Is it okay to charge the phone when it is not fully out of battery? I usually charge my phone at about 40% and my battery life isn't that great.
yea
Yea its fine
It can actually can actually damage Li-Ion batteries to be fully discharged, especially for extended periods of time. It's also not good for them to be 100% charged for extended periods of time (overnight charges are a fact of life, and your battery will obviously survive). The ideal charge for them is somewhere between 40-80%. So what you're doing is actually good practice: recharge once battery gets below 40. Also, if you aren't going to have to be away from a charger all day long, it's best to unplug at around 80%.
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Is it bad to charge the battery when it doesn't need charging yet (for example if it's still at 60%)? I'd like to use the Google Navigation on my Desire more but I don't because I think the phone is gonna die while I'm driving. So I'd like to charge it before I start driving but if the battery is still pretty high and I charge it, will it ruin the battery?
No, this new type of batteries have no harm if charged even when are not at very low level
The Li (ion and polymer) batteries actually work better if topped up regularly and never get deep discharged.
I've heard, that these batteries should be kept 20-80% charged. Sometimes it's good to fully discharge and recharge to 100% just to reset some kind of memory in the battery.
ingvarr_zaag said:
I've heard, that these batteries should be kept 20-80% charged. Sometimes it's good to fully discharge and recharge to 100% just to reset some kind of memory in the battery.
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It's used to recalibrate it. But doing that (depleting til it shuts down by itself > charging to 100%) once a month should be plenty.
Anyone have any ideas why my phone refuses to charge my battery correctly and the wall charger that came with my two spare batteries does a much better job? If I charge my battery through the phones usb I get maybe 5 hours of use but when I use the charger that came with my 2 cheap spare batteries I'll get 8 to ten no matter which battery I use.
Here is my opinion on the situation.
http://forum.xda-developers.com/showthread.php?t=777854
basically it is charging your battery correctly. The problem you are likly having are
1) your battery stats is off and you ahvent recalibrated it so the phone is stopping the charge early
2) you leave the phone plugged in for long periods of time because the phone does not use a trickle charge process it does nto stay at 100% and can acctually be anywhere from 90-100% charged even though the light is green
the reason there is no trickle charge is to try to prolong the life of the battery. the battery stats is to try and help the phone gauge when to shut the phone off and when to stop charging so it doesnt completly drain the battery or over charge it. both have benefits and draw backs.
try recalibrating your battery so that the phone has a better understanding of the acctual life (you may charge the battery fully in the wall charger then put it in the phone wipe battery stats in recovery and the let it drains till the phone shuts off. recharge it fully and go on your way.
the no trickle not a lot you can really do about that.
Guess that makes sense. So you think I should get a full charge from my wall charger then wipe battery stats from my recovery then let it drain 100 % then full charge it and it should recalibrate it?
And thank you for the help.
I ordered the HTC extended battery for my TBolt, but I'd love to keep the stock battery in a pouch on my work belt and just kinda forget about it in case a situation arises where I need it. Any idea how long it'll hold the charge?
It will discharge over a certain period of time. Not sure if its days or what, but it will.
Your best bet would be to buy a spare battery charger on eBay or something
It will very slowly discharge over time, but certainly not days, and unlikely even weeks. I have spare batteries for my Droid I've left out a couple months at a time and when I finally slapped them in my Droid they were still at 100% charge.
just don't let the spare become too hot, or that will drain it faster.
It depends on how your storing them also. Keep them out of the cold or extreme heat and it should hold its charge for a couple months.
Another piece of advice if you get a spare battery charger, don't leave the battery mounted into the charger after its charged up if it isn't plugged in. might just be the cheap one I have but if I do that it drains the battery overnight
Sent from my ADR6400L using XDA App
My 2750 mah battery lasts all day
Sent from my ThunderBolt using Tapatalk
A charged LiIon battery will hold a charge for years.
Keep it stored in a cold place, away from heat. Heat and the full charge will oxidize the battery and it will lose capacity, (though still hold a charge).
