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How bad is overcharging?

Exactly how much worse would my battery get if I keep it plugged in the whole night(6~8hours)?
I tried to use my phone where I'll have it fully charged when I go to sleep so I plug it out. But sometimes my battery is at about 30% so I just charge it overnight.
How bad is this? Should I stop doing this?
Sent from my phone

the charging system WONT overcharge your battery.
it charges to 100%
turns off lets the phone use battery power to 95%
then charges again.
there is NO PHONE, NO CHARGER that would over charge its battery, that would just be self destruction.

Sweet, always wondered about that
Sent from my SAMSUNG-SGH-I897 using XDA App

:
Trusselo said:
the charging system WONT overcharge your battery.
it charges to 100%
turns off lets the phone use battery power to 95%
then charges again.
there is NO PHONE, NO CHARGER that would over charge its battery, that would just be self destruction.
Click to expand...
Click to collapse
Really? So it doesn't matter?
Anyone thanks
Sent from my phone

While it is impossible to overcharge your batter...not even sure what that means but the battery can not hold more charge then it is made to hold.
The only downside to leaving the phone on the charger overnight is that it will over time degrade the capacity of the battery. The way most modern phone batteries function they gradually loose capacity over time. This lose of capacity is accelerated the when the battery is at a greater charge level.

crystalhand said:
While it is impossible to overcharge your batter...not even sure what that means but the battery can not hold more charge then it is made to hold.
The only downside to leaving the phone on the charger overnight is that it will over time degrade the capacity of the battery. The way most modern phone batteries function they gradually loose capacity over time. This lose of capacity is accelerated the when the battery is at a greater charge level.
Click to expand...
Click to collapse
I'm sorry..
My overcharging meant that I charge it for a long time.... sorry about that
Sent from my phone

Like Trusselo said, you can't overcharge it. There's a smart charger built in, that charges full and drops it back to extend battery life.
If you watch the supply with an ammeter, you'll see the current slowly decrease as it gets closer to full. Then when the "Battery is Full" notification appears, the current will immediately drop to 0 indicating that the charger has completed and it's running on battery. At that point it resets the stats to 100%. After it consumes about 5% (actually something like 4100mV) it will switch back to external power and only monitor the battery.

Oh strange. Nexus one does it different. When fully charged it runs off the AC current if still plugged in and battery remains charged

CuriousTech said:
Like Trusselo said, you can't overcharge it. There's a smart charger built in, that charges full and drops it back to extend battery life.
If you watch the supply with an ammeter, you'll see the current slowly decrease as it gets closer to full. Then when the "Battery is Full" notification appears, the current will immediately drop to 0 indicating that the charger has completed and it's running on battery. At that point it resets the stats to 100%. After it consumes about 5% (actually something like 4100mV) it will switch back to external power and only monitor the battery.
Click to expand...
Click to collapse
So conclusion is
Charging it overnight will decrease my battery life so I shouldn't do it?
Sent from my phone

syl0n said:
Oh strange. Nexus one does it different. When fully charged it runs off the AC current if still plugged in and battery remains charged
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Click to collapse
Interesting since that would be bad for the battery. What are your methods for determining this?

bluemoon1221 said:
So conclusion is
Charging it overnight will decrease my battery life so I shouldn't do it?
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Click to collapse
No. It's not charging overnight. The phone stops charging when it's full.
Sigh...
To get a better understanding of why your phone will never overcharge the battery go to youtube and type in "overcharging li-ion" or better "overcharging lipo" for some entertaining videos.

CuriousTech said:
No. It's not charging overnight. The phone stops charging when it's full.
Sigh...
To get a better understanding of why your phone will never overcharge the battery go to youtube and type in "overcharging li-ion" or better "overcharging lipo" for some entertaining videos.
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Click to collapse
That's what I meant.... I'm saying will keeping it plugged in for 7 hours decrease my battery performance? .......
Sent from my phone

Okay then. I know these are lead, mercury and cadmium free but it might be too late.
You should do what gives you peace of mind, and be sure to read and follow all safety precautions for the products you own.

bluemoon1221 said:
That's what I meant.... I'm saying will keeping it plugged in for 7 hours decrease my battery performance? .......
Sent from my phone
Click to expand...
Click to collapse
NO!!!!!!!!!!!!
everyone is trying to tell you NO!!
keeping it charging over night will do NO dammage and will not hurt performance.

