Hi Guys,
i've this problem with a high capacity battery. if i load it through the external charger provided with it, i'm able to reach 3 days of normal usage while if i charge when the battery is in the phone, it takes less to discharge (1.5-2 days). I've tried a lot of battery application but seem a more hardware stuff. Probably android have some functionality that ables to disconnect the power when the battery reached the "false" 100%.
In all likelihood, they aren't charging to the same voltage. You'd have to check the full battery with a multimeter to know for sure.
Sent from my LG-P925 using XDA App
Mind sharing the details of the battery, brand, capacity, and so on with us?
Sent from my LG-P925 using xda premium
Sure,
it's a no-brand battery with 3500mah bought on amazon.
To my knowlage some members have had some issues with the generic batteries not being true to the rating its listed as. It would be best to take a multimeter and get a reading from a 100% charge out of the phone. Then drain the battery. Charge it on the craddle charger then take another reading and see what the difference is. You can also use the multimeter to read the charger itself and compare that to the phone's charge stats. If the craddle is pumping a lot more juice than the phone then there might not be much you can do. Please feel free to report your findings as this is all speculation without the data.
Sent from my LG-P925 using xda premium
Cab121 said:
To my knowlage some members have had some issues with the generic batteries not being true to the rating its listed as. It would be best to take a multimeter and get a reading from a 100% charge out of the phone. Then drain the battery. Charge it on the craddle charger then take another reading and see what the difference is. You can also use the multimeter to read the charger itself and compare that to the phone's charge stats. If the craddle is pumping a lot more juice than the phone then there might not be much you can do. Please feel free to report your findings as this is all speculation without the data.
Sent from my LG-P925 using xda premium
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Not exactly. The voltage of the charger had nothing to do with the voltage of the battery at full charge. li-ion batteries do better with a "fast charge", about 5V, but what is important here is the voltage of the battery at which the charger stops charging.
Sent from my LG-P925
Related
Hi all!
I was browsing through Samsung Galaxy S's Android Development Section when I saw this:
"11. Do NOT overcharge
--Why, when, where: Almost all new batteries have an overcharging protection. This means that the protection that is built into the battery will not let it charge to 100%. This is a feature, not a bug! This will help prolong your battery life while also keeping it safe from overheating/explosion/etc. Do not try to trick it and unplug and plug again until you see 100%, just get used to the fact that you can't have 100% battery anymore and live with it, or you risk destroying your battery."
posted by user "shantzu"
here:http://forum.xda-developers.com/showthread.php?t=939752
I did "calibrate" my battery many times lately by unplugging it when charging and the replugging it. But I sure know I wont do it anymore! It's your choice whether or not you wanna do it!
I just wanted you to know this! Hope I've been helpful!
Cool story bro
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pgill34 said:
Cool story bro
Sent from my Dell Streak using XDA Premium App
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+1, blablabla (sorry msg needed to be +10 characters, but it's more now and more and more and more )
eXtink said:
+1, blablabla (sorry msg needed to be +10 characters, but it's more now and more and more and more )
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I didnt say this. I just quoted and I said that I wont charge my phone to 100% with the plug-unplug way. So if you take my advise do so, if you don't want to take it please stop posting ****!
vladstercr said:
I didnt say this. I just quoted and I said that I wont charge my phone to 100% with the plug-unplug way. So if you take my advise do so, if you don't want to take it please stop posting ****!
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I dont think he was posting ****. He just wanted to post "+1" (as in "me too"), but needed to respect the minimum character limit for a post.
Badly worded, but it doesnt look like he was making fun of you or anything.
Sent from my Milestone using Tapatalk
I love this thread already
Isn't calibrating the battery all about fixing an Android bug?
Anyway, this reminds me, the Milestone overstates the full charge mV and underestimates the low battery mV.
So, if Battery Monitor Widget reports that I have 4230mV when it's fully charge and plugged in... it's really only 4170mV.
When it's reporting empty at 3200mV, it's really at 3300mV.
http://www.android-hilfe.de/root-ha...ku-infos-ladekurven-leistungsverbraucher.html
Externally measured or indication of the internal voltage measurement
3.30 volts / 3.20 volts
4.12 volts / 4.18 volts
That is, the stone over-estimated the voltage at the battery is full by ~ 60 mV and underestimated the power of up to 100 mV with an empty battery. The intent is well-battery protection (which is good too). It is pretended that 3.0 and 4.2 volts to discharge until it is loaded. In reality, there are more 3.1 volts and 4.15 volts (which by the way of battery manufacturers also better unanimous opinion!).
