Im looking for an app or a way to see how much output my chargers actually have since I dont believe some of them
Sent from my SCH-I605 using Tapatalk 2
Well I use Battery Monitor Widget and it has a logging feature that saves a basic text file to your SD Card and it polls the battery every 1 minute (customizable down to I think every 5 seconds) where you can read the battery mA draw or charge.
When I would be on the AC Charger, the log showed an average peak of about 1.8A charging the phone. I believe the reason it doesn't show 2A ever is because some of the current is going negatively against the battery to power the device, thus reducing the actual gained mA.
Give it a shot. Maybe there's better options out there though.
DaRkL3AD3R said:
Well I use Battery Monitor Widget and it has a logging feature that saves a basic text file to your SD Card and it polls the battery every 1 minute (customizable down to I think every 5 seconds) where you can read the battery mA draw or charge.
When I would be on the AC Charger, the log showed an average peak of about 1.8A charging the phone. I believe the reason it doesn't show 2A ever is because some of the current is going negatively against the battery to power the device, thus reducing the actual gained mA.
Give it a shot. Maybe there's better options out there though.
Click to expand...
Click to collapse
Thanks that sounds good
Sent from my SCH-I605 using Tapatalk 2
I use a program called Elixir2. Its got a widget that you can set with mini buttons and all kinds of info. Its got options like battery voltage and battery current. The current will show the charge/discharge rate. Kinda helpful. That was how i figured out one of my car chargers was shot. With my thunderbolt, it was charging the battery less than my phone was pulling.... it slowed the battery drain, but didnt charge anything.
Sent from my SCH-I605 using xda premium
Related
Is it possible that if i use another device charger like blackberry or whatever compatible may give me a better battery life ? I saw on x8 forums a guy claimed using an htc charger and posted a screenshot where it showed up to 6 days of usage !
Thaanks.
Sent from my X10i using XDA Premium App
shahkam said:
Is it possible that if i use another device charger like blackberry or whatever compatible may give me a better battery life ? I saw on x8 forums a guy claimed using an htc charger and posted a screenshot where it showed up to 6 days of usage !
Thaanks.
Sent from my X10i using XDA Premium App
Click to expand...
Click to collapse
The charger is just a simple 5 volt power supply.
The charging circuits are in fact integrated into the device/phone itself.
You woulnd't be able to affect the battery capacity in any way by using a different charger.
I'd say that claim about improved battery life due to changing the charger is very unlikely. I'd call it a fake.
Perhaps improve charging time, but not improving battery capacity.
SysGhost said:
The charger is just a simple 5 volt power supply.
The charging circuits are in fact integrated into the device/phone itself.
You woulnd't be able to affect the battery capacity in any way by using a different charger.
I'd say that claim about improved battery life due to changing the charger is very unlikely. I'd call it a fake.
Perhaps improve charging time, but not improving battery capacity.
Click to expand...
Click to collapse
oooh thanks because the guy said the other charger was way more powerfull and it overcharged which caused an extreme change in his battery life but thanks anyways
shahkam said:
oooh thanks because the guy said the other charger was way more powerfull and it overcharged which caused an extreme change in his battery life but thanks anyways
Click to expand...
Click to collapse
Overcharging a lipo battery in a device such as the X10 (Lithium Polymer) would end up in either one of these scenarios:
Scenario 1: Phone and battery overheats, thermal protection kicks in and disables charging permanently.
Scenario 2: Phone and battery overheats, frying the internal charging circuits. Permanent damage.
Scenario 3: Phone and battery overheats, causing an explosion. Worst case: exploded battery catches fire.
Battery fires are tricky to put out and can cause major damage, not only to the device, but also to everything around it.
Don't worry tho.
As long as the charger, or whatever power supply you're using, gives 5 volt DC with correct polarisation, you'll be safe.
But as soon you fiddle around with different voltages, specially anything higher than 5 volts, it starts getting dangerous.
There is a common misunderstanding on how volts and currents works.
People tend to believe a charger with higher currents will do better. That is wrong.
It isn't the charger that "pushes" the current. It's the device that "draws" the current needed.