I've always wondered about this.. thanks!
Sent from my SAMSUNG-SGH-I897 using XDA Premium App

Trusselo said:
NO!!!!!!!!!!!!
everyone is trying to tell you NO!!
keeping it charging over night will do NO dammage and will not hurt performance.
Click to expand...
Click to collapse
Up in one of the reply by crystalhand
He said that it will degrade the capacity of the battery.??
Am I interpreting this the wrong way? Or is he wrong?
Sent from my phone

[Q] Any disadvantages of frequent charging?

Are there any disadvantages to having the phone plugged in a frequently as possible (e.g. charging over night, car charging, charging while at work)? I have been favoring 897 leaks over 9000 roms mainly because of battery life. I have been a fan of Apex roms and now that A11 is out I want to give it a try but I know I won't get the same battery life as Illuminance. Could I damage my Captivate from frequent charging?

Now i could be wrong, but frequently charging *may* reduce the life of the battery....i believe every batter has a certain amount of "charging cycles" it can have before the battery begins to lose charge quicker...again, i could be wrong..

True, batteries do have a certain account of charge cycles, but a charge cycle is a 100% drain and back up again.
So down to 50 then charge, 75 charge, 75 charge, is only 1 full cycle.
So whether you wait to charge til it's dead enough to not run the phone (it actually shuts off before true 0% to save the life of the battery) or you grab some spare juice when you can, your battery should have about the same life span.

studacris said:
True, batteries do have a certain account of charge cycles, but a charge cycle is a 100% drain and back up again.
So down to 50 then charge, 75 charge, 75 charge, is only 1 full cycle.
So whether you wait to charge til it's dread enough to not run the phone (shuts off before true 0% to save the life of the battery) or you grab some spare juice when you can, you're battery should have about the same life span.
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Ya this is true but I find I that I get much better battery life if I do a bump charge. Ive charged to 100% on the phone screen, turned off the phone, plugged the charger back in, and had it charge for another half hour until it hit 100%. So I dont know what it is about charging in that fashion that works for me but it really seems to help. I also am pretty good about cycling my battery 0-100 100-0 so that may help.

capocaccia said:
Ya this is true but I find I that I get much better battery life if I do a bump charge. Ive charged to 100% on the phone screen, turned off the phone, plugged the charger back in, and had it charge for another half hour until it hit 100%. So I dont know what it is about charging in that fashion that works for me but it really seems to help. I also am pretty good about cycling my battery 0-100 100-0 so that may help.
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Click to collapse
bump charging will kill battery life long term..
Also, be careful with car chargers. Some of them are designed to charge faster which will also shorten the over all life of the battery.

Lithium batteries don't like to be drained fully. The best time to charge is 30-40%. Also lithium doesn't like the "fast" charge. Basically be easy on the drain/charge/level and it will last longer.
The 1/2 hour you're talking about is because the last 5-10% takes the longest. You can actually charge from ~40%-80%+ very shortly due to the way Lithium works.

As I said above, the phone shuts off before the battery reaches 0%. You notice it still has enough power to run the charging animations even though its too dead to boot.
the phone also stops charging at 100% let drain to 95 and back up, to prevent overcharging.
both are to save the lifespan of the battery.

Discharging below three volts will cause damage. Charging over four point two volts will cause damage. Charging at a greater rate than one C will cause damage. One C is equal to the capacity of the cell. Our stockers at 1500mAh should not be charged at a rate greater than one point five amps. I believe the stock charger outputs 800mAh, or point eight amps. Any damage to the cell will definitely shorten life. The more you use a battery the faster it will die, true with any type. Hope this helps someone.
Sent from my SAMSUNG-SGH-I897 using XDA App

I don't really see this as a matter of choice. My phone dies daily, so I have to charge it daily; I have to bite whatever happens with it anyway. If it helps, I got my phone on launch and have been using the same battery through my warranty replacements. My battery maxes out at roughly 15 hours of moderate use, 20 of light use.

