0%, turn off the useless 3 cores, underclock to 100mhz, undervolt to 0.1v, turn off wifi/data/bt and be on airplane mode all the time and enjoy your month long battery life.
Click to expand...
Click to collapse
Rofl
Sent from my Nexus 4

dannstarr said:
...
[/COLOR]in fact... read here, and note the bit about wireless charging! http://gizmodo.com/how-to-take-care-of-your-smartphone-battery-the-right-w-513217256
Click to expand...
Click to collapse
I don't buy the bit about wireless charging. I've used my Nexus 4 with an LG wireless charger daily for almost a year now and haven't noticed any side effects with battery drain or overheating. In fact, I'd argue that the Nexus 4 and my Nexus 7 get hotter when plugged in than they do on the wireless charger. I have absolutely no reservations about using the Nexus 5 on my LG wireless charger when it arrives this week.

RotasOpera said:
Just curious how you handle this, because everybody says something different:
First use: completely charge the battery and then complete discharge, or first complete discharge and the full charge?
I also remember someone telling me that you shouldn't let your battery run completely empty, is that true?
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Well the charge and discharge isn't necessary, IIRC that's only for older battery technologies like Ni-Cd batteries (Nickel-Cadmium). On the other side, you probably shouldn't let it discharge all the way since these are Li-Po and it could shorten their lifespan (apparently).

I just plug mine in whenever I'm near a charger.
I'm at work at my desk... its plugged into the charger.
I'm in my car... its plugged into the charger.
I'm at my girls house... its plugged into the charger.
I'm at home replying to xda / android central posts... its plugged into the charger.
This is what I've done with every phone I've had. I only had issues with one battery. I used to have sprint and I had the Samsung Galaxy S2 Epic 4g Touch. After about 8 months the battery got fat (they said it was called a swollen battery at the sprint store) and it kept turning off. They gave me a new battery at the sprint store and I continued with my routine above and never had any other issues with it or any other phones.

drx895 said:
Well the charge and discharge isn't necessary, IIRC that's only for older battery technologies like Ni-Cd batteries (Nickel-Cadmium). On the other side, you probably shouldn't let it discharge all the way since these are Li-Po and it could shorten their lifespan (apparently).
Click to expand...
Click to collapse
this is right on both accounts. you dont need to discharge it all the way, and doing so will reduce its life a little. i recently read about lithium poly batteries and the particular blog i was reading talked about running the battery down to 20% then charging it to 80%
i think when i first get the device i will use it down to 0%, charge it up to 100% uninterrupted and then hopefully keep it within that 20/80 range and probably doing a 0-100 refresh on the first of every month

If you guys want to read some in depth material on charging lithium batteries I would recommend reading this. Very informative.

dannstarr said:
dont leave it plugged in all the time when its sat at 100
Click to expand...
Click to collapse
That's actually the concerning part when I do overnight charging, it's sat at 100 for quite a while!

Salty Wagyu said:
That's actually the concerning part when I do overnight charging, it's sat at 100 for quite a while!
Click to expand...
Click to collapse
It's fine. Phone manufacturers know that people charge their phones overnight. That's why there is a trickle charge mechanism built into all phones nowadays.

u have to calibrate the battery too

Over the last month I've had somewhat of a binge of buying phones from Amazon and returning them for one reason or another and I've noticed that the first 1-3 days of phone ownership are usually the toughest on the phone / battery.
I've owned over the last 2 months (in order):
- S4
- HTC One (x3 as 2 were faulty out the box)
- LG G2
- S4
- N5
I've decided on the N5 as being the best for a number of reasons, but my favourite is price.
I havn't worked out whether it's a combination of new phone = more usage or new phone = requires battery calibration. But the N5 is the only device out the major players that actually made it through day 2 (the day after it came out the box) without a charge midway, infact it's ONLY JUST gone on the charger after some 28 hours of moderate (3 1/2 hours screen on) usage.
My gut feeling is that once you're out the first week just use the damn thing, but the first few charges can make a difference to how quickly the battery feels calibrated. My N5 came with 50% charge out the box, I ran it down to 0% and topped up charge as much as I could the first day. Once I got home I once more let it 0% and then did a full 0-100% recharge. Then my 28 hour experiment started and now I'll just use it as normal, and not worry.

I keep brightness at 50% to enjoy this beauty and I do not give a single **** about the battery.

Charge battery between 20% - 80%
Do not use phone while charging
Unplug charger when battery full

[Q] Any way to limit charge to 90% or 85% ?

I know for a fact that Li-Ion Batteries will last longer if kept charged under their full capacity.
I tried to find a 3rd party app for this but all I can find are "battery extenders"...
I read that Galaxy S could do it, would it be possible for falcon ?
I wouldn't mind charging 90% of max capacity since I never go below 40%. It is healthier to keep your battery between 40 and 80% charge all the time to reduce unwanted reactions that degrade the Li-Ion compound.

You have no option except to manually unplug the charger when it reaches 90%.
There is no way a device can resist the current flowing into it through the same port it accepts the current, AFAIK.
Sent from my XT1033 using XDA Premium 4 mobile app

I dont think theres any app that can do that. What i recommend is that use a battery app that alerts you when you reach a certain percentage.

dewd!
Why the hell you think that you'll ever notice a difference in battery life span if you actually really only charge it to 90%? That's as much as true as it being wrong. You should start reading real books made of paper instead of reading the internetz-for-randoms, srsly.
Look it that way, your battery life span in dependant way more on how the battery is drained/charged, than to how much of its capacity in being recharged.You need to use that very same battery for at least 10 years to actually see a difference in life span, due to charging it to 90% instead of 100%....... and then again, you'll need a vast sample of batteries in lab conditions to even be able to tell if the difference is actually caused by this or that.
Use your battery as a normal user, it will last you probably more than you'll actually will own your moto g.
Also the phone charging circuitry limits the current to ~200mA/h after the battery is charged up to 90%.