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So I went on a 2 hour trip using my EVO as a gps. I had it plugged into the car charger the entire time. Little did I know the EVO was using the battery faster than it was charging. I've done this many times with the EVO 4G with no problems. Any suggestions? The phone is basically useless as a gps for any long distance trips. The battery will never last.
Sent from my PG86100 using Tapatalk
get current widget, it tell you how fast your phone is charging, and when unplug how fast your phone is draining in mah, note your mah usage when unplug, then note your mah usage when battery is fairly low and plugged in to charge with the car charger.
if your battery is low (below 50%) and your phone still won't charge faster than 500mah on the car charger, it will not keep up with GPS uses, be aware that as the battery approach full, it charges slower and slower, near 97~99% it will only charge @ about 100mah rate.
I bet you have a cheapy car charger that only supply 500 mAmp, get one that can supply 1000 to 2000 mAmp (1A to 2A... 2A usually for DUAL usb outlet type charger)
deleted... double post hmmm
Mine wasn't charging unless it was plugged into the wall until I typed ##3828# and checked "enable USB charging". Now it charges while plugged into a computer or car as well.
Password is your MSL, lots of posts how to get it. Not responsible if you mess your phone up.
Sent from my PG86100 using XDA Premium App
bitslizer said:
get current widget, it tell you how fast your phone is charging, and when unplug how fast your phone is draining in mah, note your mah usage when unplug, then note your mah usage when battery is fairly low and plugged in to charge with the car charger.
if your battery is low (below 50%) and your phone still won't charge faster than 500mah on the car charger, it will not keep up with GPS uses, be aware that as the battery approach full, it charges slower and slower, near 97~99% it will only charge @ about 100mah rate.
I bet you have a cheapy car charger that only supply 500 mAmp, get one that can supply 1000 to 2000 mAmp (1A to 2A... 2A usually for DUAL usb outlet type charger)
Click to expand...
Click to collapse
Can you point me in the direction of a 1000/2000 chargers?
ianoob said:
Mine wasn't charging unless it was plugged into the wall until I typed ##3828# and checked "enable USB charging". Now it charges while plugged into a computer or car as well.
Password is your MSL, lots of posts how to get it. Not responsible if you mess your phone up.
Sent from my PG86100 using XDA Premium App
Click to expand...
Click to collapse
So i enabled usb charging and when I go back into the ##3282# menu it it always reverts back. How do you get it to stick.
Sent from my PG86100 using Tapatalk
bitslizer said:
get current widget, it tell you how fast your phone is charging, and when unplug how fast your phone is draining in mah, note your mah usage when unplug, then note your mah usage when battery is fairly low and plugged in to charge with the car charger.
if your battery is low (below 50%) and your phone still won't charge faster than 500mah on the car charger, it will not keep up with GPS uses, be aware that as the battery approach full, it charges slower and slower, near 97~99% it will only charge @ about 100mah rate.
I bet you have a cheapy car charger that only supply 500 mAmp, get one that can supply 1000 to 2000 mAmp (1A to 2A... 2A usually for DUAL usb outlet type charger)
Click to expand...
Click to collapse
Also, I have a decent charger. It's one of the ones that has two ports on it. By the way I was only charging the EVO 3D I didn't have anything else connected.
Sent from my PG86100 using Tapatalk
billyapd21 said:
So i enabled usb charging and when I go back into the ##3282# menu it it always reverts back. How do you get it to stick.
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Click to expand...
Click to collapse
Usually in that mode you have to click menu then hit commit modifications..
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billyapd21 said:
So i enabled usb charging and when I go back into the ##3282# menu it it always reverts back. How do you get it to stick.
Sent from my PG86100 using Tapatalk
Click to expand...
Click to collapse
After checking the box, hit menu apply changes
Sent from my PG86100 using XDA Premium App
I've never had a problem using this older but more powerful iGo AutoPower 3000 car charger. Overstock has them for $6.50+shipping and you get a bunch of power tips with it but not a microUSB tip.
http://www.overstock.com/Electronics/iGo-AutoPower-3000-Car-Charger-Power-Adapter/3668307/product.html
The power specs on the package I have say:
DC Input: 11.5-16 VDC
Power Output: Up to 15 Watts continuous
Radio Shack sells the iGo a97 tip for $10+taxes but Amazon has the tip for $6+shipping(free shipping if you have prime).
http://www.amazon.com/iGo-Kindle-Motorola-RAZR2-KRAZR2/dp/B0012J52OC/ref=sr_1_1?ie=UTF8&qid=1310316568&sr=8-1
From my understanding, the tips have a resister in them which limits the mAmp output but I'm not sure what the a97 tip specs are since iGo doesn't seem to release that info. Hopefully it's 1A like the wall charger. I can verify that the newer single output iGo chargers are limited to .75A. So even if the tip is 1A, the charger is the limiting factor, hence why I recommend the older, more powerful one.
billyapd21 said:
Also, I have a decent charger. It's one of the ones that has two ports on it. By the way I was only charging the EVO 3D I didn't have anything else connected.