Basically, never keep it in a hot car.
Storing it in a cold refrigerator is a great idea, but warm it up before you use it.
i use my spares about once a month. after a month of no use, they are still at like 95%.
If you where to place it some where or carry it it usually losses about 10% to 15% a day I always bring the extra battery where ever I go. Also a good thing to know that powering the phone up can take 10% from the battery when powering up.
Zinsko said:
If you where to place it some where or carry it it usually losses about 10% to 15% a day I always bring the extra battery where ever I go. Also a good thing to know that powering the phone up can take 10% from the battery when powering up.
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Lithium Ion batteries we use in our phones don't discharge that fast when not in use, unless the battery is bad. Normal discharge on them is around 1% a month or less. If you're storing a battery for a long time, you'd be better off not storing it at 100% charge though, can cause damage to them over the long term.
That being said, my stock battery is in my bag with about an 80-85% charge on it, I only use it in case of emergencies (I'm never away from a charger longer than that 85% will cover, so works well for me).
Zinsko said:
If you where to place it some where or carry it it usually losses about 10% to 15% a day I always bring the extra battery where ever I go. Also a good thing to know that powering the phone up can take 10% from the battery when powering up.
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No way they lose that much.
I have an old Windows mobile phone that has not been turned on since last year. I just turned it on to check it, and the battery is at 60%. No idea what it was when I turned it off, but likely not 100%.
LiIon does NOT lose but just a percent or two a month. Store your spare batteries in a cold place like a refrigerator, and they will last with a charge longer then you have the device.
I have a 3900 mAh battery from Mugen. Ive noticed the battery lasts about 30 hours. But I find something very strange. It drains around 96% in just 15 minutes on straight boot after charging every time. In fact, the first 80% of so drains pretty quickly? Ive had it in my phone for about 2 weeks. Has anyone else noticed this or know why this may be happening. Also when at 100%, and i inplug it, goes straight to 98!
Have you done a battery calibration? Get the Battery Calibration app from the play store.
There's some argument as to whether this does anything or not, but have you conditioned the battery? That means letting it drain completely, then charging it continuously till it hits 100% - do that several times.
Its been proven that the app does nothing, which wipes battstats.ini or something
As for conditioning, its been down to around 3% before being charged. Ivehad the battery 2 weeks now.
Lithium Ion batteries have a very steep drain for about the first 15-20% and also slower charging from those levels. Once past that the drain is nearly linear, and then gets very steep at about 3.6v.
You can see it in the graphs here:
http://www.ibt-power.com/Battery_packs/Li_Ion/Lithium_ion_tech.html
Typically the way our devices are designed, they do not charge the battery to 100% full it can actually cause damage to lithium ion based batteries. what happens is the battery is charged to 95%-98% then the device stops the charge and allows the battery to drop to abut 85%-90% and then starts trickling it again. By design the batteris typically drain a little bit fast at the top level.
further more lithium ion batteries survive more recharge cycles if the D0D (depth of discharge) is about 25% remaining.
Basically you battery will last longer by the device not charging to 100% and letting it discharge slightly when in trickle mode, and if you don't let it die completely and charge it when it reaches around 15%-20% left.
-Mr. X- said:
Typically the way our devices are designed, they do not charge the battery to 100% full it can actually cause damage to lithium ion based batteries. what happens is the battery is charged to 95%-98% then the device stops the charge and allows the battery to drop to abut 85%-90% and then starts trickling it again. By design the batteris typically drain a little bit fast at the top level.
further more lithium ion batteries survive more recharge cycles if the D0D (depth of discharge) is about 25% remaining.
Basically you battery will last longer by the device not charging to 100% and letting it discharge slightly when in trickle mode, and if you don't let it die completely and charge it when it reaches around 15%-20% left.
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Hmm that kind of makes sense. Everyones been telling me to not let it drop to below 35% though cause it 'wears the battery out'. Ive been charging at around 40 cause thats where itd be after a full day at work and such.
Ive been getting concerned though because ive seen screenshots of people getting 31 hours with 7 hours of screen on time.
