Develop Bugs

Battery charger that will "keep up"?

Hello guys
I have a cheap USB charger I got on eBay.
I use my phone as a dash board cam (with the screen on) and the battery decharges faster than the charger can charge it.
Will it be possible for me to find a charger that will "keep up"
Thanks a lot in advance!

it could be either the usb cable if it's not stock or damaged but it very well may be the charger, look for a little bit higher end charger (as in not the cheapest one you can find) and it should work

The specs in the item description says 500-700 mA output at 5VDC. Not only is that low output current, but most list a minimum spec, not a range. You can probably assume 500 mA output for that one, which is not enough. The battery will discharge at a higher rate than that charger can provide.
Anyway, look for one that is rated for 1 Amp (or 1000 mA) output at 5 volts. This should be sufficient. I still use my HTC 1A charger that came with my Nexus One car dock for that reason.
Sent from my Galaxy Nexus using Tapatalk 2

Samsung phones seem to have 2 charging profiles, usb gives you around 450mah and ac gives you around 650mah.
650mah still isn't enough when doing nav/bluetooth streaming, until samsung starts using a full amp for charging you will never have a charger that will keep up.

motorola fast charger
you can use this one:
Search for "Motorola Vehicle Power Adapter micro-USB Rapid Rate Charger" on Amazon
I have been using this for quite a while now on Nexus 7, its just awesome. It has an output of 950+mah which would be enough for Nexus 7.

peachpuff said:
Samsung phones seem to have 2 charging profiles, usb gives you around 450mah and ac gives you around 650mah.
650mah still isn't enough when doing nav/bluetooth streaming, until samsung starts using a full amp for charging you will never have a charger that will keep up.
Click to expand...
Click to collapse
I used this Griffin-Powerjolt. Found it at walmart, and took it apart and soldered the two middle pins. But found my info here on XDA, but cant seam to find the thread. And I can play games, stream music, etc, and my charger keeps up and charges fine. But this post sums up your question.
Also I'm on AOKP JB and when I was on there ICS roms they have the charging mod so even when I had a cheap-o 500mah charger it saw it as an AC charger and charged at AC charge speed. I think also Cyanogenmod has implemented this also, but im not sure.

+1 for the Motorola charger recommended earlier. It puts out 950ma so the phone will read charging via 'AC' rather than 'USB'. Charges quick and will be able to keep up with BT and GPS navigation. Here is a direct link:
http://www.amazon.com/Motorola-Vehi...Charger/dp/tech-data/B000S5Q9CA/ref=de_a_smtd
I've been using it with all of my Android devices and works very well. Great quality as well. Highly recommend!

I use the 2A Amazon branded charger. You'll want to set it in fast charge, because the phone thinks it is a usb charger. You can open it and short the pins, if you want.
Sent from my Galaxy Nexus using xda premium

Actual current draw (aka...how fast your phone charges) is not determined by the charger but rather by the phone itself. The ratings on the chargers is what they are capable of, but will be dependent on the device. People would be frying devices all the time by using one device with anothers charging cable that has a totally different output if it was determined by the charger alone.

gbarayah said:
+1 for the Motorola charger recommended earlier. It puts out 950ma so the phone will read charging via 'AC' rather than 'USB'. Charges quick and will be able to keep up with BT and GPS navigation. Here is a direct link:
I've been using it with all of my Android devices and works very well. Great quality as well. Highly recommend!
Click to expand...
Click to collapse
x3 on this charger. Have used it for the last couple of Android phones as well. Work fantastically with my Nexus streaming music via bluetooth to my car stereo. Never has a problem keeping up.

I'm using my N1 charger still too. Keeps up with nav, stream music, and max brightness. I don't use BT, but otherwise I always gain quite a bit of charge.
299792458 said:
The specs in the item description says 500-700 mA output at 5VDC. Not only is that low output current, but most list a minimum spec, not a range. You can probably assume 500 mA output for that one, which is not enough. The battery will discharge at a higher rate than that charger can provide.
Anyway, look for one that is rated for 1 Amp (or 1000 mA) output at 5 volts. This should be sufficient. I still use my HTC 1A charger that came with my Nexus One car dock for that reason.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse

frigidazzi said:
I'm using my N1 charger still too. Keeps up with nav, stream music, and max brightness. I don't use BT, but otherwise I always gain quite a bit of charge.
Click to expand...
Click to collapse
oh in another way, you could install a custom kernel and enable fast charging, works for me though.

I bought 2 of these charging only cables. They work perfect, full "AC" charge through any car charger port.
http://www.amazon.com/gp/product/B007F1DV76/ref=oh_details_o02_s00_i00
Put one in my car and my GFs car.
The problem is a "USB" charger spec doesn't allow for the higher voltage charging under most situations. Any cable that does provide the full "AC" charge is a 'non-USB compliant' charger (or something like that), thus, the cable I listed above doesn't say "USB" charger. That is a very brief explanation.

mrtesting said:
oh in another way, you could install a custom kernel and enable fast charging, works for me though.
Click to expand...
Click to collapse
That works fine but I heard it uses your battery faster.