frequent charging reduce battery life so it is better to charge when ur battery is left with 15% or below and charge it completly

prostar said:
Lithium batteries don't like to be drained fully. The best time to charge is 30-40%. Also lithium doesn't like the "fast" charge. Basically be easy on the drain/charge/level and it will last longer.
The 1/2 hour you're talking about is because the last 5-10% takes the longest. You can actually charge from ~40%-80%+ very shortly due to the way Lithium works.
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+1
This is very true of Lithium ion batteries. They like to be kept topped up constantly. Not letting it go to 0% consantly helps. This is very different from NiMH or NiCd, where the "memory" effect requires you to completely discharge the battery before next charge.
The best way is to just put the phone on charger whenever you are not using it - if ever - just plug it in and let it sit till you use next time.....

FFS how many times must I say it? THE BATTERY NEVER REACHES 0%!!!
There is ALWAYS some amount of charge even when the phone won't come on.

chappatti said:
+1
This is very true of Lithium ion batteries. They like to be kept topped up constantly. Not letting it go to 0% consantly helps. This is very different from NiMH or NiCd, where the "memory" effect requires you to completely discharge the battery before next charge.
The best way is to just put the phone on charger whenever you are not using it - if ever - just plug it in and let it sit till you use next time.....
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Click to collapse
interesting topic and even more this reply. One new thing I leant on my learning curve, I must say.
Sent from my GT-I9000 using xda premium

studacris said:
FFS how many times must I say it? THE BATTERY NEVER REACHES 0%!!!
There is ALWAYS some amount of charge even when the phone won't come on.
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Click to collapse
Very true. If you discharge a lithium cell below three volts, you run the risk of it catching fire or exploding.
Should've mentioned earlier that as the battery degrades, it loses capacity. This is what causes them to seem they're not "lasting as long" or "draining faster".
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Tips on keeping the N7 battery healthy

Whats your way of keeping your nexus 7 battery healthy? I wanna keep it as healthy as I can for as long as possible. Nothing irritates me more than having a battery lose its charge faster and faster every day. Just to be clear im not asking how to prolong battery usage between charges; I'm asking how to keep it from losing its charge quicker and quicker when the power usage is relatively the same. One thing I do know is once it the battery hits 100% to take it off the charger. One thing i have heard is try not to let the battery dip below 50% and rarely let it completely discharge but I have also heard to ALWAYS let it die out by completely discharging. Feel free to add to the myths, folklore but preferably facts on how to keep the battery healthy and holding its charge very well

N7 has Lithium polymer battery, right?
Well then read about it https://en.wikipedia.org/wiki/Lithium_polymer_battery
But from what I heard: rather charge it then let it drain below 30%, don't let it charge too long, and so on - probably the same stuff you heard or read yourself
but that's something that upsets me: no chance to replace the battery. Used my DHD for 2 years and after those 2 years the battery was just ****ty. Replaced it, works like a charme. On N7 or TF300T there's no chance to replace the battery. Right now I'm using TF300T very often when I'm not at home, so even with dock and tablet it'll most probably go below 20%...well if that's bad for my battery, then I don't know what to do if it doesn't last an entire day :-/ (though that'll take some time)

Certainly I wouldn't let the Nexus battery completely drain but maybe down to 5 % then fully charge
Sent from my Nexus 7 using xda app-developers app

l33ch0r said:
N7 has Lithium polymer battery, right?
Well then read about it https://en.wikipedia.org/wiki/Lithium_polymer_battery
But from what I heard: rather charge it then let it drain below 30%, don't let it charge too long, and so on - probably the same stuff you heard or read yourself
but that's something that upsets me: no chance to replace the battery. Used my DHD for 2 years and after those 2 years the battery was just ****ty. Replaced it, works like a charme. On N7 or TF300T there's no chance to replace the battery. Right now I'm using TF300T very often when I'm not at home, so even with dock and tablet it'll most probably go below 20%...well if that's bad for my battery, then I don't know what to do if it doesn't last an entire day :-/ (though that'll take some time)
Click to expand...
Click to collapse
You can change the battery on the nexus 7. Its actually relatively easy and simple to do so. I havent had the need to replace it but I did have to disconnect it. Just pop off the back with your choice of apparatus. I used a small flat head that i could wedge between the sides but a guitar pick is another popular choice. Then just disconnect the wire and take the battery out! no screws just slight pressure holding it in. right here is a guide with pictures showing it step by step.