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Apparently, we are still protected even if we do calibrate the battery.
I'm pretty sure that Payce at android-hilfe actually took that battery out of his phone so I'll go with that.
Thanks for sharing
Good article
Over charging doesn't effect Lithium Ion batterys;
http://en.wikipedia.org/wiki/Lithium-ion_battery
DannyDroid said:
Over charging doesn't effect Lithium Ion batterys;
http://en.wikipedia.org/wiki/Lithium-ion_battery
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Gee thank you! I just wanted to start correcting this non-sense. The "overcharging" affects Lithium-Polymer batteries, not Lithium-Ion, so calibrating battery is HARMLESS!!!!
If you have a Samsung Galaxy S then you have this possibility.
I think we can close this thread.
Actually you can overcharge (any) battery, charging it to the higher voltages for higher capacity when used daily (as cell phones).
However it lowers total lifetime of the battery, but you can get more battery time.
But this isn't the cell phones' thing. IMHO charging circuit + circuits in battery won't allow you to do this. So you can't really overcharge.
This "calibrating" is even suggested by notebook manufacturers - you have to do full discharge -> full charge to set the voltage "limits" for 0% and 100%, so the battery indicator can estimate the remaining battery % precisely.
Just few quotations from http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries to support my opinions:
"In terms of optimal longevity, a charge voltage limit of 3.92V/cell works best but the capacity would be low."
"Should I disconnect my laptop from the power grid when not in use? Under normal circumstances this should not be necessary because once the lithium-ion battery is full, a correctly functioning charger will discontinue the charge and will only engage when the battery voltage drops to a low level."
"Partial discharge on Li-ion is fine; there is no memory and the battery does not need periodic full discharge cycles other than to calibrate the fuel gauge on a smart battery."
The milestone has a Lithium-ion polymer battery which looks like they do suffer from over charging.
"It is important to note that trickle charging is not acceptable for lithium batteries; Li-ion chemistry cannot accept an overcharge without causing damage to the cell, possibly plating out lithium metal and becoming hazardous.[5] Most manufacturers claim a maximum and minimum voltage of 4.23 and 3.0 volts per cell. Taking any cell outside these limits can reduce the cell's capacity and ability to deliver full rated current.
Most dedicated lithium polymer chargers use a charge timer for safety; this cuts the charge after a predefined time (typically 90 minutes)."
http://en.wikipedia.org/wiki/Lithium-ion_polymer_battery
Someone will have to dig deeper into the OEM charger to see if it has some sort of cut off.
the thing with timer seems pretty weird to me. Try charging your battery with very little current - why should you cut it off after 90 minutes? Makes no sense to me, but I'm not an engineer so there may be a fact I overlook.
At the same time with noting overcharge will damage battery cell you should point out that there is no way to overcharge the battery without charging the battery CELLS itselves (not whole battery pack with its circuitry) with your custom charger without monitoring voltage/current.
However - yes, you're right, battery cells can be damaged.
I assume it would be the charging unit itself (i.e. the plug) which as the 90min cut off.
Charging via a USB takes ages (supplied at 5V) and without the "plug" it prob wouldn't have a cut off so the chances of over charging would be higher but would require leaving it in for longer.
I'm not sure, I'm only a first year electriton and haven't touched on batterys.
DannyDroid said:
Charging via a USB takes ages (supplied at 5V)
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The "plug" is just 230V~ -> 5V- transformer so the only difference is current, supplied voltage is the same. Btw I leave my phone in cradle for extended periods of time (24h+) and nothing bad happened. When it's at 100% it stops charging so I don't expect anything to happen.
Same with notebooks - it charges to 100% and stops. E.g. HP does stop charging until battery level drops to 90% so it won't "trickle charge" or do many 99%->100% cycles. Dunno how does the phone charging work, because it says 100% all the time. This can be possibly a bad thing
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)
Sent from my SGH-I897 using XDA Premium App
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...
Sent from my SGH-I897 using XDA Premium App
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.
Sent from my HTC Sensation Z710e using XDA Premium App
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.
Sent from my SGH-I897 using XDA Premium App
I would like to suggest moving all the discussions regarding external charger solutions here.
I got this battery and plan to purchase a 2nd as soon as they are in stock again. I would like to find an acceptable external charger solution.