Sent from my PG86100 using Tapatalk
Click to expand...
Click to collapse
Read the label on the charger, make sure it say at least 1A or even better 2A
lots of cheapy dual USB on ebay that's not rated for 2A
if you got a 2A charger and current widget still show 500ma charge rate,
then you may have to figure out if your phone is charging in USB charge mode with the car charge (limit to 500ma by the phone per USB spec) or in AC charge mode (charge at up to 1A)
I just came across this other day that point out this problem.
http://www.amazon.com/gp/customer-m...B9U8Q/ref=cm_ciu_pdp_images_3?ie=UTF8&index=3
look at the mouse over box comment... of course every charger is different so don't just blindly do the mod if you have a different charger.
as for the other guy asking for 2A charger....
Ebay and Amazon have alot, just make sure they specificly say 1A for single USB or 2A for dual USB output.
for 2A dual USB, the OEM HTC thunderbolt one seem to be the best but also most pricey, some alternative are the Motorola dual usb and the Tmobile my touch 4g dual USB
MRBULLRED said:
Usually in that mode you have to click menu then hit commit modifications..
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Click to expand...
Click to collapse
It's weird, I click the box for usb charging then click commit changes and a little box pops up "no changes made" I'm not sure how to save the changes.
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billyapd21 said:
It's weird, I click the box for usb charging then click commit changes and a little box pops up "no changes made" I'm not sure how to save the changes.
Sent from my PG86100 using Tapatalk
Click to expand...
Click to collapse
Test it, it may have taken
Sent from my PG86100 using XDA Premium App
Was having the same issue;
I used the car charger I had for my EVO, left it on for 3+ hrs, with little to no increase from where I put it on at. Ended up using a buddy of mine sharger and viola. Imex99 explained the reason for it. Just buy a new charger with 1A/2A output rating and you'll be good.
I'm having the same issues. I click enable usb charging and then commit, but it keeps reverting back to disabled with no difference in charging capability.
Speaking of car charging, why does the battery temperature vary so much between AC & USB, versus Car charging?
With the supplied HTC AC charger or USB connected to a computer, the battery's charging voltage is 4.333 volts and the temperature is 81*F.
With a Sprint Car Charger, the charging voltage is 4.333 volts but the temperature is 95.5*F
Even chargers rated at 1A/2A may not have the appropriate pins soldered together to enable 1amp charging. Please see this thread I made when I had the Evo 4G:
http://forum.xda-developers.com/showthread.php?t=767961
GooseEye said:
I've never had a problem using this older but more powerful iGo AutoPower 3000 car charger. Overstock has them for $6.50+shipping and you get a bunch of power tips with it but not a microUSB tip.
http://www.overstock.com/Electronics/iGo-AutoPower-3000-Car-Charger-Power-Adapter/3668307/product.html
The power specs on the package I have say:
DC Input: 11.5-16 VDC
Power Output: Up to 15 Watts continuous
Radio Shack sells the iGo a97 tip for $10+taxes but Amazon has the tip for $6+shipping(free shipping if you have prime).
http://www.amazon.com/iGo-Kindle-Motorola-RAZR2-KRAZR2/dp/B0012J52OC/ref=sr_1_1?ie=UTF8&qid=1310316568&sr=8-1
From my understanding, the tips have a resister in them which limits the mAmp output but I'm not sure what the a97 tip specs are since iGo doesn't seem to release that info. Hopefully it's 1A like the wall charger. I can verify that the newer single output iGo chargers are limited to .75A. So even if the tip is 1A, the charger is the limiting factor, hence why I recommend the older, more powerful one.
Click to expand...
Click to collapse
i use this too. works great
Is it just me or any one else experienced extreme slow charging on their Droid razr?
