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General battery questions and doubts

Well I'm little confusing now .
I have 2 charges.
One with out 5v 2000mah
Two with out 5v 10000mah
I noticed by my self but I need to be sure, big cables delays charge?
Before new systems, like ics and others updates on HTC Systems.
I always charged my phones with 1A.
Now even with 2A charger, some times my phone does not charge. Including some times if I use phone while charging battery decreases.
Maybe it is happening cause of my big cables?
What Is the influence of cables on wall charges?
Roms got influencing the charge time?
Sent from my HTC One X using Tapatalk 2

Actually out of the only 3 charging options I have the walk charging is the longest. Will reviece full charge in
3 hours but via computer about 7 and just over that for ps3. Surely isn't wall charging always meant to be the most efficient way? When you said big cable, how long? Is it a USB extender? If so I'd say its the cable having problems, generally at the point of transfer from the original USB cable to the extended one.
Sent from my Sensation using XDA

Well, longer cables means more resistance. Ohm's law says higher resistance, lower voyage and current. Longer cables could explain it in theory, but unless the cable is like 100 feet, I wouldn't be too worried.
Not sure where the issue lies.

Well, it's as simple as this, if you connect to a PC, the current through the USB cable is lesser (500-800mA). This means it will take a longer time to charge the device.
Now, for HTC standard wall socket charger, the output is 1A.
There are chargers that will definitely charge your phone faster, but it wouldn't be recommended as it will heat up the battery.
Now, as far as cables go, length isn't that important if we are talking about something less than 2-3 meters. But if you use an extension, there will be some current loss and also, if the extension quality isn't good enough, it will carry lesser current & take longer to charge your phone.
Also, it would be a good idea to leave your phone for a 5 hour charge on the standard HTC charger and then re-calibrate your battery. Often, a fresh ROM install may not give you the correct battery readings. So, charge to 100% and re-calibrate by flushing the battery stats bin file.

Well, the cables that i use is with more or less 4 meters.

brenopoubel said:
Well, the cables that i use is with more or less 4 meters.
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I think that one of the cables you use is bust then. It is true that longer the cable the increased reistance but its not even noticeable. Try experimenting with different cables and to see which one is deffective.
Sent from my Sensation using XDA

Chargers amd charging

Is it bad to charge your phone with chargers other than the stock one. If so why? And whats the point jn different voltages
Sent from my Galaxy SIII

I would not to that, maybe that charger have different voltage
Sent from my GT-I9300 using xda app-developers app

Charging with any other charger will affect your cellphone's charging timeif the stock charger you use has a higher voltage than the one you are charging with then the cell will charge at a lower rate and will take more time then the stock charger would take.
This may not harm if you do this once in a while, but on the other hand if you use a charger with higher voltage than the stock charger it will harm your cell for sure.
Point is, use the stock charger or any other charger with similar voltage.

Assuming that your phone uses a standard USB connector fir charging, the voltage will always be the same. It is the current which changes.
Using a charger which can deliver a higher current is not a problem as the phone will just take what it needs. Using one with too low a current will result in your phone charging slowly though.

Charging slow???

Out of the blue I noticed my S3 was charging very slowly, it even was losing a charge while it was plugged in while I was using it. I figure it had something to do with my custom ROM so I reflash, still same outcome. The battery was still holding a good charge, so I figured it was something else. I then went out and bought a new charger, which came with a micro usb cord to see if that helped. Plugged in the new charger while using my old micro usb cord, still same outcome. Then used the new micro usb cord and old charger, charging went back to normal, problem solved! I would of never thought that the cord would malfunction from day to day use after such a short lifespan. Moral of the story, check your cords if you experience the same problem, it could save you some time and money!

I bought some cheap ones off Amazon. They won't charge the s3 but will my touchpad. But my s3 charger won't charge my touchpad. Stuff is weird at times.
Glad it was an easy fix.
Sent from my SCH-I535 using xda app-developers app

Must have been charging in USB mode.
Sent from my SCH-I535 using xda app-developers app

I believe it, using my old galaxy nexus cord for my s3 charges extremely slow (like 200 mAh) for some reason. I switched to a different cord and now it's all good, I have no clue why but that's how it is.
Sent from my SCH-I535 using Tapatalk 2

That's weird mine started doing the same thing just in the past few days. I have to unplug and plug it back in multiple times before it goes into AC mode
Sent from my SCH-I535 using Tapatalk 2

I really think that those cheap cables don't charge nearly as fast. Especially the Stock Sammy ones. I use the thicker LG cables and they seem to charge so much fast and transfer files faster..

