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To the point that your phone shuts off? Is it bad for the battery?
I know overcharging it isn't because it drops a few percent and constantly charges back up to 100%...
Just wondering, thanks.
From what I understand,our li.ion. batts do not let you discharge all the way.( to save the life of the battery)
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What ^^^ said. Even when "drained" your battery will still put out 3.5 volts +/-.
Ah, gotcha. Wonder why AT&T says to power the battery to 100% and drain until notified of a low percentage... Hmn...
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That is basically calibrating your battery that you see so much about. The phone is designed to turn off when the battery voltage drops to a set level as it requires a minimum voltage to function. On the 100% charged side, sometimes the phone may think that the battery is fully charged when in reality it has not reached 4.2v.
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If I am trying to make sure my battery stats have the full minimum and maximum capacity I run down to 1% before plugging in.
If I think my battery stats are fine I don't worry about when to plug in.
xThe Enforcer said:
To the point that your phone shuts off? Is it bad for the battery?
I know overcharging it isn't because it drops a few percent and constantly charges back up to 100%...
Just wondering, thanks.
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Basically, any device that uses a lithium battery has a device or process that monitors voltage and sets a minimum voltage that, when reached, turns off the device. This is required, otherwise lithium batteries would have a battery life that was only good for a few cycles. This applies to every application where lithium batteries are used. Phones, laptops, ipods, basically any modern portable device... or in my case, radio controlled model airplanes. The airplanes I fly use electric motors, and the voltage shut-off has two stages: one that cuts power to the motor but leaves power to the control surfaces so you can still land without crashing, and one that shuts off all power -you crash if you drain it this far. I know it isn't phone related, but it might help you understand the way it works. It's just the way it is. I've destroyed batteries in one cycle by running them below minimum voltage.
Thanks for all the info, ladies.
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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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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.
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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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interesting topic and even more this reply. One new thing I leant on my learning curve, I must say.
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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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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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i'm currently using my note 1 as a secondary monitor and it is plugged into the standard charger while doing so. Will the battery be constantly 'zapped' as I use it? or the battery can remain 'like new' if it's always plugged into AC?
Thanks!
Might be,might be not. I did that sometime, even on my laptops without any problems. But the recommended is unplug when it full charged and charg when its 1-10%. I use battery doctor app for trickle charge for long live battery. And btw the OEM stock bettery is cheap anyway. From now till ur battery is getting drain like hell its would be take like 6month to a year.
Just saying ...
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dylansmith said:
i'm currently using my note 1 as a secondary monitor and it is plugged into the standard charger while doing so. Will the battery be constantly 'zapped' as I use it? or the battery can remain 'like new' if it's always plugged into AC?
Thanks!
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It's better to discharge it completely, then recharge it completely from time to time.
Full cycles of charging and discharging keeps the battery healthy for a considerable time.
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Also, keeping the phone on charging even after it hits 100% causes the battery to swell. You will not see the effects immediately, but after 4 months, the battery will be swollen on one side. And swollen batteries like to self destruct.
Every battery can be recharged several times[for exm: 500] If you charge it 5 times per day = 100 days battery life. So i think its better to dont remove adapter when battery hit 100%. The new cell phones and laptops got protection and they dont charge the battery when its fully recharged.
This is just my opinion.
Some time ago I did a little research, because I was using my phone as a wi-fi modem for my laptop. Most opinions said, that constant plugging may affect your battery life and best is not to keep it plugged when fully charge too often and for too long.
warfareonly said:
Also, keeping the phone on charging even after it hits 100% causes the battery to swell. You will not see the effects immediately, but after 4 months, the battery will be swollen on one side. And swollen batteries like to self destruct.
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Vaiet said:
Some time ago I did a little research, because I was using my phone as a wi-fi modem for my laptop. Most opinions said, that constant plugging may affect your battery life and best is not to keep it plugged when fully charge too often and for too long.
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no it actually does not cause this... the batteries and phones have smart circuitry which prevents battery overcharging.
now fully cycling a battery 1-2 times a week will extend the life of the battery..
As far as I remember from the tech-news, newest energy cells (li-ion and li-poli) shouldn't be charged like the old ones - I mean charge 12h, then empty it completely and repeate the whole process 3 times. I read it on polish site some time ago and they we're also saying, that keeping phone under chargerer can harm battery or even mainboard.
But as we can all see, there are many different opinions about that
My old note battery swelled and it was because i put it on plug before sleeping to get 100% in the nornibg my battery swelled within months and i had to change it....
I have experienced the battery awelling.
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qazibasit said:
My old note battery swelled and it was because i put it on plug before sleeping to get 100% in the nornibg my battery swelled within months and i had to change it....
I have experienced the battery awelling.
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hmm, that's what i do every night (for sleep tracking), but my battery didn't swell (both OEM and original).
dylansmith said:
hmm, that's what i do every night (for sleep tracking), but my battery didn't swell (both OEM and original).
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Mine did. Swelled a bit on the side, cover used to creak whenever I pressed on the other side
All (reputed) devices that use Li-Ion batteries use controllers that will automatically cutoff charging once the voltage reaches 4.200V/cell.
So you cannot over charge a battery by leaving it on for long duration.
Unlike the older Ni-Cad batteries, there is no memory effect. so there is no need to fully discharge it periodically
In fact, deep discharge of Li-Ion battery will irreversibly reduce battery capacity (Wikipedia -> Li-Ion battery -> Battery life )
Can I charge my z from night till morning everyday? Will it swell up the battery or decrease its battery life?
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pjgowtham said:
Can I charge my z from night till morning everyday? Will it swell up the battery or decrease its battery life?
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Battery have protection, so You can leave it over night. In the morning You can find batter on 92-96%. That is no problem, it is some kind of overcharge protection. When it came to 100%, it stops charging and start discharging to avoid any battery or phone damage.
I read somewhere that it is good for the phone to be on charge often. Its the charge/discharge cycles that wear out the battery. The battery is only good for a certain amount of charge cycles. For example, if the battery goes down to say 60% then you charge it back to full, thats only 20% of 1 full charge cycle (40% of the discharging half of the cycle = 20%).
I always have my phone on charge overnight. I just updated from a 2 year old Xperia Arc and the battery on that still lasts as long as it did when it was new.
If you think about it, if its on charge and reaches full, it isnt really using the battery is it? Its running off mains.
charging overnight is not bad but letting your battery drain below 10-15% is bad. it is best to charge from 40-50%
For lithium batteries il better charge from 80% To 100 than 10% To 100... The battery is Less stressed... So.. For me over night it's ok, The battery has protection But charging from 10 To 100% no..
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Mine is on charge around 80% of the day, yet maintains it's original battery life when it's running off its own juice.
I don't see a problem, the only issue I can think of is that using the phone heavily whilst on charge causes the battery to heat up and this can sometimes be felt through the phones casing.
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I use a 350ma charger, it takes about 4.5 hours to charge over night, ( about 7.5 hours). I believe slow charging and not draining the battery too much is the best way.
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Hey guys
I just want to tell you my battery cycle drain .. I always have bluetooth turned on my gear but not necessarily all the time connected to my phone .. well the cycle from 100% to 0% was 35 hours..
Is my watch draining fast or is the drainage normal?
Thanks in advance
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There really is no "normal" discharge rate. Discharge rates will be different for everyone because everyone uses the watch differently. If you can go more then a day without charging, your getting good performance. Or not using it much.