Example: If the device needs 700 miliamps, and the charger can give 5000 milliamps there will be 4300 milliamps left over.
In theory one could connect 7 devices to the same charger: 7x700=4900, and still have 100 milliamps left over.
What would happen if the device draws more than the charger can give? The device wouldn't charge at all, as the charger would "drop out" in one way or another by either shutting down, or lowering it's own voltage below "acceptable level"
SysGhost said:
Overcharging a lipo battery in a device such as the X10 (Lithium Polymer) would end up in either one of these scenarios:
Scenario 1: Phone and battery overheats, thermal protection kicks in and disables charging permanently.
Scenario 2: Phone and battery overheats, frying the internal charging circuits. Permanent damage.
Scenario 3: Phone and battery overheats, causing an explosion. Worst case: exploded battery catches fire.
Battery fires are tricky to put out and can cause major damage, not only to the device, but also to everything around it.
Don't worry tho.
As long as the charger, or whatever power supply you're using, gives 5 volt DC with correct polarisation, you'll be safe.
But as soon you fiddle around with different voltages, specially anything higher than 5 volts, it starts getting dangerous.
There is a common misunderstanding on how volts and currents works.
People tend to believe a charger with higher currents will do better. That is wrong.
It isn't the charger that "pushes" the current. It's the device that "draws" the current needed.
Example: If the device needs 700 miliamps, and the charger can give 5000 milliamps there will be 4300 milliamps left over.
In theory one could connect 7 devices to the same charger: 7x700=4900, and still have 100 milliamps left over.
What would happen if the device draws more than the charger can give? The device wouldn't charge at all, as the charger would "drop out" in one way or another by either shutting down, or lowering it's own voltage below "acceptable level"
Click to expand...
Click to collapse
Thanks for the very detailed explication ! I thanked you and i thank you lol
Sent from my X10i using XDA Premium App
The gs4 doesn't charge at 5.0 V and 2.0mA this new battery app proves it it only charges at 4.1v and 1mA using charger that comes with gs4
Sent from my SCH-I545 using xda app-developers app
is it possible the app is wonky or reading the phone incorrectly? mine charges up quickly and just fine. not sure how the samsung charger is fake...
gabrielpina4 said:
The gs4 doesn't charge at 5.0 V and 2.0mA this new battery app proves it it only charges at 4.1v and 1mA using charger that comes with gs4
Sent from my SCH-I545 using xda app-developers app
Click to expand...
Click to collapse
The app can only tell how much different the battery is, not how much juice is actually flowing into it. Meaning, the possibility exists that you phone is *using* juice while it's charging, lowering the amount of difference the app can see.
gabrielpina4 said:
The gs4 doesn't charge at 5.0 V and 2.0mA this new battery app proves it it only charges at 4.1v and 1mA using charger that comes with gs4
Sent from my SCH-I545 using xda app-developers app
Click to expand...
Click to collapse
Thread fail. Voltage output, as verified with a Fluke 77 Type IV multimeter, is spot on 5 VDC. Current, which is governed by the phone, has been verified by many to a max of 1900 mA.
I can see just from the screenshots that the app is detailing misinformation. Were your phone actually charging at the rate indicated, it would take approximately 26 days for it to fully charge, assuming no use, from the 76% in the screenshots.
Oftentimes you get what you pay for. Such is the case with Amazon's Free App of the Day sometimes.
najaboy said:
Thread fail. Voltage output, as verified with a Fluke 77 Type IV multimeter, is spot on 5 VDC. Current, which is governed by the phone, has been verified by many to a max of 1900 mA.
I can see just from the screenshots that the app is detailing misinformation. Were your phone actually charging at the rate indicated, it would take approximately 26 days for it to fully charge, assuming no use, from the 76% in the screenshots.
Oftentimes you get what you pay for. Such is the case with Amazon's Free App of the Day sometimes.
Click to expand...
Click to collapse
god among men
Sent from my SCH-I545 using xda premium
I know this is incorrect but even if I didn't, I still would not believe it was not 2amp. This phone charges scary fast.... so fast that I do actually use a 1amp charger. I don't hate my battery enough to charge it that fast
Sent from my rooted S4 blessed with Cleanrom 1.2
Help a newbie out.