I just went through the same thing. The phone was charging for twelve hours and only gained 50 percent. Took forever to figure out it was the cord.
Sent from my SCH-I535 using xda app-developers app

USB Cable
I think charging AC is not fast charge.
You should to charge USB cable.
Thanks.

cell128 said:
That's weird mine started doing the same thing just in the past few days. I have to unplug and plug it back in multiple times before it goes into AC mode
Sent from my SCH-I535 using Tapatalk 2
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That's what my phone was doing, I'd unplug then plug it back in and would go from USB to AC, but it still charged slow. That cable, no matter what it said, would still charge slow as balls.
Sent from my SCH-I535 using Tapatalk 2

I had heard of "Buy Cheap, Buy Twice", but now we've got "Buy Cheap, Charge Twice"

A lot of times it's the DC power brick that makes the difference. Not all of them have the same power output. Rarely, if ever, is it the actual cord itself. USB cables use pretty thin gauge wire already and the only way you're going to get a difference from one cable to another would be if it was REALLY cheap and using an ultra-thin wire or if it was a REALLY long cable (increases in cable length equate to increased resistance to electrical transmission...)
All USB cables are 5 volts. However, there can be significant differences in the milliamp output for each DC adapter. Aside from being a computer geek and gamer who builds custom PC's, I happen to be a hotel General Manager. I just checked our catch-all box of phone chargers and found that while every charger has an output of 5v, the amperage put out varied from 350 mA to 1000 mA from one charger to the next.
This variance in output is why some chargers take so long as compared to others. I don't know what the actual Samsung charger output is, since my charger is at home, but my guess is it's between 800 and 1000 mA.

I use the stock BB charger to charge both my 9900 and GS3, the BB charges pretty normal but lately I've been having a problem with the charging time on my S3, I have to charge it everyday now, my usage isn't that heavy, it lasts me a day and a half normally. Going to start using the stock charger to see if there is a difference.

I'm using the Samsung stock charger after not having used it for a month and noticing that my battery levels have deteriorated after using my BB stock charger. The battery seems to be discharging while on the charger! I'm in for a world of pain, going to monitor it for a while. I could be stressing over nothing.

Phone not charging while using GPS due to overheating

This is a continuation of the discussion that was started here. Since I do not want to crowd that thread with an offtopic subject, I am continuing here. I am quoting the relevant posts from that thread also.
unni_kmr said:
One issue bothers me a lot. I cannot use the phone for navigation for more than 2 hours even with car charger connected. In about 2 hours, it drains out fully. My latest theory is that after about 30 mins of charging, the battery starts heating up, and so it stops charging.
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mtdew said:
User error or bad unit I have zero issues with my GPS or car charging. Also what amperage is your car charger capable of outputting.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
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unni_kmr said:
I am not 100% sure in terms of the amperage. But I tried with a car charger capable of charging a laptop, using the wall charger and cable which came with the phone. I was sitting in the passenger seat, phone was in my lap (not mounted in windshield) and Google Maps was running in navigation mode. For the first 15 minutes or so, I saw that the phone was charging. The charge level increased by 1% or 2%. After I think 20 minutes, it stopped charging. CPU-Z app was showing battery status as
health: over heated or heated (don't remember clearly the text)
power source: connected
status: not charging or discharing
Phone's back was very hot. I unplugged the USB cable and connected it back, and it started charging again! I waited for it to cool down, removed the phone case, repeated this and got the same result.
This is why I believe the phone is doing something to protect it from over heating. I am not sure though.
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mtdew said:
Amperage is important son too little it will discharge, I think it will limit if too much. Nav can cause some heat for some of these guys but I've never heard of it getting that high my guess is something was wrong.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
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acejavelin said:
I have gotten my last few chargers at Sam's Club, they are about $10, and are rated at [email protected]
In an older phone I had a similar issue where my phone would overheat and not charge properly, once I got a new charger I cut the end off the old one and read the voltage with a meter, it was putting out almost 7.1v (should be 4.75-5.25vDC for USB 1.0-2.0 standard, and 5.25-5.75vDC for USB 3.0), pretty sure that is what caused it... cheap components equals cheap quality and flaws. Current rating should be irrelevant, as long as it meets the devices minimum requirements (most modern phones are [email protected]), even if a charger is rated at 2, 3, or even 5 amps, the device should not draw more than it can handle. Current is drawn, not pushed, a device will draw the needed current at the expected voltage, you can't really "over-current" a device by using a power source that is rated at the proper voltage but a higher current. Similar instance can occur by using a charger that has too low of a current rating, the device will try to draw more current than the adapter is rated at and the adapter will eventually fail or fall out of specifications.
Some other good chargers are by Anker, PowerGen, or RAVPower, and of course a Samsung branded adapter will work well, most all of these can be purchased for $8-$15 on Amazon. If the adapter is not rated with a current rating, then skip it, it is probably only 600ma-750ma and will be more headache than it's worth in the long run.
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bps119 said:
Good to see that we're getting a new user who actually does their homework. :thumbup:
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
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technoid1964 said:
The Skyrocket (and several other Samsung phones) need special "type 2" chargers. Apple charges are type 6, so if it says compatible with Apple, don't use it as it may not work. If the two center pins on the USB port doesn't have a 50 ohm resistor across them (or not shorted) , the Skyrocket will only draw 350 mA. Samsung and older Curve BlackBerry chargers have the resistor. At 350 mA, the phone draws more than the charger is providing, and the charger circuitry heats up trying to keep up with demand.
Jrockttu has a great thread under General called "Fix your Skyrockets battery life"
I've MOD'd all of my chargers, now my phone is happy with the screen on all day while driving and it stays charged, or charges slowly...
Tim
Sent from my SAMSUNG-SGH-I727 using xda app-developers app
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To eliminate the possibilities mentioned above, I bought the following:
1. Car Charger: PowerGen Black 3.6Amps / 18W Dual USB Car charger
2. USB Cable: Mediabridge USB Charging Cable
I also installed this app (Skyrocket Charger Info).
Summary of what happened:
With new car charger: Fast Charge (A/C) - Charging at 898 ma
With old car charger: Charger Wakelock - Charging at 497 ma
When connected to mains using factory charger: Fast Charge (A/C) - Charging at 898 ma
When connected to PC USB port: Slow Charge (USB) - Charging at 497 ma
Even with this new charger, phone stops charging once it heats up.
The full story:
Once I plugged in the phone to the new car charger using the new USB cable, the app showed the charging current as "Fast Charge - Charging at 898 ma". This is the same mA value it shows when I plugin into the mains with the phone's factory charger. I drove around with maps for around 15 minutes. Once I stopped, I saw that charge level had dropped by around 9%. I immediately launched CPU-Z app. It was showing battery overheated & not charging (see attachment 1). The phone was hot.
I removed the charger. After I think 1 minute, the battery status became 'good'. I plugged in the charger again. It started charging. While I was looking at the CPU-Z screen, battery status changed from 'good' to 'overheated' and 'charging' to 'not charging'.
Attachments:
(Please note that these screenshots are from another test where I had driven for around 30 minutes, and is not based on the above story.)
1. Phone state once I stopped the car. Charger is connected, but phone is not charging. Note that ignition is on.
2. After removing the charger.
3. After connecting the charger again. Within a few seconds of taking this screenshot, it changed to what is shown in attachment 1.
So I guess I can't do much about this, right?

