Database Users

Battery overcharge ?

What happens if I leave my battery charging over night and I don't unplug the charger once my phone pops up the message telling me to do so. Will my battery overcharge and fail? Or its out safe to leave it plugged on once charging is done?
Sent from my SGH-T959 using XDA App

mystycs said:
What happens if I leave my battery charging over night and I don't unplug the charger once my phone pops up the message telling me to do so. Will my battery overcharge and fail? Or its out safe to leave it plugged on once charging is done?
Sent from my SGH-T959 using XDA App
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Your phone will be fine, there are fail safes in place to prevent over charge (and fire/explosion). Its just a "convenient" notification to let you know the phone is done charging.
On a separate but related issue, I don't suggest leaving it charge more than 10 hours at a time, since the battery keeps topping off the charge, and in my experience this degrades batteries a bit faster.
Sent from my SGH-T959 using XDA App

Your battery will be fine. Just don't do it every night and you will be good.

Aphotix said:
Your phone will be fine, there are fail safes in place to prevent over charge (and fire/explosion). Its just a "convenient" notification to let you know the phone is done charging.
On a separate but related issue, I don't suggest leaving it charge more than 10 hours at a time, since the battery keeps topping off the charge, and in my experience this degrades batteries a bit faster.
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this.
Constant topping up will shorten the battery life. Not something to be annal about but don't do it too often. It also does not mean you have to fully drain your battery before charging, nor that you have to set an alarm so you take it off charge as soon as it read full.

Wait, so I should not charge my phone en route from work to home? About a 30 minute drive... not enough to fully charge the phone, just enough so it doesn't die before I go to bed.
I thought batteries did not have "memory" and that you could charge them however.... is there a good source to read?

Constant topping up will shorten battery life?
Care to back up that statement with some sources?
Heat kills Lithium based batteries.
A quick rate of charge or discharge creates heat.
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
(From the article)
The battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible.
should be balanced with this (from the article as well)
batteries with fuel gauges exhibit what engineers refer to as "digital memory". Here is the reason: Short discharges with subsequent recharges do not provide the periodic calibration needed to synchronize the fuel gauge with the battery's state-of-charge. A deliberate full discharge and recharge every 30 charges corrects this problem.
My recommendation is to keep the battery as full as possible at all times and do a full calibration cycle once a month. Done.
If you want the battery to last longer stretch the calibration to once every two months... However the phone will be obsolete before noticeable shortening of the battery life from doing 30 day calibrations. PLUS THE BATTERY IS REPLACEABLE ANYWAY. So, honestly, who cares?

mystycs said:
What happens if I leave my battery charging over night and I don't unplug the charger once my phone pops up the message telling me to do so. Will my battery overcharge and fail? Or its out safe to leave it plugged on once charging is done?
Sent from my SGH-T959 using XDA App
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If your battery overcharges and fails, your battery is a danger to you and everyone around you anyway; no matter what charging methods you use. A properly working lithium ion battery cannot be overcharged.
I suggest reading up on how float charging works.

I plugged the phone and go to bed everynight

Emama said:
I plugged the phone and go to bed everynight
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This is normally what I do, so it charges 5-7 hours a day, I don't normally kill it during the day, but it does get pretty low

novafluxx said:
This is normally what I do, so it charges 5-7 hours a day, I don't normally kill it during the day, but it does get pretty low
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So u mean plugged in overnight may kill the battery faster?

Emama said:
So u mean plugged in overnight may kill the battery faster?
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of course. if you always do it.
Sent from my SGH-T959 using XDA App

My phone is samsung j7 prime ....
Yesterday i charge the divise over night ...
Does it will effect my battery?

First time charge

Hi all im about to pick up a n7 and join the club ..
But i'd like to know the first time charging pattern ? If i remember right i have to fully discharge to 0% and then overnight charge ?
Oh and while were at it how long one full charge takes ?
Thanks.
Sent From My Sexy Sensation.