Im at 62%, 9.5 hours total, 1 hour 7 min screen on. Thats mostly with Wifi on though.
My stock battery used to drop 10% an hour on 4g, and this one dropped ~11% on 4g just now....
mknewman said:
Lithium Ion batteries have a very steep drain for about the first 15-20% and also slower charging from those levels. Once past that the drain is nearly linear, and then gets very steep at about 3.6v.
You can see it in the graphs here:
http://www.ibt-power.com/Battery_packs/Li_Ion/Lithium_ion_tech.html
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Thanks for the graph!
Sent from my amazing G2x running EaglesBlood and Faux.
Now at 36% And its just sitting off mostly with some light texting
Now 35!
Got a weird feeling the battery is messed up.
Its 3900mah, divide by 650 = 6 hour charge
Its been 6 hours and its at 46% with the phone off so its not using power, and on the wall charger.
Rekzer said:
Its been proven that the app does nothing
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I haven't heard that before. Got a source for that info?
mayonaise said:
I haven't heard that before. Got a source for that info?
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http://www.androidcentral.com/wiping-battery-stats-doesnt-improve-battery-life-says-google-engineer
i just got the phone yesterday (att) i charged the first time in 4hours , is that okay cause people told me that i needed to charge in +8 hours ,and now do i have to use the phone to die completely and charge it again or just need to low battery ? sr for my bad English
kevintran.98 said:
i just got the phone yesterday (att) i charged the first time in 4hours , is that okay cause people told me that i needed to charge in +8 hours ,and now do i have to use the phone to die completely and charge it again or just need to low battery ? sr for my bad English
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here is the answer for your question:
Lithium-Ion - Li-ion batteries are the newer type of battery that are found it most newer cell phones (most definitely most, if not all, smartphones use Li-ion and many "dumbphones" use them too now). Li-ion can be thought of as "smarter" than NiCad batteries; Li-ion batteries don't suffer from the "memory effect" and thus don't need to be conditioned like NiCad batteries.
Rather, to condition a new Li-ion battery, fully charge it; it should be allowed to charge for 7-8 hours on the first, initial charge. In other words, when you get your new cell phone - and it has a Li-ion battery - allow it to charge for 7-8 hours even if the cell phone claims to be fully charged. (It is preferable to use outlet charger vs car charger or USB charging via computer because of the voltage difference.) After that, there is no reconditioning necessary for Li-ion batteries since they don't suffer from the "memory effect". However, be sure to avoid fully draining/discharging the Li-ion battery as much as possible; every time a Li-ion battery is fully discharged, it loses battery power and life. (That doesn't mean your battery will die if it is ever fully discharged; it means it is best to avoid fully discharging when possible.) Try to recharge Li-ion batteries when they are at 15-25%. Similarly, avoid heat as much as possible and when (if) storing Li-ion batteries, store them not at full charge.
Update: The only time you should ever intentionally fully discharge a Li-ion battery is if your phone is not properly reading the battery. In other words, if you go from 100% -> 90% in ten minutes but go from 90% -> 80% in one hour with the same amount of usage, that means your phone is not reading the battery output evenly. If this is the case, then fully discharging your battery once and then recharging it can fix the issue of your phone not reading the battery properly. Take note, however, this full discharge/recharge won't increase your battery life -- it will only ensure your phone reads the battery properly.
People often confuse Li-ion and NiCad batteries and try to condition Li-ion batteries by charging/discharging them 4-6 times. Trying to condition a Li-ion battery like it is a NiCad battery (i.e. charging/discharging the Li-ion battery 4-6 times) hurts the Li-ion battery more than helps it. So, be sure to condition your new cell phone's battery, but be sure to condition it properly. Otherwise, you may be doing more harm than good. If you are not sure what type of battery you have, read the labels on the battery - they will always say whether the battery is Lithium-ion or Nickel-cadmium. Good luck and may we all have long lasting batteries.
p.s. i got my one x yesterday too and is most beatiful phone in the world