USB charging from my PC.. It was almost 3 times faster to charge my previous lg optimus 7 and blackberry storm.
Sent from my Motorola Razr XT910 using XDA App
Yes....... AND....
Those other phone don't draw nearly as much power as a Razr.
So the typical PC does not put out 750mA on USB because the spec says they only need to put out 500mA. If you are using the phone while connected to USB it may never charge. It won't drain either.
tech_head said:
Yes....... AND....
Those other phone don't draw nearly as much power as a Razr.
So the typical PC does not put out 750mA on USB because the spec says they only need to put out 500mA. If you are using the phone while connected to USB it may never charge. It won't drain either.
Click to expand...
Click to collapse
Agreed. Wall charger is best.
Sent from my DROID RAZR using xda premium
I've not noticed anything out of the ordinary with USB charging vs. past phones I've owned, but have found it charges abnormally fast when connected to a wall charger.
Sent from my XT910 using xda premium
PC= trickle charge. its like trying to fill a bath tub with an iv drip
Lol.. Understood.. Off to the phone shop and get another wall charger then..
Sent from my Motorola Razr XT910 using XDA App
Or just get a USB-to-AC adaptor.
Sent from my XT910 using xda premium
Do you mean AC to USB adapter? That's exactly what I plasm to buy
Sent from my Motorola Razr XT910 using XDA App
vash_h said:
Do you mean AC to USB adapter? That's exactly what I plasm to buy
Sent from my Motorola Razr XT910 using XDA App
Click to expand...
Click to collapse
Get a battery monitor app, put it on the charge, see how much charge is actually flowing to the battery... with a 1750 mAHr battery, you can guess the charging time..
From my packard bell laptop with USB charging it gets 850 milliamp...so charging time is around 2 hours.... from a Wall charger it gets 1100 milliamp, so 1.5 hours is enough....
From my HP laptop it has the charging of 450-500 milliamp so it takes around 3 hours...
I have used the manufacturer of the laptop because each USB chipset has its maximum power rating... USB 2 had 500 milliamp at max and USB 3.0 has 900 milliamp of power rating...... so it depends which chipset you are using and which port you are connecting to.....
If getting more confused, try the standard AC charger.....
Also, I think you should make sure to put your phone on airplane mode (or at least turn 4g off) and turn the brightness down while you're charging. This way, more power goes to charging and less to battery draining stuff.
AND if you're willing to spend a little cash, (or you buy your phones at Costco like me) you can get one of the multimedia dock thingies from motorola. It literally charges in 3 hours on there.
Lol.. A wall charger will do fine for me. I've been scouting for the dock, to use webtop application.. But I can't find out over here on Malaysia.
I did find a great widget, battery info, which when discharging, it will display percentage of battery left, and remaining standby time.
However, the best part is, when charging, out will inform you time left to achieve 100% charge.. Its really cool..
Sent from my XT910 using XDA App
vash_h said:
Lol.. A wall charger will do fine for me. I've been scouting for the dock, to use webtop application.. But I can't find out over here on Malaysia.
I did find a great widget, battery info, which when discharging, it will display percentage of battery left, and remaining standby time.
However, the best part is, when charging, out will inform you time left to achieve 100% charge.. Its really cool..
Sent from my XT910 using XDA App
Click to expand...
Click to collapse
... i kinda gave up looking for one.... heck even trying to find the dock for the altrix is a pain... just need to modify the plugs and we can use webtop
Modify what plugs? care to share? I'm interested on this hack..
Sent from my Motorola Razr using XDA App
Math lesson!
The battery is 1750 mAh, that is milli ampere hours.
As such, it will supply 1750 mA, for one hour.
Charging is the same but backwards, 500mA is what the USB port on your PC supplies.
That gives 3,5 hours to supply the battery the required power, assuming 100% efficiency.
But lithium batteries need a trickle charge from 90% to 100%, so that last bit is usually performed in 1 hour, independent of what mAh the battery has.
So on our razr that last 175 mAh will always take one hour to charge.
So that means that we charge 1575mah at a fast speed, that leaves 3,15 hours to charge using USB, and 1 hour to top charge.
That'll give you 4 hours and 15 minutes through the computers USB. =)
vash_h said:
Modify what plugs? care to share? I'm interested on this hack..
Sent from my Motorola Razr using XDA App
Click to expand...