With the new lipo batteries you should AVOID full discharges. Instead, charge the device to 100% before using, discharge to about 5%, turn off, then charge to full while off. That should condition and calibrate the battery effectively.
Also, a charge takes roughly three hours to full for me.
Sent from my Nexus 7 using xda premium

Manufacture doesn't recommend full discharge, they just recommend a full charge before it is completely discharged. What I did was discharged through use to about 30% (out of box it was 55%) then did a full charge.
As far as how long it takes charge, it really does depend on your power. Every house and every location get its power differently really. It also depends if you are using the stock provided charger as you're supposed to, if you're using usb from the computer, whether you are going through a power converter/ u p s or even if you are using a non standard power output to usb. On know my full charge was about 2.5 hrs from the 30 percent to 100 percent, using the stock charger to outlet through uninterruptible power supply which has a built in power converter/balancer because my electricity is crap ( unincorporated area, old house, old wiring ).
Really though you don't have to worry too much about lithium ion batteries. You really don't want to give it a complete discharge, based on the existing evidence. Apparently this causes a relatively significant shock to the actual chemicals the power the battery. However many people say you do not want to completely charge the battery either, but most battery service management programs, the actual firmware that keeps the batteries going, will stop a charge at 99 percent tell you it is 100 percent and no longer charge above that for this specific reason.
if you look around to the community, many people recommend that you fully discharge battery, after using a program like battery calibration https://play.google.com/store/apps/details?id=com.nema.batterycalibration and then charge fully to 100 percent anytime you change ROM so the same could be said with a brand new stock unit. Also let's be honest, your device is going to last 2 maybe 3 years. How much damage can you really do but discharging in a few times in the time? also the batteries aren't all that expensive so even if it does significant damage it is still repairable?
Sent from my Nexus 7 using xda app-developers app

Thanks guys and to be specific for the charging time part i will be using stock charger and not usb so just a quick recap charge to 100% discharge to 5% and recharge to full ?
And if it takes me 4 hours id be satisfied because my sensation that has 1900mah takes about that much time and the n7 is more then double of it ..
Can't wait to pickup this beast hope ill get a perfect unit
Sent From My Sexy Sensation.

shahkam said:
Thanks guys and to be specific for the charging time part i will be using stock charger and not usb so just a quick recap charge to 100% discharge to 5% and recharge to full ?
And if it takes me 4 hours id be satisfied because my sensation that has 1900mah takes about that much time and the n7 is more then double of it ..
Can't wait to pickup this beast hope ill get a perfect unit
Sent From My Sexy Sensation.
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Use it to 5 percent charge, then recharge to 100 percent
Sent from my rooted Nexus 7 via xda-developers app.

Just reiceved my N7 today. It only had about 5% charge. I've had it on the charger for 5 hours and its only at 75%. This doesn't seem normal.

[Q] Brand new N4 battery

Hey folks I'm wondering about my phone, it's brand new but i read around that there some troubles with the red light of death, so i need to known what's the better strategy for my never turned on battery, could be better of i recharge it completely or could be better of i discharge it and then recharge to 100%?
Thanks
✉Sent from my GT-I9300 using CM10.1

No need to discharge it. It's even better never let it drain completely.
Sent from my Nexus 4 using xda premium

Yeah, the older batteries, you wouldn't want to keep fully charged very long and you'd always want to fully drain but with the new batteries, it doesn't really matter that much. What is recommended is, as Unjustable said, you don't want to fully drain it.

Also don't have a charging routine.
Ex. You never charge your phone til it gets to 15%
You have to change it up a bit.
If your phones at 50% charge it. If its at 10% charge it. If its at 70% charge it. You don't wanna charge it at the same percentage all the time.
Sent from my Nexus 4 using xda premium

bodom_hc said:
Also don't have a charging routine.
Ex. You never charge your phone til it gets to 15%
You have to change it up a bit.
If your phones at 50% charge it. If its at 10% charge it. If its at 70% charge it. You don't wanna charge it at the same percentage all the time.
Sent from my Nexus 4 using xda premium
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Why is that?
I always used to charge my phone when it reached below 10% and battery stats were perfect. Just recently I started charging WHENEVER I felt like.. be it at 30%.....50% or even 90%. And now since 3 days my phone automatically reaches to 100% charge from..lets say..85% etc. Even after restart it shows 100%.
Moreover, when I unplug and use it for a min, it drops a few percentage and suddenly gets back to 100% and then starts draining.
Dont know whats wrong.

bodom_hc said:
Also don't have a charging routine.
Ex. You never charge your phone til it gets to 15%
You have to change it up a bit.
If your phones at 50% charge it. If its at 10% charge it. If its at 70% charge it. You don't wanna charge it at the same percentage all the time.
Sent from my Nexus 4 using xda premium
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i've already heard this, this should be good for the battery's elasticity