What I would do is time my charges. In my experience, my Nexus 7 gets fully charged in 2 and a half hours from 20% battery. I then take it out immediately so that in won't get hot(sometimes it does, and also to save energy.:good And also, if after 3 days my battery is still 50% or above, I drain it to 20% then charge since Li-ions tend to not want to get not drained often.xD

Charge early and often and keep out of extreme temperatures. It boils down to that.
If you can, charge it nightly. Try to avoid discharging below 20%.
And a little myth busting... There is no need for you to manage its charging cycle, it will do that itself. Charging a LiIon/LiPoly battery partially is NOT a "charge cycle".
If you're actively using your Nexus 7, just charge it as often as is reasonable, nightly should be just fine. If you're NOT using it for an extended period of time, discharge it to 50%, turn it completely off and store it in a cool (20c/70f range) location.

AW: Tips on keeping the N7 battery healthy
?! i was told i should drain it under 20% more often -.- oh well, my battery is going to be the first dying
Sent from my Galaxy Nexus using xda premium

The battery's are $20 for a new one so as long as it lasts a year I don't mind buying another one. In another question has any one bought a replacement battery yet? And if so does the charge last about the same as stock?
Sign up to Dropbox using my signature and we both get an extra 500megs free http://db.tt/YZjXmjTT

fushla said:
?! i was told i should drain it under 20% more often -.- oh well, my battery is going to be the first dying
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Click to collapse
Nope, that was NiCad information, LONG LONG AGO. LiIon/LiPo, charge early and often.

Everything you could need to know:
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
Sent from my N7 using XDA Premium
Dirty AOKP 3.5 <&> m-kernel+ a35 (t11)

My advice : Charge it when it's between 20%-30%. That's the ideal charge point. Any lower and you're just damaging the battery and any higher is just a waste. As for immediately plugging it out once it hits 100% is utter bull. You see, these modern day batteries found in most phones/tabs have their own resistors which decide how much power enters the battery or if it should enter at all. Once a battery hit's 100%, the resistors kick in and block all incoming power. The "discharging" many believe to happen if we over charge beyond 100% doesn't exist. What happens if you leave a phone or tab alone idly ? It discharges like always. Same thing here, which is why you see your battery bouncing from 100% down to 97%. When that happens, the resistors will allow power back in and thus charging it back to 100%. So you can leave it charging all night and not having to worry about it going beyond 100%. It'll get it's own sh!t together .
So bottom line :
1. Charge when it hits 30%-20%.
2. Don't discharge it (0%) and back to 100%. It doesn't work on modern batts.
3. Don't worry about pulling out when it touches 100% immediately.
Enjoy your tab

RohinZaraki said:
My advice : Charge it when it's between 20%-30%. That's the ideal charge point. Any lower and you're just damaging the battery and any higher is just a waste. As for immediately plugging it out once it hits 100% is utter bull. You see, these modern day batteries found in most phones/tabs have their own resistors which decide how much power enters the battery or if it should enter at all. Once a battery hit's 100%, the resistors kick in and block all incoming power. The "discharging" many believe to happen if we over charge beyond 100% doesn't exist. What happens if you leave a phone or tab alone idly ? It discharges like always. Same thing here, which is why you see your battery bouncing from 100% down to 97%. When that happens, the resistors will allow power back in and thus charging it back to 100%. So you can leave it charging all night and not having to worry about it going beyond 100%. It'll get it's own sh!t together .
So bottom line :
1. Charge when it hits 30%-20%.
2. Don't discharge it (0%) and back to 100%. It doesn't work on modern batts.
3. Don't worry about pulling out when it touches 100% immediately.
Enjoy your tab
Click to expand...
Click to collapse
Thank you, you mythbusted almost every battery myth there is.
__________________
Sweet Devil >_<
GT-P3100 | Android 4.0.4 ICS | Sun Cellular
PM me if you need help

AW: Tips on keeping the N7 battery healthy
Okay.. Since I did everything wrong with charging...
Is it okay to reboot the device while charging? Or is it bad for my battery.. :/
Sent from my Nexus 7 using xda premium

fushla said:
Okay.. Since I did everything wrong with charging...
Is it okay to reboot the device while charging? Or is it bad for my battery.. :/
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
Nope. Reboot away. Remember, the only harmful thing you can do and see immediate effects are charging the battery in a very hot enviroment or if you charge it when the battery is 40-50 degrees celcius. It'll either swell up or it'll just catch on fire or explode.