I can't remember if you replaced the battery or not.... That could also be any issue if it's getting old and can't absorb the charge as fast as it used to... It will heat up quicker.
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

How old is your battery? And how many times a day do you plug it in?
Sent from my SAMSUNG-SGH-I727 using xda app-developers app

Sorry. I somehow missed your replies.
technoid1964 said:
I can't remember if you replaced the battery or not.... That could also be any issue if it's getting old and can't absorb the charge as fast as it used to... It will heat up quicker.
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I will try to purchase a new battery if its not too costly.
hotbyz168 said:
How old is your battery? And how many times a day do you plug it in?
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My phone and battery are now 18 months old. When I am in office, I charge it twice. It doesn't drain much, but I keep it fully charged just before leaving office.

Phone can overheat when under direct sunlight with GPS, screen and CPU working (the most power-consuming activity on the phone happens to be navigation), and also charging. Nothing unusual in that - its internal temperature in this case can reach beyond 100 degrees C. The battery can't charge when above 60-70 degrees C, because it can get physically damaged or even explode.
Concealing the phone from direct sunlight might work.
Limiting the CPU frequency might work.
A new battery might work.

Sony Charger not the one which came with the Phone

I have bought a new USB charger which is of 2Amph. It charges my phone amazingly fast even if i am using the phone. however the problem arises at the last point of charging that when the percentage is at 96 percent phone charges very slowly. i would like to Know if this is a problem or does it happen with all chargers?
Model : CP- AD2 2.1A output with saperate USB cable. (Looks genuine) which also come with one year warranty.

coolrevi said:
I have bought a new USB charger which is of 2Amph. It charges my phone amazingly fast even if i am using the phone. however the problem arises at the last point of charging that when the percentage is at 96 percent phone charges very slowly. i would like to Know if this is a problem or does it happen with all chargers?
Model : CP- AD2 2.1A output with saperate USB cable. (Looks genuine) which also come with one year warranty.
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I think it's a protection feature of the phone. And anyways 96 percent should be more than enough for a full day's use

The Xperia quick-charging kicks in, because you use more than 1.5amps charger.
Xperia Z will consume about 1.3A - 1.5A usually, even if your charger is sooo big, e.g 10A
But, the fast charging must stopped somewhere near 85%, and even slower at 95%, this is because the lithium-ion or lithium polymer safety consideration
at 95%, the phone charge the battery at about 100-150mA,that's why soooo slow to reach 100%

Thanks for the info guys.
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