Solar charger

Any recommendations for sloar portable charger for NOTE-2 ?
I bought already one and instead of charging it is draining down the battery! Probably because it uncomon 11pins USB. This happens when I connect to solar panel. When I connect to battery power bank everything works fine, but my main puprose was to use the solar panels.
Arthur

What is the power output of the solar panel your using?

I think its 0.5 W
Sent from my SGH-T889 using xda app-developers app

Someone chime in here if im wrong. But based on output power of .5 watts, and voltage being 5 volts. I see that as having a current output of 100mAh.
Home computers have a usb output of 500mAh and the standard home charger that comes with it is 1000mAh or 1Ah charger.
Based on that, unless my math is wrong, which it could be as i suck at match, LOL, your not putting enough power into your phone. This is why its draining.
5 watts would give you 1000mAh output, which is whats recomended for the unit. I would say anything less then 3 or 3.5 watts would be breaking even.

IAmSixNine said:
Someone chime in here if im wrong. But based on output power of .5 watts, and voltage being 5 volts. I see that as having a current output of 100mAh.
Home computers have a usb output of 500mAh and the standard home charger that comes with it is 1000mAh or 1Ah charger.
Based on that, unless my math is wrong, which it could be as i suck at match, LOL, your not putting enough power into your phone. This is why its draining.
5 watts would give you 1000mAh output, which is whats recomended for the unit. I would say anything less then 3 or 3.5 watts would be breaking even.
Click to expand...
Click to collapse
correct. Minimum you'll need to charge is 5W or 1 amp. 500 mA will just slow discharge. The charger that came with the phone is 2 A or 10W, this is why it charges faster. He'll probally need to charge the battery pack on the solar charger, then use the battery pack to charge your phone.
Sent from my SGH-T889 using Tapatalk 2

Thanks for pointing that out _Dennis_ I have been using a 1 amp charger for mine, charging at night while im asleep. I was not aware that it came with a stock 2 amp charger. Ive got other 1 amp chargers set up from previous phones so i never used the stock one.
So my math above is off by 50% since i was basing it off 1 amp charging, and the stock is 2 amp.

Ok, so if I go towards phone/notebook solar charger, what would be recommended ? My Samsunf tablet comes with 19v 2A adapter so itlooks like if I have charger to supply this same amount of power it should work for Slate and Note2 as well. Right ?
Sent from my SGH-T889 using xda app-developers app

Is 19V the output? If so then NO. The Note 2 requires 5V 2A..

Wall Adapter [Q]

Could you guys recommend me a wall adapter?
I heard that i should get a 1500 mA one, but the best i found on amazon is Belkin Universal USB Wall Charger EU which is a 1000 mA ( i'm not allowed to post links yet, but if you search it it's impossible not to find it). I have to tell you that i can only buy it from the UK and that it needs to be a standard EU plug.

The one amazon.de sent me charges fine, the only issue is that it turns on my device if i try to charge it when it's off. The charger is a 5v 1A.
My iPhone 5S wall charger is also a 5v 1A but it "behaves better" i guess, because when my moto G is off wheni plug it to the iPhone 5S wall charger it doesn't turn on my phone automaticaly, it charges fine and the moto g only shows the battery image on screen.
Both charge ok (1A 5v), but if i want to charge my phone when it's off i guess some chargers won't be able to do that. Maybe it's an voltage accuracy.
Sent from my iPhone using Tapatalk

I use adapter from my Nexus 7, otput is 5V 2A and no problems.

Any wallcharger will do as long it is 500-1500mA but i think anything over 1500mA can be used, but the device will limit it to 1500mA.
But i wouldn't recommend anything over 1500mA as it could damage the device.
The higher the mA is the faster it will charge.
Currently im using the Sony Ericsson Live Dock DK10 to charge my Moto G but im looking for a more powerful charger.
Press Thanks if i have Helped!

MahaDEVELOPER said:
Any wallcharger will do as long it is 500-1500mA but i think anything over 1500mA can be used, but the device will limit it to 1500mA.
But i wouldn't recommend anything over 1500mA as it could damage the device.
The higher the mA is the faster it will charge.
Currently im using the Sony Ericsson Live Dock DK10 to charge my Moto G but im looking for a more powerful charger.
Press Thanks if i have Helped!
Click to expand...
Click to collapse
Additional amperage does not harm the device, only incorrect voltage will. The phone will only draw as much amperage as the charging chip allows.
Having said that, keep in mind that quick charging will wear out the battery faster than a slower charge.