[Q] Battery Memory

So, I'm nervous about the fact that I can't replace the battery on my ONE. So far every night I've been staying up late until the phone dies, then plugging it in, waiting til the light stops flashing, then powering it up to charge while on overnight.
Problem is, this phone has awesome battery life. Right now at 10.30pm, I'm sitting at 41%, and debating just leaving it unplugged all night.
So what's the deal with memory on these batteries? How much, say over a 2 yr span, will charging a non-drained battery shorten its lifespan or lessen its capacity?
Sent from my HTCONE using xda app-developers app

MadDogMaddux said:
So what's the deal with memory on these batteries? How much, say over a 2 yr span, will charging a non-drained battery shorten its lifespan or lessen its capacity?
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
Lithium ion batteries are awesome. They are lighter, smaller and do not suffer from "memory effect."
Do not drain then fully recharge this phone on a regular basis. That will accelerate capacitance loss. Keep it charged as much as possible, avoid fast charging, try to use your PC to charge it overnight. Do not leave it charging for too long (i.e. days on end). Though on board computers can refuse charging, it is best to stay on the safe side.
2 years, you will definitely notice a decrease in battery life, but by the time it becomes intolerable, you will have upgraded. I can almost guarantee that.
EDIT: Please add to/refute any statements I made if you have greater knowledge on this subject, people.

Thanks! Can you explain why using mr PC to charge is better?
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MadDogMaddux said:
Thanks! Can you explain why using mr PC to charge is better?
Sent from my HTCONE using xda app-developers app
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Click to collapse
Because it's a slower charge at a lower amp rating prolongs battery life by not boiling the cells
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customhdrider said:
Because it's a slower charge at a lower amp rating prolongs battery life by not boiling the cells
Sent from my HTCONE using xda premium
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Click to collapse
Gottit. Thanks!

No problem,glad I could shed some light on the subject
Sent from my HTCONE using xda premium

MadDogMaddux said:
So, I'm nervous about the fact that I can't replace the battery on my ONE. So far every night I've been staying up late until the phone dies, then plugging it in, waiting til the light stops flashing, then powering it up to charge while on overnight.
Problem is, this phone has awesome battery life. Right now at 10.30pm, I'm sitting at 41%, and debating just leaving it unplugged all night.
So what's the deal with memory on these batteries? How much, say over a 2 yr span, will charging a non-drained battery shorten its lifespan or lessen its capacity?
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
As was previously noted, what you're doing is actually the worst possible thing you can do to a lithium ion battery. In general, best practice is to keep your battery somewhere between 10%-95% charge whenever possible. Once a month, you should "cycle" your battery under 10% (but not fully drained) to keep everything in peak condition. If you're ever not going to use the phone for any length of time, best practice is to drain to 40% and store in a cool, dark area.
When you first get a new device, you do want to condition it by doing three to five (varies on the device) full charge/discharge cycles, but after that, once a month with a conditioning cycle will take care of things for you. And again, as was previously noted, it's not a great idea to leave your phone charging overnight because you can't always depend on the battery controller chip.
These newer cells are all rated to relatively high cycle lifetimes, so I wouldn't worry overmuch. At that point, capacity is supposed to start degrading, although naturally it's going to happen a bit earlier for any number of reasons. I'd be much more worried about avoiding heat though than overcharge.