I had an iPhone 5 that charged ridiculously fast compared to older phones.
When I'm charging my new S 4, how do I get the faster charge rate?
I'm currently using the Moto 2 USB wall outlet charger that came with my razr maxx hd. And it seems like it takes way longer then my five and I chalked it up to having twice the battery.
Is there a faster way to charge?
Sent from my SCH-I545 using xda premium
Rickinsav said:
Help a newbie out.
I had an iPhone 5 that charged ridiculously fast compared to older phones.
When I'm charging my new S 4, how do I get the faster charge rate?
I'm currently using the Moto 2 USB wall outlet charger that came with my razr maxx hd. And it seems like it takes way longer then my five and I chalked it up to having twice the battery.
Is there a faster way to charge?
Sent from my SCH-I545 using xda premium
Click to expand...
Click to collapse
Use the charger and cable that came with the phone.
Sent from my SCH-I545 using Tapatalk 4 Beta
najaboy said:
Use the charger and cable that came with the phone.
Sent from my SCH-I545 using Tapatalk 4 Beta
Click to expand...
Click to collapse
The new charger is amazingly fast, if thats a word. I was going to use my.old charger from the s3 at work but its so slow it barely keeps up with use and can't keep up if I'm running my wifi or playing games. Now I just need to find a car charger thats as fast as the new charger.
Sent from my SCH-I545 using xda app-developers app
Keep in mind there's more to it then just the wall charger's output ability. There's something in the S4 that recognizes the original sammy charger and turns up the charge rate yet will only allow a trickle charge on other non-sammy 2.1A wall chargers.
It appears that dome people are aware of this and have managed to modify the non-sammy chargers to enable the faster charge. Then there's some semantic confusion between "quick charge" and "fast charge" features that may be enabled in roms or kernels.
All I know is I wish there were more info on this stuff.
A little knowledge of how Li-ion batteries charge is an important thing. Li-ion batteries have special charging requirements.
The part you plug into the wall... thats not a charger... its a power supply. It provides a 5v DC output at up to 2 amps.
The charger is built into the phone, and it determines how to use that available power to charge and power the device.
Li-ion batteries charge in a two stage cycle that is called "constant current/constant voltage". It is also important to know that a battery's voltage drops as it is discharged. (this voltage drop is how the battery meter gets its information, as it is predictable when tested under constant loads... the variable load of a phone is why the meter seems to be inaccurate at times)
During the first phase, "constant current", the battery is fed a constant current at the same voltage as the battery is currently outputting. As the battery takes in energy, the voltage rises but the current is kept constant.
The second phase, "constant voltage" starts when the battery reaches its highest voltage. (or more accurately, its highest safe voltage, which is around 90% capacity) During this second phase, the battery is fed a constant voltage, (the max voltage) and the current varies. The battery will draw as much current as it is able, and this rate slows naturally as the battery reaches full capacity. When the current drops lower than a certain set amount, the charger stops the charging process and the battery is said to be fully charged. This second phase is slow compared to the first phase, and that is why it can seem like the last 10% of charge takes longer than any prior 10%.
Some phones use the power supply to both power the device and charge the battery, the battery is electrically isolated during charging... but most charge the battery without isolation. Either way, the power from the power supply is being used to both charge and power the device, and this limits the charging speed.
This also limits the maximum capacity the battery can be charged to while in the device, because the voltage/current measuring is less precise. Unfortunately for these phones, the charging is controlled by software, and not simple hardware circuits that are isolated from the battery power. In fact, even when charging the phone with the power off... the phone is still actually powered up but in a low power background mode. This mode is actually a special screen off recovery mode. CWM recovery has had several instances of bugs, where the phone could not charge if the battery died to the point of powering of the device. Because the phone could never power into the special mode to start charging, due to this special mode being missing from, or bugged in CWM.
Also... these batteries have on average a 2-3 year lifespan, and also limited number of recharge cycles. The 2-3 year life is the same even if the battery is unused. As the battery ages, it looses capacity.
