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Hey guys, I just wanted to point something out that I found. I have two Motorola bh6x batteries for my atrix and today one of the batteries ran down to 15% or so. Since I was in a hurry I just swapped it out for my fully charged battery. Later on I plugged the first battery back in and it somehow had 55% charge. What I'm wondering is how the heck that's possible. Has anyone else seen this happen to their phones?
Sent from my Gingerblurred Atrix
My experience with android. Reboot phone to gain about 10% back.
Sent from my MB860 using XDA Premium App
Its magic!! I had a feeling this was a glitch in the battery reading.
Sent from my Gingerblurred Atrix
It was Harry Potter who done it!
I swear guv!
In adition to rebooting and taking the battery out to sit idle, Ive found that soaking my battery overnight will double its charge! jk
I know your phone keeps a batterystats.bin file, and to "calibrate" you delete this file after fully charged. Not sure how this works with two batteries tho.?
do you guys leave your tf plugged in at all times?
Sent from my Transformer TF101 using XDA Premium App
Nope, I unplug it when its fully charged and only charge when there is less than 10% left.
I ordered a USB 3.0 extension cable. One of the reviewers for it said it worked perfectly for his TF. One of the most annoying things I found was not being able to charge from the computer while I used the device. The plug was way too short for the wall. This one is awesome and very cheap. Here is a link:
6ft USB 3.0 A Male to A Female Extension 28/24AWG Cable (Gold Plated)
Quotes from the reviews of it:
"Powers and charges the ASUS Transformer tablet when used with the ASUS Transformer power adapter. Also works as data cable when connected to PC."
"i bought 5 of these for random usb charging extension for mainly tablets - ipad, transformer, galaxy tab. these work perfectly fine and charge at full speed."
It's better for Lithium-Ion batteries to drain little and top-up as often as you can so I plug it in whenever I'm not using it.
frosty5689 said:
It's better for Lithium-Ion batteries to drain little and top-up as often as you can so I plug it in whenever I'm not using it.
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I hear a lot of back and forth about this. Do you have a source for this info? (Not doubting you, just, like I said, I constantly hear people changing their minds on this)
EDIT: Nevermind, maybe I am thinking way back or something. I am finding most info points to "Don't deep drain if you don't have to"... just google lithium ion battery care if you thought the same as me.
I'm curious, i just got my transformer today, in the instructions it says to charge it for 8 hours. But I had full charge after 3 hours. Do I still need to charge it for another 5 hours?
--Jak
wakjagner said:
I'm curious, i just got my transformer today, in the instructions it says to charge it for 8 hours. But I had full charge after 3 hours. Do I still need to charge it for another 5 hours?
--Jak
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yes you should, the battery needs overcharged for premiere usage. but after that don't overcharging your battery in daily usage which the OP is asking.
I charge mine a few hours at night, but unplug it overnight. Since I have the dock, I don't even come close to running out of battery during the day so I leave it uncharged until night time again.
In this case, my Tablet is always 100% and my dock battery drains and gets recharged. I have no idea what my battery life will be later on hehe.
Lithium ion are good for about 300 to 400 charge cycles...usually closer to 300. It is a good idea to charge fully and then simply let it run down. ...i am a tech at a lathe national company. We see trouble tickets from users about batteries on laptops frequently. If the device sits plugged in all the time your battery will last a little over a year before it's about 50% effective. I have no source for my data, just experience.
Hope that helps
Sent from my ADR6300 using XDA App
*sigh* lathe = local
Sent from my ADR6300 using XDA App
I remember as a kid, when getting new hardware, you need to charge it to the maximum and leave it in for a few hours to kinda work the battery and get the most optimal battery life. So for this phone, what would you need to do when you first get it to get the battery to be the best it can be?
Do we cycle it from 0 to 100, or just charge it to 100 and leave it?
Or does it not matter?
qwahchees said:
I remember as a kid, when getting new hardware, you need to charge it to the maximum and leave it in for a few hours to kinda work the battery and get the most optimal battery life. So for this phone, what would you need to do when you first get it to get the battery to be the best it can be?
Do we cycle it from 0 to 100, or just charge it to 100 and leave it?
Or does it not matter?
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Click to collapse
It doesn't matter. While older nickel-cadmium batteries could have issues with charge memory, lithium ion batteries are not affected. Just charge and use your phone as normal. If you want to maximize battery life make sure not to place your phone in extreme heat (eg. inside a locked car in summer time) and avoid leaving your phone at 0% charge for any length of time.
firstness said:
It doesn't matter. While older nickel-cadmium batteries could have issues with charge memory, lithium ion batteries are not affected. Just charge and use your phone as normal. If you want to maximize battery life make sure not to place your phone in extreme heat (eg. inside a locked car in summer time) and avoid leaving your phone at 0% charge for any length of time.
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But the phone is using Lithium Polymer...
qwahchees said:
But the phone is using Lithium Polymer...