Click to collapse
some dude just opened the dock and extended the plugs. the altrix dock plugs are on the side. he just extended them to the top
Sent from my XT910 using xda premium
Im probably not as heavy a user as some....but Ive noticed the same thing. I unplug my phone at 7:30 and plug it back in at 9-10 at night usually with 20% left and when I stay up late Ive noticed it takes seemingly forever to charge.
I believe it recommended it either the online manual or the quick start up manual to use the charger that it came with. It stated that other brands or 3rd party may not charge the RAZR fast enough resulting with slower than usual charge times.
I have even heard of some people loosing power while it was plugged in and being used. I believe the 3rd party chargers were to blame Like others have said, the USB charging taking FOREVER, a car charger is a little better but not much.
If you download Battery Indicator Pro (from the market) you can set an option on how fast you want the battery to charge via AC outlet or USB.
Will also give you a 1% increment battery display
The Motorola razr can support upto a 1000ma charger..... technically, it means that if u pop it in the wall charger it will charge at 850ma per hour... it will have a full charge in 2 hours.... but a USB port on the PC or laptop is capable of providing only 500ma, so theoretically, it will take more than 4 hours for a full charge....
Sent from my XT910 using xda premium
I just bought razr after owning SGS1 for over 1.5yrs.
the usb charging is unnormally slow! even compared to SGS1 which has 1500mAh.
with SGS1 I used to use it for usb tethering and it charges in about 5 hours to full WHILE TETHERING!
But on Razr idle phone takes around an hour for every 5-10% of battery which is a lot!
I am wondering if there is any kernel fix or workaround that speeds up the usb charging, because this is not natural.
4 hours or even 6 hours is very reasonable charging time, but anything more than that is a lot.
I am thinking there is something wrong kernel wise.
edit: even comparing to HTC EVO 3D which has almost same battery capacity [1730 vs 1750] charges a lot faster than RAZR. and I do mean A LOT!
So I will get the regular charger for gs3 that comes with the phone (tomorrow when i get the phone). but i also have the HP Touchpad charger which gives output of 2.0A. I was wondering if I charge my phone with the HP charger will it actually charge is faster then the regular gs3 charger? the reason i ask is cause in other threads ppl have mentioned that it only charges faster with non - stock roms like aokp or aosp roms. please lemme know if this will work. thanks
It should I got one of those and it does charge faster I got the bb one tho
Sent from my SGH-T999 using Tapatalk 2
I've used my BlackBerry PlayBook charger on mine and it doesn't charge any faster. That charger is 1.8amp.
It will not charge faster. The phone only draws as much amps as its allowed to. Whether you use a 1 amp charger or a 2 amp charger, it'll only charge at the phones own rate
Sent from my SPH-L710 using xda app-developers app
then theres basically no advantage to using some other charger?
I don't believe so. The phone only draws what it needs.
Sent from my SPH-L710 using xda app-developers app
A lot of chargers will be rated less than the stock charger. Especially cheap car chargers. In that case the phone can only draw at the charger rating.
alirulzz said:
then theres basically no advantage to using some other charger?
Click to expand...
Click to collapse
Unless you run a custom kernel that allows for higher charge rates.
Sent from my ADR6400L using Tapatalk 2
I have a dual car/wall charger and I noticed when plugged in the car it charges faster.
Sent from my vivow using Tapatalk 2
The values listed on the charger is the max output it can provide. If the setting on the phone or the hardware is set up to only pull 1A, then it will always pull that unless that is more than what the charger can provide.
That being said, you should be able to take the battery out and charge it faster separate from the phone. I've always read, though, that charging a battery faster ( i.e. turning up the current) will/may reduce the life of the battery
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
the only way I have found to charge phone's faster is to power it off and then charge...takes about half the time to fully charge
none of the 2 amp chargers make it any quicker
alirulzz said:
So I will get the regular charger for gs3 that comes with the phone (tomorrow when i get the phone). but i also have the HP Touchpad charger which gives output of 2.0A. I was wondering if I charge my phone with the HP charger will it actually charge is faster then the regular gs3 charger? the reason i ask is cause in other threads ppl have mentioned that it only charges faster with non - stock roms like aokp or aosp roms. please lemme know if this will work. thanks
Click to expand...
Click to collapse
I have a Touchpad charger and it can be used, though I noticed that the phone got hotter than normal, IMO. The phone comes with a 1.0A combo wall charger with USB cable. Interestingly the Samsung stand and battery charger that comes with the spare battery comes with a .7A charger but the charging unit itself is 500mA/1A on the input with output at only 4.2v @ 450/900mA.