I'm assuming charging it slowly would keep it slightly cooler than a wall socket and closer to room temp, the better.
There is probably some other reason, but I'm not the person to ask. you can do some independent research. :good:
Just charge your phone when it needs it and don't when it doesn't. Do that and you'll be good until you upgrade no problem.
EDIT: Oh, beat me to it... haha
EDIT: Also, does the 40% apply to phones? Mobile devices never really turn off, they just go into deep sleep, I'm told. I was going to say that too, but then I remembered this. Does the 40% rule apply to non-removable batteries?

sauprankul said:
I'm assuming charging it slowly would keep it slightly cooler than a wall socket and closer to room temp, the better.
There is probably some other reason, but I'm not the person to ask. you can do some independent research. :good:
Just charge your phone when it needs it and don't when it doesn't. Do that and you'll be good until you upgrade no problem.
EDIT: Oh, beat me to it... haha
EDIT: Also, does the 40% apply to phones? Mobile devices never really turn off, they just go into deep sleep, I'm told. I was going to say that too, but then I remembered this. Does the 40% rule apply to non-removable batteries?
Click to expand...
Click to collapse
It's a question of how much voltage you're chucking into the battery. If you use a low-voltage wall adapter it'll be the same as if you were charging from your PC.
The 40% rule applies to any battery, and they'll all discharge over time anyway (connected or no). If you shut your phone off, everything powers down except (if memory serves) what's necessary to run the internal clock. The impact that has should be pretty minimal (unless you're trying to bury your One for a thousand years, in which case...can't help you there).

Rirere said:
It's a question of how much voltage you're chucking into the battery. If you use a low-voltage wall adapter it'll be the same as if you were charging from your PC.
(unless you're trying to bury your One for a thousand years, in which case...can't help you there).
Click to expand...
Click to collapse
Who would buy a low voltage wall adapter?
And yes, I would like to bury my One safely for a thousand years, so when it is found by the generation of humadroids, they will see it and be amazed that a civilization so primitive could achieve such technological mastery.

sauprankul said:
Who would buy a low voltage wall adapter?
And yes, I would like to bury my One safely for a thousand years, so when it is found by the generation of humadroids, they will see it and be amazed that a civilization so primitive could achieve such technological mastery.
Click to expand...
Click to collapse
I don't know that I bought any, but I have a few lying around from yesteryear's gadgetry.
And at that point, why not launch it into space instead, a la HTC Nexus One?

So I use my phone as my alarm clock and also run the Relax and Sleep app all night. Otherwise I'd just plug it into my lappy throughout the day and not worry about it.
But that raises another question: running the phone overnight while charging it at the same time. Bad juju?
I plugged into my lappy last night around midnight, woke up this morning and had about 95% charge, rather than the usual 100%. I'm assuming this is the result of power output for Relax and Sleep cutting int power input from charging.
I've also been in the habit of leaving my EVO 4G plugged in while tethering. I assume this is also a bad plan?
Sent from my HTCONE using xda app-developers app

sauprankul said:
Lithium ion batteries are awesome. They are lighter, smaller and do not suffer from "memory effect."
Do not drain then fully recharge this phone on a regular basis. That will accelerate capacitance loss. Keep it charged as much as possible, avoid fast charging, try to use your PC to charge it overnight. Do not leave it charging for too long (i.e. days on end). Though on board computers can refuse charging, it is best to stay on the safe side.
2 years, you will definitely notice a decrease in battery life, but by the time it becomes intolerable, you will have upgraded. I can almost guarantee that.
EDIT: Please add to/refute any statements I made if you have greater knowledge on this subject, people.
Click to expand...
Click to collapse
MOST of this advice is 100% true.
The only part that is not correct information is the advice to not let it die. It is perfectly OK to do this as long as you don't deep discharge the battery... Example like let it die then not charge it for like a week or something.
The science behind this is the fact that lithium ion batteries actually have a nominal voltage operating range which is like 3.2 - 4.3 volts or something like that. Your device is designed to shut itself down when it gets to about 3.5... This is done to protect the battery from deep discharge cycles.
Letting it die is perfectly alright. Just make sure you charge it soon after.
Also, you don't need to use your PC to charge it. That is in no way necessary. Your device came with a wall charger for a reason...
There are safety features built into the kernel and cable to keep you from damaging the device during charge. Use the wall.. It is perfectly safe and faster / more practical.