Charging at slower rates is better for battery lifespan than higher rates. Now the batteries in the S4 and especially the Note 2 are larger, and 2A is still considered a fairly slow rate, but of course 1A is even better. If you tend to charge only at night while sleeping, it may be better to use a 1A charger.
Awesome explaination !!! That makes complete sense and explains things. The point made in a prior post, about the phone recognizing the new charger, thus charging faster makes sense as well. The new charger must "turn on " the quicker charging on the S3 as well, because it charges my old S3 as fast as my S4. I didn't try the charger on the older firmware but it definetly works with the latest update.
Sent from my SCH-I545 using xda app-developers app
I love my Mega. It is by far the best phone Ive ever had. But, the problems I have with the power usage and management on the device are a total nightmare.
1) The discharging nightmare:
The battery lasts NOTHING. Basically I get about 5 hours of use.. maximum.. no matter what I do.. and I have slimmed down to the ROM to having that NOTHING active.. I literally am left with active 6 services and I monitor CPU usage that is always near zero with NO apps hogging resources. From what I monitor on the device's battery usage, it's clearly always about 90% from the display! And yes, I dim the screen as much as I can of course, but usually not below 1/2way.. I hate screens too dim. However even just on standby with the screen off I still lose about 5% to 8% of battery an hour. Worse, even with the device Powered OFF, I still lose about 20% of battery a day. The ONLY way I have found out to control battery drain completely, is to take the battery out. That's it. Anyone else with similar symptoms and a fix or, is just that the stock battery totally sucks??? Also, any other off brand batteries are any better?.. (not the fat ones rated at much higher amps but that have an extra bulge.. that I don’t want)..
2) The charging nightmare:
This to me is the worse problem. It is bad enough how quickly this device issues battery, bit not nearly as bad as trying to charge efficiently again. I now have tried 3 different chargers/brands (and cables) to try fix the charging problem that is, it takes HOURS and HOURS to charge the battery. I am talking 5 to 6 hours to get it charged and if the screen is on and Im using the device it actually charges NOTHING at all and still keeps discharging (albeit much slower of course)... the fact is that the charging process is so pathetically slow that is less than real-time which means, with the device connected to power supply, the battery STILL drains if I try use it. This is absurd. However, mysteriously enough I have found ONE way that charges the phone super fast.. using a SONY External Power Pack (model CP-F1L) rated at 2200mAh. This is seems crazy because the power output of an external power pack should be much lower than the stock (and other Samsung) USB chargers.. but, it's what works.. the ONLY thing that works. And I have noticed that when connected to a USB Power charger, the Mega's Red LED light turn on faded.. however, when connected to the SONY External Power Pack, is bright red. Clearly more juice going in.. or something like that. Again, anyone else with similar symptoms and a fix the charging time, or, any good recommendation on a extra strong USB power adapter/charger that will make this thing at least charge faster?
Thanks in advance for the input and advice:silly:
Sounds like something is not letting your phone sleep or the battery is defective. Try putting CPU spy on it and let it set for a while. Then check to see if it is getting into deep sleep or if it is even stuck at a certain frequency.
There is an app on the playstore called Galaxy charging. Try it to see what rate it is charging. Though with the rate your phone discharges, the charger may only being supplying an amount just over the drain rate which is why it takes so long to charge.
Sent from my SAMSUNG-SM-N900A using XDA Premium 4 mobile app
Yes this is not normal, I get five hours screen time on fifteen hours usage.
Sent from my GT-I9205 using Tapatalk 2
Yep, something wrong there. I'm stock and this thing won't quit :good:
I would flash the stock rom back into your phone and see how the battery works then as this not normal as mentioned by other members as I am still on the stock rom but rooted only and I have great battery life.
That is were to start by flashing the stock rom and if no change then battery or maybe a hardware problem.
Did you have good battery life before you starting flashing with the phone or did this occur after the stock rom was removed and custom rom with stuff removed to gain performance?
Sent from my SGH-I527M using xda app-developers app
Sometime i got 96% bug
Battry is fully charged = 100%
remove charger
Reboot device
Suddenly Battery become = 96%
ps000000 said:
Sometime i got 96% bug
Battry is fully charged = 100%
remove charger
Reboot device
Suddenly Battery become = 96%
Click to expand...