Is it my phone or does charging take forever seriously in thirty mins it only charges 3-5 %
Sent from my HTC One X+ using xda app-developers app
I have an HTC charger which came with my desire and it charges my one x+ at an acceptable rate. I also use a generic charger from eBay which is supposed to have a 2A output but charges at less than half rate. The one x+ sees the eBay one as a usb connection so not sure if its limiting the rate.
I would like to record the charge rate in an app then short the charger center pins (normally the data pins) then record again and see if this makes a difference. I haven't found an app that does this yet though.
Sent from my HTC One X+ using xda app-developers app
Are you charging it using the wall adapter? If you are charging it using just the USB cable in a computer or maybe a different adapter, then it is trickling in at a much slower rate.
Otherwise, I personally have not noticed any issues with the charging rate. Keep trying for a while longer. It might be that it will take a while to break the battery in (this is a complete shot in the dark).
yokozuna82 said:
Is it my phone or does charging take forever seriously in thirty mins it only charges 3-5 %
Sent from my HTC One X+ using xda app-developers app
Click to expand...
Click to collapse
Sounds like you have one or more rougue apps running and killing battery as its charging try better battery app and find it or them
Sent from my HTC One X+ using Tapatalk 2
ProfLayton said:
Are you charging it using the wall adapter? If you are charging it using just the USB cable in a computer or maybe a different adapter, then it is trickling in at a much slower rate.
Otherwise, I personally have not noticed any issues with the charging rate. Keep trying for a while longer. It might be that it will take a while to break the battery in (this is a complete shot in the dark).
Click to expand...
Click to collapse
I bought the phone off craigslist ,didnt come with a charger but for a good price I was paying I didn't really care ...I'm using a generic micro to usb cable with a Samsung wall plug ...I'm gonna hit eBay up and buy a HTC charger
Sent from my HTC One X+ using xda app-developers app
With wall charger mine is taking 2.5 to 3hrs depending on how low it was when put on charge.
Sent from my Nexus 7 using Tapatalk HD
digitalexplr said:
With wall charger mine is taking 2.5 to 3hrs depending on how low it was when put on charge.
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
5%
Sent from my HTC One X+ using xda app-developers app
ProfLayton said:
Are you charging it using the wall adapter? If you are charging it using just the USB cable in a computer or maybe a different adapter, then it is trickling in at a much slower rate.
Otherwise, I personally have not noticed any issues with the charging rate. Keep trying for a while longer. It might be that it will take a while to break the battery in (this is a complete shot in the dark).
Click to expand...
Click to collapse
Agreed, the wall charger is much faster than USB to a computer/monitor.
An app that I use occasionally to monitor battery/phone charge/discharge rates that I've found top be very detailed and helpful:
https://play.google.com/store/apps/details?id=ccc71.bmw
Give it a look; it may give the type of info you're looking for.
Using the above app (previously) I noticed the same thing as the OP. Non-HTC wall chargers (even of they are rated at something like a 2 A output) charge the phone at only about 250-300 MA whereas an HTC charger (even an old one that came with an OG EVO 4G) will charge the phone at 800-1000 mA which results in a full charge from ~5%-100% in about 3 hours.
I haven't gotten around to looking into the specific differences between an HTC and generic chargers but would guess its a somewhat specific resistance applied across the data pins.
Hi
I used the htc charger that comes with my phone.
I have ARDH rom with stock kernel, and i have the "battery monitor widget pro" that has an option in its setting called "usb fast charge":
- When this option checked, i measured my charging rate from ~1% to 100% in 1h30 to 2h00 max (i noticed ~1100mA during charging).
- when this option unchecked, i have rate of 2h45 to 3h30 max (~850mA during charging max).
- with pc charging or any unofficial charger (with any mA/h types, even the 2A/h i.e the iPhone charger), i have charging rate of ~4h00-5h00 (max 300 to 400mA).
This is as i think the standard charging protocols of the stock kernel.
I learned this from back to my previous htc sensation that i have used the famous faux123 kernel that implemented these protocols after version 6 or 7 as i remembered.
Thanks
Sent from my HTC One X+ using xda premium
Just wondering what amperage people are getting. I get a max of 1.2a even though I have tried other chargers that put out more. Not sure if it's something with my phone or maybe the various chargers I've tried.....