I'm not trying to hijack anyone's thread. I am ONLY interested in finding a solution to the external charger problem and not in all the other discussions regarding this battery.
me 2 , waiting for a charger just for the battery
Nothing to move really. There is an Anker charger you can mod, otherwise no other options.
Sent from my SAMSUNG-SGH-I317 using xda premium
I took my external battery charger I bought on eBay for like $3, opened it, moved the charging pins to one side to the other and can now charge my ZeroLemon externally when it's low on juice.
Granted it's not a 2ah charger so it takes a little longer to charge which I don't mind.
Sent from my SCH-I605 using xda app-developers app
90awdsm said:
I took my external battery charger I bought on eBay for like $3, opened it, moved the charging pins to one side to the other and can now charge my ZeroLemon externally when it's low on juice.
Granted it's not a 2ah charger so it takes a little longer to charge which I don't mind.
Sent from my SCH-I605 using xda app-developers app
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By a little longer, are we talking about 350mA charger you have in there? If so, we are talking about close to 27 hours to charger ZL9300 Plus, another thing I find bad with these charger, their ready light indicator is based on measuring the voltage of the battery to determine full charge, and it's not accurate. The mod I mentioned in my other thread for a ZL charger, whenever I get a full light on either with Zerolemon or Samsung or Anker batteries - when plugged into a phone it never 100% and have to charge up more...
the attached charger with z1 is a 1500mAh charger and i bought a 2100mAh charger which charges faster for sure.I wanna know does this harm the battery?i mean if it was ok why the sony didnt attached a 2100mAh or higher with its flagship!?
NiM72NiK said:
the attached charger with z1 is a 1500mAh charger and i bought a 2100mAh charger which charges faster for sure.I wanna know does this harm the battery?i mean if it was ok why the sony didnt attached a 2100mAh or higher with its flagship!?
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mAh tell you about the capacity of the battery. You can even use 1 million mAh.
..and no it won't harm the phone
It does reduce the battery life. Or at least have a little impact on it.
Sent from my C6902 using xda app-developers app
crohit911 said:
It does reduce the battery life. Or at least have a little impact on it.
Sent from my C6902 using xda app-developers app
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Battery life has nothing to to with the capacity of the portable battery? What are you talking about.
Every charging reduces the battery life. That's why it is recommended to only charge the phone when it is at 10-20% and try to charge it to full.
crohit911 said:
It does reduce the battery life. Or at least have a little impact on it.
Sent from my C6902 using xda app-developers app
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what exactly impacts the battery ? how a 1500mAh charger doesnt harm it and a 2100 does while its a 3000mah?
NiM72NiK said:
the attached charger with z1 is a 1500mAh charger and i bought a 2100mAh charger which charges faster for sure.I wanna know does this harm the battery?i mean if it was ok why the sony didnt attached a 2100mAh or higher with its flagship!?
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no it won't
it will just charge your phone slightly faster,
if there's more than 2000 input then the phone will put a limit on it. so it should be fine
The discharge rate.
I might be wrong though cause I didn't read properly.
But voltage does have some impact.
choihan06 said:
no it won't
it will just charge your phone slightly faster,
if there's more than 2000 input then the phone will put a limit on it. so it should be fine
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why 2000? what wrong with 2500mAh??!! I think 3000should be the limitation because more than that is going to harm it! isnt it right?
NiM72NiK said:
why 2000? what wrong with 2500mAh??!! I think 3000should be the limitation because more than that is going to harm it! isnt it right?
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Well the phone is designed that way, i mean sony engineers should be smarter than us so i assume its a best option.
When i use 2.0A galaxy note3 charger on my z1 it takes about 1500-1700mah but no more than 1700.
Sent from my C6906 using Tapatalk
I use a 12000mAh portable charger from New Trent and my phone battery is in perfect shape. It does not harm it in any way. I don't understand where the confusion is coming from.
http://www.amazon.com/New-Trent-iCarrier-Smartphones-Micro-USB/dp/B003ZBZ64Q
mAh is a capacity measure , the bigger the capacity the more times you can charge the phone on a single charge (and usually also the bigger and more expensive the battery)
It's the Amperes which are Voltage/ sec given to your phone that you should worry about. Pretty much all portable chargers are suited to mobile phones and should not cause any harm.
I thought you were talking about travel adapter charger..
Yes current provided and voltage matters.