MadDogMaddux said:
So I use my phone as my alarm clock and also run the Relax and Sleep app all night. Otherwise I'd just plug it into my lappy throughout the day and not worry about it.
But that raises another question: running the phone overnight while charging it at the same time. Bad juju?
I plugged into my lappy last night around midnight, woke up this morning and had about 95% charge, rather than the usual 100%. I'm assuming this is the result of power output for Relax and Sleep cutting int power input from charging.
I've also been in the habit of leaving my EVO 4G plugged in while tethering. I assume this is also a bad plan?
Sent from my HTCONE using xda app-developers app
Click to expand...
Click to collapse
Your battery will automatically cycle between 95%-99.9999% to prevent overcharge, so you're fine on this front. You probably just caught it on the low end of the cycle.
The issue with charging + tethering is that a phone draws more power when plugged in (ramping up processor, etc.), and tethering eats a lot of power. More importantly, both charging the battery and running the antennas for tethering generate a lot of heat. So long as you watch your battery temp (most good tethering apps will toss in a temperature gauge, although if you're using stock you'll need another solution), you should be fine, but heat is one of the fastest ways to kill a Li-ion battery.
Admiral Sir Manley Power said:
MOST of this advice is 100% true.
The only part that is not correct information is the advice to not let it die. It is perfectly OK to do this as long as you don't deep discharge the battery... Example like let it die then not charge it for like a week or something.
The science behind this is the fact that lithium ion batteries actually have a nominal voltage operating range which is like 3.2 - 4.3 volts or something like that. Your device is designed to shut itself down when it gets to about 3.5... This is done to protect the battery from deep discharge cycles.
Letting it die is perfectly alright. Just make sure you charge it soon after.
Also, you don't need to use your PC to charge it. That is in no way necessary. Your device came with a wall charger for a reason...
There are safety features built into the kernel and cable to keep you from damaging the device during charge. Use the wall.. It is perfectly safe and faster / more practical.
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Although a full normal discharge (phone powering off) won't kill your battery in one go, it's a deeper discharge than I would recommend on a regular basis. Things are built with margins of safety, but I don't like playing on the edge when I can avoid it. The difference between 10%-15% isn't too much either when it comes to my use-case either, so I'm content to bounce between 20/30-95 most of the time.

Rirere said:
Your battery will automatically cycle between 95%-99.9999% to prevent overcharge, so you're fine on this front. You probably just caught it on the low end of the cycle.
The issue with charging + tethering is that a phone draws more power when plugged in (ramping up processor, etc.), and tethering eats a lot of power. More importantly, both charging the battery and running the antennas for tethering generate a lot of heat. So long as you watch your battery temp (most good tethering apps will toss in a temperature gauge, although if you're using stock you'll need another solution), you should be fine, but heat is one of the fastest ways to kill a Li-ion battery.
Although a full normal discharge (phone powering off) won't kill your battery in one go, it's a deeper discharge than I would recommend on a regular basis. Things are built with margins of safety, but I don't like playing on the edge when I can avoid it. The difference between 10%-15% isn't too much either when it comes to my use-case either, so I'm content to bounce between 20/30-95 most of the time.
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That is certainly a good point as well. No need to play on the edge of the cliffs. lol
You see my point tho
About safety margins

[Q] Overnight charging recomended by Motorola?

I just got a "tip" from Motorola telling me that its best to charge my phone to 100% whenever I'm near an outlet and that they RECOMMEND charging the phone overnight to accomplish this. Are they trying to make my battery die quicker or something? Am I missing something about newer cell phone batteries that allow for constant recharging over the course of a single night without killing the battery?

Apparently, you can charge some of the newer phones and tablets overnight and not have to worry about overcharging. These newer batteries are supposedly able to stop taking charge once they reach full capacity. I've Google'd this a few days ago and several users on several forums from different sites are all saying the same thing. However, although you can charge it overnight without having to worry about overcharging, heat conduction while having the battery charge might be excessive enough to damage the battery.

I leave the phone on charger all night every night and i haven't really noticed any changes in battery.
Sent from my XT1056 using xda app-developers app

I've been doing this for years with no problems ever.
Sent from my XT1056 using Tapatalk 4

I've always left every single one of my phones to charge overnight. Do some people really take it off the charger as soon as it's charged? That seems like a waste to me, as you're using battery charge that you could otherwise be using throughout the day.

mrbradeli said:
I just got a "tip" from Motorola telling me that its best to charge my phone to 100% whenever I'm near an outlet and that they RECOMMEND charging the phone overnight to accomplish this. Are they trying to make my battery die quicker or something? Am I missing something about newer cell phone batteries that allow for constant recharging over the course of a single night without killing the battery?
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That Motorola tip is total BS. It doesn't matter whether you charge it to 100% and you certainly don't need to charge it overnight to accomplish that although it's fine if you do.