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For the purposes of this discussion it is identical.
Well technically it's Lithium-ion Polymer
Same thing. Either way they don't have the memory issues that old rechargeable batteries had..
Sent from my Galaxy Nexus using xda app-developers app
Nope.
These new Lithium batteries aren't subject to any of these myths.
Same with the "Take off your device from the charger once it has been fully 100% charged or the battery will stuff up." Nope. The battery just cuts the charge and just runs down. That's why if you look at your charging history, it might go to 99%, 98 or even 97, and go back up to 100% because that's when the phone decides, "Yep, I'll take a bit more charge."
Alright. Thanks to everyone!
I'm getting mine tomorrow ;D
(Aw, outta thanks to give :'( )
It is good with these batteries to run then down to almost empty every week or so, right?
Sent from my Nexus 7 using xda app-developers app
Richieboy67 said:
It is good with these batteries to run then down to almost empty every week or so, right?
Sent from my Nexus 7 using xda app-developers app
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Another myth. Not true for Lithium batteries
Really? I read this in a battery forum years ago. This was for laptop batteries though..
Not meaning to sound sarcastic, how do you know this? Are you an electronics engineer or something? Just wondering.
Sent from my Nexus 7 using xda app-developers app
Lithium-ion/lithium-polymer batteries don't have the "memory effect" that older nickel-cadmium and nickel-metalhydride batteries did. So there's no point trying to run your battery down low every now and again to help its life. In fact, it seems that charging it more often is the most helpful thing, i.e. lots of small charges rather than big charges all the time.
Just use it normally and charge it when you need, it'll be fine.
Sent from my HTC Vision using xda premium
How about leaving the phone charging after it is fully charged? Like when you charge it overnight.
arcwindz said:
How about leaving the phone charging after it is fully charged? Like when you charge it overnight.
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The phone and charger electronics will lower the rate of charging as it reaches 100% and turn it off when it's done. You don't need to worry about unplugging it right away.
In longer term storage situations where you aren't using the device (i.e. weeks or months) it's optimal to store the battery at a charge level of 60-70% to reduce battery degradation over time. When the Mars rover \Curiosity was en route to mars the batteries were at 60% and were charged upon approaching the planet.
Richieboy67 said:
Really? I read this in a battery forum years ago. This was for laptop batteries though..
Not meaning to sound sarcastic, how do you know this? Are you an electronics engineer or something? Just wondering.
Sent from my Nexus 7 using xda app-developers app
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I am an electrical engineer actually. Li-Ion or Li-Po batteries do not need to be treated any special way. The only thing that degrades them is use and time. And it does not matter how deeply you discharge them (discharging to 50% twice is about the same wear on the battery as discharging to 0% once, within a reasonable degree of error).
What you may have been reading was with regards to calibrating your laptop's battery meter. There is some truth to that, and allowing even your phone to discharge completely (down to 5% or so) once can help make sure your battery percentage is accurate. But it does not affect your battery life at all.
qwahchees said:
I remember as a kid...
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I remember as a kid that all the phones had a cable attached and no battery whatsoever...
Sent from my MB860 using Tapatalk 2
I'm following what the manual said!
I was going th carge wherever and start using it, beut then i got the phone and read that it would be good to charge it full first.
i.imgur.com/0PP3v.jpg
I prefer to follow what google says thank you very much
Actually...
raziel.beoulve said:
I was going th carge wherever and start using it, beut then i got the phone and read that it would be good to charge it full first.
i.imgur.com/0PP3v.jpg
I prefer to follow what google says thank you very much
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Actually, it doesn't say to do it "first". It says "its a good idea to fully charge *as soon as you get a chance*."
The wording in the quick start guide you provided doesn't seem to imply that its a critical thing. It seems to me that they are putting that there in case someone takes it out the box, starts playing with/using it, then wonders why the phone is already dead. Then they post to XDA about how the battery life sucks. (Just kidding! )
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
I generally try not to charge my note 2 overnight. I want this battery to be healthy as long as possible, so I don't want it to sit at high voltages for too long.
Normally my note 2 is around 80 percent when I go to sleep so I don't plug it in at night, I just plug it in in the morning for an hour before going to work. It reaches 100 and then I remove it.
The times when my battery is much lower that I won't be able to charge it in the morning in the hour, I do charge it overnight.
What I've noticed is that the battery drains much slower on the days it's been on the charger overnight.
So I'm thinking that the charger will continue to raise the voltage even after it reaches 100%. Maybe someone has some other thoughts, but I just wanted to share what I've noticed so people are careful with their battery.
Hi,
Charge it yhe way you want. Don't stress on it.
But for a few tips:
Don't let the lithium-ion battery go down to critical battery levels before charge.
Don't put the battery on the refrigerator.
Don't over charge it even if it's a new battery .