Silly me I was confused between mah and Amperes..
Thanks man!
But I think he's refering to amperes. Cause the one provided with z1 is 1.5 amp. And the portable battery is 5 ah. So he bought a 2.1 ampere charger.
NiM72NiK said:
the attached charger with z1 is a 1500mAh charger and i bought a 2100mAh charger which charges faster for sure.I wanna know does this harm the battery?i mean if it was ok why the sony didnt attached a 2100mAh or higher with its flagship!?
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There seem to be quite alot of confusion here. I am sure you mean the output of the charger, but if you mean the capacity of a portable charger, then it doesn't matter if it is 1000mAh or 1000,000mAh. But if you mean the output of the charger, then we don't really have a clear answer as this was asked few times in the forum, but I will try to explain the conclusion we came to.
our phone is supposed to support quick charge 2.0 which means in theory, we can use chargers with ~4.0 A (if I remembered correctly). why sony used 1.5 A is not clear, but I don't think using 2.0 A would have any effect except slightly faster charging time. I have been using my SGS4 charger (with 2.0 A output) since I got my Z1 (since release date). Last time I looked for even more powerful chargers ~3 months ago, I found that chargers with 4.0 A output has not been released yet and will be released early 2014. When they are released, i will contact sony and see if I can use it with my Z1 as in theory this should mean half charging time. I hope this helps
it won't harm the battery
The higher mAh rating might not have a direct affect on your phone... But what you said that the battery charges faster is a cause of concern. Do check the output of the charger you got with the battery. If the current rating is higher than your stock charger then maybe you're phone circuits may have problems.
Sent from my Galaxy Nexus using Tapatalk
shem2409 said:
Battery life has nothing to to with the capacity of the portable battery? What are you talking about.
Every charging reduces the battery life. That's why it is recommended to only charge the phone when it is at 10-20% and try to charge it to full.
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Its the other way around, avoid going down to ~10% and try to keep it above 50%
Sent from my Xperia Z1
The higher charger will increase HEAT and heating is the battery most bigger enemy .. Thats it.
Sent from my C6903 using Tapatalk
I'm sure he meant the charge rate of the charger.
Maybe it won't affect at all since the charge current rate is set by the battery chip, not by the charger. What the charger label says is the max output current, not necessarily the actual rate.
Sent from my GT-N7100 using Tapatalk
Higher current may hurt abit, higher voltage hurts more
Been using the blackberry rapid charger but not overcharging the phone and its been fine, been using it for years. FYI, chargers are measured in volts and amps. The bb one is 2amp and 5 volts.
Sent from my C6903 using XDA Premium 4 mobile app
You cannot judge or decide anything, except you know what electronic part used by that phone which have specific normal rating and resist maximum ampere. So, everything you do with your charger is Gambling!! But, I suggest not too much the different
~~~
sent from Slim & Thin Andromax
Just found out HTC is going to release a charger that will charge any snapdragon 800 and above HTC device; 60% in 30 mins. I may actually get that depending on the price BUT then again I hardly ever need to charge my device more than once a day unless I didn't charge it overnight.
Also Motorola has a quick charger too. Not sure if its faster than the HTC one BUT it is compatible with HTC devices.
I wonder how much faster does it charge than the note 3 charger?
Sent from my HTC One_M8 using XDA Free mobile app
One thing to keep in mind though, charging the battery that fast can actually decrease the battery's life span. a healthy recharge would be a slow one. Yet i can see why some people would need a rapid charger.
This topic should probably go under the accessories.
Shu. said:
One thing to keep in mind though, charging the battery that fast can actually decrease the battery's life span. a healthy recharge would be a slow one. Yet i can see why some people would need a rapid charger.
This topic should probably go under the accessories.
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I agree 100%, its a simple fact in all battery's, faster charging means also less capacity from each charge and faster draining of battery and also shorter battery life in general..
From what I understand, this is not just a case of throwing more voltage and current up it.
The QC2.0 chargers are different. They utilise technology within the charger and the phone, I'm assuming to distribute the voltage and current in a stabilised battery friendly way. You can use a 2a charger on any device and it'll charge a battery quicker but risk reducing battery life. These QC2.0 chargers only charge Qualcomm devices rapidly. So they have to be different to regular chargers.
I'm lead to believe they kick out 9-12v at 2.1a.