Sent from my SCH-I545 using XDA Premium HD app
todd3835 said:
Just wondering what amperage people are getting. I get a max of 1.2a even though I have tried other chargers that put out more. Not sure if it's something with my phone or maybe the various chargers I've tried.....
Sent from my SCH-I545 using XDA Premium HD app
Click to expand...
Click to collapse
U using stock Samsung charger and cable?
Sent from my SCH-I545 using Tapatalk
todd3835 said:
Just wondering what amperage people are getting. I get a max of 1.2a even though I have tried other chargers that put out more. Not sure if it's something with my phone or maybe the various chargers I've tried.....
Sent from my SCH-I545 using XDA Premium HD app
Click to expand...
Click to collapse
I've found the stock charger that came with my phone doesn't charge very fast anymore. It will sit around 1.2a but with a new charger with a rating output of 2a I've been getting a charging rate of about 1.9
Sent from my SCH-I545 using XDA Free mobile app
Not gonna lie I have been using the iPad charger with a stock cable and that will get it done quick. Try to back up an oem iPad block off amazon or what not and you will notice a difference.
todd3835 said:
Just wondering what amperage people are getting. I get a max of 1.2a even though I have tried other chargers that put out more. Not sure if it's something with my phone or maybe the various chargers I've tried.....
Sent from my SCH-I545 using XDA Premium HD app
Click to expand...
Click to collapse
Unless you are running a custom kernel with fast charge I think the phone will not charge at 1.9a unless the screen is off.
Sent from my 4.4.3 GPE'd vzw S4
znel52 said:
Unless you are running a custom kernel with fast charge I think the phone will not charge at 1.9a unless the screen is off.
Sent from my 4.4.3 GPE'd vzw S4
Click to expand...
Click to collapse
How do tell what amps it charges at? All I can find is what the voltage, using 3rd party apps from the play store of course. My phone charges incredibly slow. Especially if I'm using it during the charge cycle. Hours can go by and it just sits there at 5%.
Sent from my SCH-I545 using XDA Free mobile app
zombolt said:
How do tell what amps it charges at? All I can find is what the voltage, using 3rd party apps from the play store of course. My phone charges incredibly slow. Especially if I'm using it during the charge cycle. Hours can go by and it just sits there at 5%.
Sent from my SCH-I545 using XDA Free mobile app
Click to expand...
Click to collapse
This is what I use: https://play.google.com/store/apps/details?id=com.abmantis.galaxychargingcurrent.free
Sent from my SCH-I545 using XDA Free mobile app
If you use KT kernel, it shows you in KTweaker the charging current.
Sent from my SCH-I545 using Tapatalk
znel52 said:
Unless you are running a custom kernel with fast charge I think the phone will not charge at 1.9a unless the screen is off.
Sent from my 4.4.3 GPE'd vzw S4
Click to expand...
Click to collapse
I'm running ktoons kernel without fast charge, and I'm getting 1.9
Sent from my SCH-I545 using XDA Free mobile app
I'm on safe strap so running a custom Kernal isn't possible. I'm guessing I'm seeing the 1.9a when it's initially waking up from the screen off. I've tried the stock cable, as well as the Amazon one that is 1.9a.
Sent from my SCH-I545 using XDA Premium HD app
znel52 said:
Unless you are running a custom kernel with fast charge I think the phone will not charge at 1.9a unless the screen is off.
Sent from my 4.4.3 GPE'd vzw S4
Click to expand...
Click to collapse
The Fast Charge mode on the KT kernel has no impact on AC charge rate, it only affects USB charge rate:
Normally, when you connect to a PC, you get about a 500ma charge rate and the ability to pass data along. When 'Fast Charge' is set, you lose the ability to transfer data, but the 500ma restriction goes away. In practical terms, it means that you should see between 700ma and 900ma as a result.
w/respect to the OP, my experience is weird. When the device was new, I got around 1800ma on stock charger and cable; now, same setup gets me 900-1200 if lucky (even with new battery). When I tried the stock charger with a different (newer) cable, I get around 1600. It's strange that a cable's ability to carry a charge would degrade so quickly (if that's in fact what's happening).
I have no proof, but absolutely believe that kernel can influence max charge rate, because in the past, I've observed max charge rate drop with the release of a new kernel version, then go up again with another release.
Samsung did slow the charging rate in one of the OTAs. People had been complaining about the phones getting too hot.