Simone said:
Hi,
Charge it yhe way you want. Don't stress on it.
But for a few tips:
Don't let the lithium-ion battery go down to critical battery levels before charge.
Don't put the battery on the refrigerator.
Don't over charge it even if it's a new battery .
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So basically i can't charge the battery overnight? I don't understand the meaning of don't overcharge it.
Raging_Ken said:
So basically i can't charge the battery overnight? I don't understand the meaning of don't overcharge it.
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Click to collapse
You can but can potentially damage the battery. It's up to you.
I'm going to disagree with you guys. The charger and the battery has overcharging protection built in. So don't speculate with overcharging overnight. In fact when the phone has stayed longer on the charger I got better battery life. Cheers
Sent from my GT-N7100
kirilorius said:
I'm going to disagree with you guys. The charger and the battery has overcharging protection built in. So don't speculate with overcharging overnight. In fact when the phone has stayed longer on the charger I got better battery life. Cheers
Sent from my GT-N7100
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Click to collapse
Yes, I know. So why would you charge your phone overnight? So it would stay 100% when you wake up?
I charge my phone overnight everyday.
The battery magnet would trigger the charger into trickle mode. This prevents overcharging.
Li-ion battery prefers to be charged then discharged. Contrary to hearsays, discharging it to critical levels too often would actually degrade battery life.
My Nexus one of 2 years still maintained a 84% charge because of this.
Simone said:
Yes, I know. So why would you charge your phone overnight? So it would stay 100% when you wake up?
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Cause i'm using it all day till 1-2 o'clock at night and thats the only time i can charge my phone. And with the heavy usage im putting it the battery cant hold more then 15-16 hours
Sent from my GT-N7100
The battery have both overcharging and undercharging protection.
So there is no problem charging your phone overnight, the battery will stop charging when it is full. It will then be allowed to discharge a bit and the charging cycle will resume. The fluctuations caused by this charge/discharge cycle are usually hidden by the firmware so that you only see 100% - charged.
As for undercharging, it can indeed kill batteries, but it won't happen unless you drain the battery completely *and* let it self-discharge for a few weeks.
You don't have to adopt a specific charging pattern to keep your battery in good shape, just do what's most convenient for you.
Some tips however :
- Avoid high temperatures, batteries don't like it. The fridge is actually a good place to store your batteries provided that you took the necessary steps to prevent condensation.
- Store unused Li-Ion batteries at about 50% charge. Fully charged batteries have a lower shelf life, the 50% are there to prevent self-discharge from causing undercharging.
- A full discharge-charge cycle won't make your battery healthier but it is useful to recalibrate the power gauge.
kirilorius said:
Cause i'm using it all day till 1-2 o'clock at night and thats the only time i can charge my phone. And with the heavy usage im putting it the battery cant hold more then 15-16 hours
Sent from my GT-N7100
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Click to collapse
I see. Well, in your case it may be better.
Because during the night it gets more time to detect the proper voltage and stop.
And the battery is removable for a reason. It'll have over 80% original capacity even after 2000 discharges and it's only $20 at most to replace. No need to stress it over. Use it all you want and replace it the time comes. Leave the stressing over to the non-replaceable guys.
Sent from my GT-N7100 using xda premium
BBlax said:
Because during the night it gets more time to detect the proper voltage and stop.
And the battery is removable for a reason. It'll have over 80% original capacity even after 2000 discharges and it's only $20 at most to replace. No need to stress it over. Use it all you want and replace it the time comes. Leave the stressing over to the non-replaceable guys.
Sent from my GT-N7100 using xda premium
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Exactly.
If said battery full unplug charger, i let the phone still connect to charger moreless 1 hour...
Sent from my GT-N7100 using xda premium
Rudyansah said:
If said battery full unplug charger, i let the phone still connect to charger moreless 1 hour...
Sent from my GT-N7100 using xda premium
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Why anyone stresses over a $20 user replaceable part is beyond me. I think you're too used to iPhones
kebabs said:
Why anyone stresses over a $20 user replaceable part is beyond me. I think you're too used to iPhones
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I love eating kebabs. LOL :cyclops:
BBlax said:
And the battery is removable for a reason. It'll have over 80% original capacity even after 2000 discharges
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You telling me if i charge once a day, the battery will still have over 80% charge after 6 years of years? I find that hard to believe as all my previous batteries have to be replaced after 2 to 3 years of use.
That's the quote from manufacturers under ideal conditions. The only devices that I haven't threw out for that long are laptops and the battery in them are still working flawlessly and holds a reasonable charge.
Even tiny LSD batteries can have up to 1000 charges so higher capacity ones will last longer and be more durable due to the increased amount of cells. Just like how higher capacity nand will last longer than lower ones.
Sent from my GT-N7100 using xda premium
It's a 30 battery. Treat it like **** and just replace it when it dies! By the time it's dead you'll be wanting a new phone anyway.