Sent from my HTC One_M8 using Tapatalk
I'd assume HTC would work on trying to not weaken battery life span while charging at quick speeds.
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Ndaoud360 said:
I'd assume HTC would work on trying to not weaken battery life span while charging at quick speeds.
Sent from my HTC6525LVW using XDA Free mobile app
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It doesn't matter what software/hardware configuration is in it, as long as it's the same lithium polymer being used it will still be susceptible to stresses like deep discharges, charge voltage, temperature and load currents.
Also, the 60% in 30 min refers to Qualcomm's benchmark tests with a 3300 mAh battery. The M8 has a 2600 mAh batt.
100% in 30 minutes.... I'm drooling. For those long double days.
PcFish said:
It doesn't matter what software/hardware configuration is in it, as long as it's the same lithium polymer being used it will still be susceptible to stresses like deep discharges, charge voltage, temperature and load currents.
Also, the 60% in 30 min refers to Qualcomm's benchmark tests with a 3300 mAh battery. The M8 has a 2600 mAh batt.
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Yea your right. HTC said 40% faster charging.
It's quite a nice idea for people who travel a lot and always be on the way. I feel satisfied with my OEM though, charges a full cycle in 2.5-3 hours and I usually charge it at night so it's not a hassle
Does anyone know if there is any substantive data on whether chargers utilizing quickcharge 2.0 do, in fact, reduce overall battery life? I could see this being useful in some scenarios, but I like the battery life on my M8 and do not want to do anything to jeopardize it.
daboscovellen said:
Does anyone know if there is any substantive data on whether chargers utilizing quickcharge 2.0 do, in fact, reduce overall battery life? I could see this being useful in some scenarios, but I like the battery life on my M8 and do not want to do anything to jeopardize it.
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Not until end users have done extensive testing. Qualcomm and handset manufacturers and accessory manufacturers are hardly going to advertise this information.
I personally do not believe it will affect battery life drastically. As I said before, it's a technology utilising chips and software within the charger and handset. It's not like shoving a 2a or greater bog standard charger up it.
Sent from my HTC One_M8 using Tapatalk
Chris_c81 said:
Not until end users have done extensive testing. Qualcomm and handset manufacturers and accessory manufacturers are hardly going to advertise this information.
I personally do not believe it will affect battery life drastically. As I said before, it's a technology utilising chips and software within the charger and handset. It's not like shoving a 2a or greater bog standard charger up it.
Sent from my HTC One_M8 using Tapatalk
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BUT then again phone companies like to make your phone die quicker so you can buy their latest device. I don't HTC would do that so I believe they would try to make the battery stay the same length of time.
Ndaoud360 said:
BUT then again phone companies like to make your phone die quicker so you can buy their latest device.
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Of course, I'm assuming you have evidence of that statement!?
Sent from my HTC One_M8 using Tapatalk
Chris_c81 said:
Of course, I'm assuming you have evidence of that statement!?
Sent from my HTC One_M8 using Tapatalk
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It's just been rumored throughout the years. It's like how some companies like Version (rumored again that most people believe) force some manufactures to not have an sd card slot or something like that so people can use cloud storage which means using more data and possibly going over your monthly limit and paying extra per month for overages. Don't know how true it is but all this rumored.
Wife just got a Droid Turbo...I'll try to remember to do a test in the morning and report back...
I use my Samsung 5.3v 2a charger...I go from 0 to 100% in 2 hours that saved me over 30 min charge. Time...
Sent from my SM-P600 using XDA Premium HD app
Can you get this Rapid 2.0 charger by HTC is it out yet? HTC site says out of stock but I didn't know if it was even available yet or if anyone else had it. I tried to google it and couldn't find it anywhere. Someone at work stole my original HTC charger that came with my M8. I know HTC does there 50% off deals too alot on Tuesdays.
Rose4uKY said:
Can you get this Rapid 2.0 charger by HTC is it out yet? HTC site says out of stock but I didn't know if it was even available yet or if anyone else had it. I tried to google it and couldn't find it anywhere. Someone at work stole my original HTC charger that came with my M8. I know HTC does there 50% off deals too alot on Tuesdays.
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yeah they are out already. i bought two earlier this week. I just got them yesterday. haven't had alot of time to test them out. I believe the rapid chargers dont last long on their website. i been trying to buy one for weeks and it wasnt until last monday that i was able to purchase them
Any body know a quality cable to use with it?? My original broke and every syncing cable has been snotty at best