Sent from my SCH-I545 using Tapatalk
its weird for me, when i use my qi samsung galaxy charging pad(wireless charging) i get 1.9a, but when i plug the cord in to charge(wired), i get 460mA. wtf??
methodsofbeyond said:
its weird for me, when i use my qi samsung galaxy charging pad(wireless charging) i get 1.9a, but when i plug the cord in to charge(wired), i get 460mA. wtf??
Click to expand...
Click to collapse
What are you using to measure that? Qi isn't capable of charging at 1.9a
The galaxy charging current app..
So you've noticed that sometimes your phone seems to take forever to charge, and other times it seems to charge fine? Let me share some ideas that I've learned through lots of research on this exact subject last year...
I have used the galaxy charging app myself. In my opinion, CurrentWidget is better...looks cooler too. Ha.
So other than software related issues, you need to remember that the speed in which your phone charges is highly dependent on the hardware of 3 things:
1) Power Outlet (including power strips, extension cords, USB extenders, etc.)
2) Power Adapter (I highly recommend Anker's products!!!)
3) MicroUSB Charger Cable (if not using the factory Samsung cable or an Anker one, be sure that it's an 11-pin microUSB, and NOT a 5-pin...they look the same!)
Power Outlets - I know for me, if I use the outlet in my livingroom, it takes SO much longer for my phone to charge than it does in my bedroom. Just try this test! Grab that CurrentWidget app from above and try out some different outlets throughout your house, just to see whether or not the voltage varies. I bet you'll see that this is true!
Power Adapter - You should be using either the factory Samsung charger or a reputable 3rd party charger with the equivalent specifications (5V & 2.1A). However, I actually prefer my Anker charger over my Samsung one! If you're finding that you can't get a good charge, try swapping out your adapter with another one.
MicroUSB Charger Cable - As stated with the power adapter, you should also try to stick with your factory cable if possible. HOWEVER, I have found that to daily connecting and disconnecting of the cable with your phone, they probably receive the most wear and tear of anything else, and therefore may need replacement after some time. Again here, I find that using either my Anker cable or Samsung cable will give me the best charge. This is determined by both the CurrentWidget app and the amount of time it actually takes to get a full charge! Keep in mind that using USB extender cables can drastically lower the voltage to your phone - thus causing a very slow charge.
So basically, I know if I need to charge my phone as quickly as possible, I know I should clear my RAM and recent apps, put my phone on airplain mode, and using my Anker charger, I plug-in at the outlet near my closet door! I figured this all out by using these same ideas I just shared with you! Hope this is helpful!
If you can tell the difference between outlets, you need to call an electrician. Not kidding.
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brizey said:
If you can tell the difference between outlets, you need to call an electrician. Not kidding.
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I doubt that's entirely true. I mean, think of if they're on different circuits, that kind of thing can vary...also, depending on what you have plugged into your outlets can cause lower outputs I'd assume. I'd bet if you used the app I referred to and ran a test at each of your outlets, and reported back here (being honest of course), that you'd see some differences. Anyways, that was far from the point of the post. But thanks for the insight!
calebcabob said:
I doubt that's entirely true. I mean, think of if they're on different circuits, that kind of thing can vary...also, depending on what you have plugged into your outlets can cause lower outputs I'd assume. I'd bet if you used the app I referred to and ran a test at each of your outlets, and reported back here (being honest of course), that you'd see some differences. Anyways, that was far from the point of the post. But thanks for the insight!
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The Samsung power supply is rated for 100 to 240 V @ 0.5 A input. It may be that the power supply is kind of crappy, and varies its output under small variations in input voltage, which is why you see what you see. It really shouldn't...but it wouldn't shock me if it did given that its made for $2 in China. Makes you wonder what would happen if you plugged it into a 240V source. When my wife went to Malaysia last summer to visit her folks, I just put a US to British transformer-less adapter on her Motorola brick and it worked OK plugged into 240V. Maybe the Samsung ones are crappier?
I squared R losses should be reasonably low in household wiring. NEC is 5% drop max at the outlet. And that is like the outlet the farthest from your mains under full rated load. Assuming you live somewhere typical, your voltage at the panel will be 120V+; a lot of time its a few volts over 120. If you have an outlet that is not tripping a breaker go below 100V, you have a problem somewhere. A 20% drop is not normal. Have you put a meter on the outlets with low charge rates?
My friend's OEM s4 charger charges at 1900 ma while my OEM charger only charges at max 1200... Weird how that happens but somehow the cable just stops charging as fast.
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