I fully drain mine every day..(until dies).. Also Google recommendation is drain it after you get your phone....
I've never had an issue doing it this way.
Sent from my Nexus 4

myturbo1 said:
I fully drain mine every day..(until dies).. Also Google recommendation is drain it after you get your phone....
I've never had an issue doing it this way.
Sent from my Nexus 4
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That you don't have any issues is because of the battery is protected by circuitry that prevents over-charge and deep-discharge.
As i stated before it's better to not fully discharge.
Also Google didn't recommend fully drain it when u get it..

myturbo1 said:
I fully drain mine every day..(until dies).. Also Google recommendation is drain it after you get your phone....
I've never had an issue doing it this way.
Sent from my Nexus 4
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Where you seen it? Are you sure?
✉Sent from my GT-I9300 using CM10.1

I dont think fully draining the battery is good for its life span. I usually let it discharge until 7% and haven't had any problems.
Sent from my Nexus 4

Do you charge 8 Hours for your first charge

Hi guys! Just got this baby today and battery is dying soon! Just wondering if you guys let it charge overnight for 8 hours on the first charge?

It'll take 3 or 4 charge cycles to reach full capacity. And by soon, how many hours of screen on time are you talking about?
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veeman said:
It'll take 3 or 4 charge cycles to reach full capacity. And by soon, how many hours of screen on time are you talking about?
Sent from my Nexus 7 using xda app-developers app
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Well I was just asking if you guys charge it straight for 8 hours on it's first charge lol :X

Electronics inside stops charging once the battery is full. You can leave it on forever it won't make a difference.
You can charge it while turned off (maybe one or 2% more will go in) but other than that don't worry about it.
But yes, first couple of cycles are aweful, use it for a week or two, then the true battery capacity will reveal itself.
Also you might wanna discharge it to auto-shutdown and charge it up to 100% uninterrupted for best results.
To answer your question quickly: no, I only charge new devices until they're full unless I leave them overnight.
If you do some math: 4325mAh battery being charged at rate 2A (that's the official charger right?) theoretically it should take 2h10m to fully charge the battery. Of course there are losses and everything but it shouldnt take more then 3 hours.

Frostyeo said:
Well I was just asking if you guys charge it straight for 8 hours on it's first charge lol :X
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I just leave it on the charger overnight. Anywhere from 6-10 hours.

1st charging time

Just got my OP5 in hand, how long does it need to charge the phone for the very 1st time? As Dash charge can charge the phone to 100% in 30min, do I still need to keep the phone on charge for an extended period of time like b4? Cheers

Hi,
Dash charge can not charge the phone to 100% in 30min
In 30 min you can charge between 40% and 60% depending on what is running on your phone :
http://www.phonearena.com/news/OneP...and-the-Google-Pixel-still-crazy-fast_id95170

Thx. Havent tried it. So for the very first time, for previous phones I let it charge for a few hours b4 actually used them. I should do the same right? As the battery is with the same structure. Cheers

lou2s said:
Just got my OP5 in hand, how long does it need to charge the phone for the very 1st time? As Dash charge can charge the phone to 100% in 30min, do I still need to keep the phone on charge for an extended period of time like b4? Cheers
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I set mine up then put it on charge, was on 44% and then was at 96 about 35 minutes later

lou2s said:
Thx. Havent tried it. So for the very first time, for previous phones I let it charge for a few hours b4 actually used them. I should do the same right? As the battery is with the same structure. Cheers
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Hey,
I don't know definitively but I don't think so. I think battery technology in this respect has moved a long way so you don't have to charge it to full before you first use it, nevermind charging it to full and then over charging for multiple hours.
In fact, phones these days cut off charging and then trickle charge when the battery is full to maintain charge but not try and charge an already full battery thus causing damage.
Bottom line is I would suggest you wait till it gets to 100% before using it but don't need to wait any longer after that.
Sent from my HTC 10 using XDA Labs

lou2s said:
Just got my OP5 in hand, how long does it need to charge the phone for the very 1st time? As Dash charge can charge the phone to 100% in 30min, do I still need to keep the phone on charge for an extended period of time like b4? Cheers
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With modern Lithium ION/POL batteries this is no longer a requirement. In fact the hardware will make it stop from overcharging or it could become a hazard. In fact, Li-ION batteries are best kept between 20% and 80% for longevity. if you plan to store Lithium batteries store them at around 50% charge. so your old phone keep it stored at around 50%. this is also how all laptops and phones are shipped these days. They are shipped with approximately 50% battery charge for any hazard and also for longevity should it have to be stored for a long period of time.