Click to collapse
You could try to remove the battery from the phone for about 5 secs and re-install and see it that helps as sometimes if you take the charger off as soon as it is done charging it might not show 100% at times when booting as I leave mine on for a bit longer and it seems to help..even though charge light is green..I leave it longer on.
If your phone is rooted get a app called battery calibrator from the google store as it is free and install it and just before you shut down the phone to charge wipe the battery stats with this app and then shutdown phone and fully charge and then see how the battery works after the battery stats wipe as that can usually help.
Sent from my SGH-I527M using xda app-developers app
,,
,,
..
Mad383Max said:
Sounds like something is not letting your phone sleep or the battery is defective. Try putting CPU spy on it and let it set for a while. Then check to see if it is getting into deep sleep or if it is even stuck at a certain frequency.
There is an app on the playstore called Galaxy charging. Try it to see what rate it is charging. Though with the rate your phone discharges, the charger may only being supplying an amount just over the drain rate which is why it takes so long to charge.
Click to expand...
Click to collapse
Thanks for the tip. Installed the app you recommend, now I understand better. With the stock Samsung USB charger I get 420 readings. With the other 2 chargers I get 500 and 540. However, with the Sony External Power Pack I get 1900!..no wonder it charges super fast with it! My question now is what's up with all the USB chargers I have? I even tried my old Galaxy Tab 7 charger (strongest rated charger I have) and still only feeds 480. This is all so bizarre. So, where to get a super strong charger for the Mega?
(sorry.. by whatever reason my reply got posted 4 times.. so strange. I try delete the first three but cant)..
VeEuzUKY said:
Thanks for the tip. Installed the app you recommend, now I understand better. With the stock Samsung USB charger I get 420 readings. With the other 2 chargers I get 500 and 540. However, with the Sony External Power Pack I get 1900!..no wonder it charges super fast with it! My question now is what's up with all the USB chargers I have? I even tried my old Galaxy Tab 7 charger (strongest rated charger I have) and still only feeds 480. This is all so bizarre. So, where to get a super strong charger for the Mega?
(sorry.. by whatever reason my reply got posted 4 times.. so strange. I try delete the first three but cant)..
Click to expand...
Click to collapse
Usually when this happens there is something wrong with the USB cable not necessarily the charger. Is the sony cable a USB type cable or a hard wired one? If it is USB type try using it with the other chargers and see what your results are.
Sent from my SAMSUNG-SM-N900A using XDA Premium 4 mobile app
Mad383Max said:
Usually when this happens there is something wrong with the USB cable not necessarily the charger. Is the sony cable a USB type cable or a hard wired one? If it is USB type try using it with the other chargers and see what your results are.
Click to expand...
Click to collapse
Yes indeed I notice the Sony Power Pack cable is short and thick. The Samsung cable is long and thin. I get much higher charging power using the thick short cable. Maybe I need go shop for a proper longer/thicker cable.
VeEuzUKY said:
Yes indeed I notice the Sony Power Pack cable is short and thick. The Samsung cable is long and thin. I get much higher charging power using the thick short cable. Maybe I need go shop for a proper longer/thicker cable.
Click to expand...
Click to collapse
I've certainly found the USB cable makes a big difference to the charging speed. I got a couple of 2m cables off Ebay and they're hopelessly slow, but the stock Samsung cable is fast. I just wish it was a bit longer!
I have the same issue
I have the Sprint Mega. Not refurbished and original factory state but I have horrific charge/discharge issues. Right now, my phone just got to 100% charge which I then unplugged the charge cable. Within 5 mins, I went from 100% to 96% and it is losing battery even quicker.
VeEuzUKY: It's been a while but do you still have this phone? Any updates? I should prob invest in a thicker USB cable like you've describe. It has the most charge rate.
I got my mega 6.3 last week. Since then it has said 100% charged... even when charging or dead. So I got a new battery thinking it was the battery but its obviously not and im not sure what it is that could be the problem. Im not sure if its crucial for my phone, if it can be fixed easily and cheaply, or if I need to return my phone to the place I bought it from.