Good to know. Glad batteries aren't as finicky as they used to be.
Sent from my XT1053 using xda app-developers app

clankfu said:
That Motorola tip is total BS. It doesn't matter whether you charge it to 100% and you certainly don't need to charge it overnight to accomplish that although it's fine if you do.
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I think the newer batteries today become worse based on the number of cycles you put them through. Further, letting your phone only go donw to 80% before charging it back up again causes less strain on the battery and isn't a full cycle. The more cycles your phone goes through the less of a charge it can hold. This is why many people report to charge your phone as much as possible because it is actually better for you to leave it charging all the time instead of doing a battery cycle.
Many battery monitor softwares require you to recalibrate the batteries capacity to hold a charge after a certain number (often 30) cycle have been performed. And they consider cycles depleting your battery pass a certain percentage (ex. 70% or something). I did a decent bit of research a while ago and this was the information that I gathered from all of it.

jayboyyyy said:
I think the newer batteries today become worse based on the number of cycles you put them through. Further, letting your phone only go donw to 80% before charging it back up again causes less strain on the battery and isn't a full cycle. The more cycles your phone goes through the less of a charge it can hold. This is why many people report to charge your phone as much as possible because it is actually better for you to leave it charging all the time instead of doing a battery cycle.
Many battery monitor softwares require you to recalibrate the batteries capacity to hold a charge after a certain number (often 30) cycle have been performed. And they consider cycles depleting your battery pass a certain percentage (ex. 70% or something). I did a decent bit of research a while ago and this was the information that I gathered from all of it.
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Right. It is better to charge your phone as much as possible because your battery is capable of only a finite number of full cycles. My only contention is that it is not required that you charge it to the full 100%. In fact, they say that it's actually better for Lithium-ion batteries to hold partial charges.

Never charging the battery to 100%, nor depleting it to 0% will allow you to more get more out the battery overall. But keeping it on a charger means that you shouldn't even be using the battery.
I keep mine on charge overnight, and if I weren't worried about wearing out the USB port, I'd put it on a charger when in the car, while at my desk at work, etc...

Acc. To motorola cust. Care
mrbradeli said:
I just got a "tip" from Motorola telling me that its best to charge my phone to 100% whenever I'm near an outlet and that they RECOMMEND charging the phone overnight to accomplish this. Are they trying to make my battery die quicker or something? Am I missing something about newer cell phone batteries that allow for constant recharging over the course of a single night without killing the battery?
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SO i contacted motorola through help and they warned me to not charge my phone overnight every night because it would "DRAIN" my battery.
however they said it was ok occasionally
that's a bummer cos it is pretty convenient :/

shreymalhotra96 said:
SO i contacted motorola through help and they warned me to not charge my phone overnight every night because it would "DRAIN" my battery.
however they said it was ok occasionally
that's a bummer cos it is pretty convenient :/
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Sorry but whoever told you that is misinformed. No harm will come to the phone / battery from charging overnight unless you use a dodgy fake charger. I've charged all my phones overnight since my Motorola MicroTac in 1995 and have never had a battery / phone fail because of it.

All Motorola devices have good battery protection software, it won't hurt it to charge overnight. Short charging sessions are better for your battery but it makes no sense to worry about that either. The only way to hurt your battery is if you stuff a charge by letting it fill, then unplugging an plug it in several times. This can "top off" your battery and give you a little more charge but at the risk of damage and shortening your battery life. I personally don't recommend it. I have Anker backup battery if things get desperate or if I am out all day.
Sent from my HTC6525LVW using XDA Free mobile app

Well yeah, how about Apple doing it and everyone else pursuing? prolonged charging IS damaging your battery. If you use a Chargie device (https://chargie.org) during your overnight charging you might prevent this, since it delays and limits the charging pattern to a safe value. But otherwise nobody in 2021 recommends leaving your phone charging overnight.