If I leave my phone connected to the charger overnight will it destroy the battery? Approximately 6-7hrs
Sent from my C6833 using xda app-developers app
Nope(?) @hamdogg
Sent from my C6833 using XDA Premium 4 mobile app
angel.grin said:
If I leave my phone connected to the charger overnight will it destroy the battery? Approximately 6-7hrs
Sent from my C6833 using xda app-developers app
Click to expand...
Click to collapse
Nope. Thats fine... they have an automatic shutoff mechanism built in to prevent overcharging.
- Fully charging and discharging the Lithium-Ion batteries 3-4 times will allow the battery to reach its maximum rated capacity
- Don't ever leave your phone discharged for long - the batteries do self-discharge and the charge could drop low enough to damage the battery
Not Ultra owner (but tend to buy one in near future) but just to make sure, buy some electric plug with timer built in, so it will turn off after some time..
Hmmm.. i should post a guide on all the stuff I found out... here is some of the most useful
Buying cheap: Save money... but do you?
A charger can have an adverse effect. Often, cheap chargers won’t respond so well to the shutoff mechanism in the phone.
Every cheap charger I tested allowed energy to come through in sporadic bursts, which isn’t good for your battery’s life. For example I bought a $2 micro USB charger and testing the pull inside my device ranged from 500 to 1200 mAh. The official Samsung cable allowed 1000-1200 mAh to be pulled. They both charged in similar times, (1 1/5 hours and 2 hours) however I instantly threw the cheaper USB cable in the bin. The battery should handle this ok... SHOULD.... but the cut off circuit inside your device may not function correctly, which would be tragic!
Test this yourself. Plug your phone into your charger and then into the auxiliary input in your stereo. If the audio becomes fuzzy and distorted, then you can be pretty sure that your phone’s battery might not be enjoying whats happening. Swap that power source out for one with proper insulation, and the audio should be crystal clear.
Calibrate your phone’s battery level indicator about once per month. You can do this by running your device until it dies... (0% battery)
The leave it alone for five hours, before fully charging it. This will enable your device to report the battery correctly.
Hi,
I’m sorry if this question was asked before, I'm planning to buy samsung galaxy s21 and one feature that I'm fond of is to use it as a desktop replacement. The phone would be constantly plugged in for dex use and also would be used as a regular phone. I'm concerned however, will it affect battery life when the phone is constantly plugged in. If the battery is full, shouldn't the phone use the power from the outlet directly and not use the battery at all? It seems logical that battery use should be turned off while using it directly from charger, but reading from the web I got the impression that phones usually use battery even when using a charger, that battery will always be used. Is perhaps that dependent from the price of the phone, that the cheaper phones still use the battery and premium phones can intelligently turn off the battery while plugged in and use the power outlet directly?
From what I've observed using a meter that reports milli amps of the battery, charging shows a positive rate. Discharge shows a negative rate.
But when plugged in, even fully charged, it shows 0 most of the time.
This means it's using the power supply for the whole load.
Sometimes a blip to 300ma but that's probably just a self test of the battery to verify capacity under load.
robnitro said:
From what I've observed using a meter that reports milli amps of the battery, charging shows a positive rate. Discharge shows a negative rate.
But when plugged in, even fully charged, it shows 0 most of the time.
This means it's using the power supply for the whole load.
Sometimes a blip to 300ma but that's probably just a self test of the battery to verify capacity under load.
Click to expand...
Click to collapse
thank you for your insights into this. I don't have experience with premium phones, I only know that on cheap ones the battery suffers greatly with being plugged in. I'm looking forward to try out s21
daniel2233 said:
thank you for your insights into this. I don't have experience with premium phones, I only know that on cheap ones the battery suffers greatly with being plugged in. I'm looking forward to try out s21
Click to expand...
Click to collapse
S21 also allows you to limit battery charge to 85% for battery life.
I can confirm when using that stop, the current flow is essentially 0 when plugged in or on wireless charging according to the app I use, cool tool overlay.
If you want to check, try accubattery or cool tool.
Cool Tool - system stats - Apps on Google Play
Coolest tool ever. Because it always on top
play.google.com