I'm using a 750mA, 5V Blackberry charger for mine - from empty it takes about 2hrs 45mins to fully charge, so a higher amperage should be pretty fast. Doesn't boot the phone if the phone is off.

i bought this one
http://www.amazon.com/gp/product/B007ZN5LE0/ref=oh_details_o00_s01_i00?ie=UTF8&psc=1
didn't receive it yet

In case anyone is wondering whether the old Apple wall charger is working or not (the one from circa 2007. I broke my other decent wall adapter...), it's working almost perfectly. It's correctly recognized as wall charger and ~1A is drawn from. That's quite surprising, It had always been wrongly detected by all the phones I tried to charge with it. The only drawback is that the device can't be charged when off, the device will simply boot as soon as it's plugged. This doesn't happen with proper wall chargers (at least on JB, I don't know if something changed with KK).
To know if a wall charger is detected as such, dial *#*#4636#*#* and see if it says "USB" instead of "CA" in the battery informations. Usually USB means lower current (~500mA) and kernel wakelocks (not always this one, it depends on how the charger is detected). That's not good.
You can also get the amount of current flowing though the battery using CurrentWidget (look for it on the Play Store) or reading the files in /sys/class/power_supply/battery/.

nothing happens if the moto g connect a charger that 2.0a galaxy s4

The Asian dual sim version comes with a charger with a hard wired cable, rather than a micro USB cable (and interestingly, its only got 2 wires connected from what I can tell). Its 500mA, and mine uses a UK plug. I've also tried it with a HTC charger (the moto charger has a VERY long, unwieldy cable) thats also 500mA and it works too. There's no real need for a higher amperage, and it does tend to charge pretty fast.

MahaDEVELOPER said:
Any wallcharger will do as long it is 500-1500mA but i think anything over 1500mA can be used, but the device will limit it to 1500mA.
But i wouldn't recommend anything over 1500mA as it could damage the device.
The higher the mA is the faster it will charge.
Currently im using the Sony Ericsson Live Dock DK10 to charge my Moto G but im looking for a more powerful charger.
Press Thanks if i have Helped!
Click to expand...
Click to collapse
Hi, is it possible to use the Live Dock to connect USB devices on the Moto G?
Thanks in advance!

I am using the adapter of iphone 5s, it's a 1A, is it good or not?

stiiiv19 said:
I am using the adapter of iphone 5s, it's a 1A, is it good or not?
Click to expand...
Click to collapse
Why nobody ever read dedicated FAQs?

the alanct
matmutant said:
Why nobody ever read dedicated FAQs?
Click to expand...
Click to collapse
thx mate

chocris said:
nothing happens if the moto g connect a charger that 2.0a galaxy s4
Click to expand...
Click to collapse
Nope I'm using it. Fast charging. Awesome...
Sent from my XT1033 using Tapatalk

No USB Charging

My 6 day old Verizon Note 4 stopped USB charging last night.
Went to bed plugged it in. Woke up this morning only at 50%. USB not working. Plug into supplied charger via wall socket, charges fine. Plug into computer charges just fine. Does not charge via USB in my car. Still need to check my cig lighter charger. Any insight? Should I go to Verizon and swap it out?
Thanks,
Bill

Redapple63 said:
My 6 day old Verizon Note 4 stopped USB charging last night.
Went to bed plugged it in. Woke up this morning only at 50%. USB not working. Plug into supplied charger via wall socket, charges fine. Plug into computer charges just fine. Does not charge via USB in my car. Still need to check my cig lighter charger. Any insight? Should I go to Verizon and swap it out?
Thanks,
Bill
Click to expand...
Click to collapse
I would think that is the best way. Your computer and your car charger should be the same and your pc is working but not the car charger. I would get the 2 amp car charger at the least, not the 1 amp one. Also remember that if you charge with PC or car, you can't use your phone while charging or it would rather drain your battery instead of charging due to too low amperage.

All the same stuff still works on my note 2. My note 4 just stopped usb charging...is it the phone?

Redapple63 said:
All the same stuff still works on my note 2. My note 4 just stopped usb charging...is it the phone?
Click to expand...
Click to collapse
Is your car charger is the old car charger with 1 amp? try to power off your phone then plug in and see if that works.

Yes it is the old charger. Need to get it out of my wife's car. Will check in the am.

Redapple63 said:
Yes it is the old charger. Need to get it out of my wife's car. Will check in the am.
Click to expand...
Click to collapse
Ok, also turn of fast charge in settings--> battery and see if that works with phone is on while charging.

No go...

Redapple63 said:
No go...
Click to expand...
Click to collapse
Did you get the red X in the battery icon? To verify if it's slow charge, you need to go into settings->battery and it should indicate that if it slow charge, if it said no charge then you need to get a new one and make sure get the 2 amp one for none Samsung charger or get the original Samsung made.

My car charger is a 2.4 amp dual charger. It still works with my Note 3, but has never worked with my Note 4. I tried plugging the phone into my radio which pumps out 600 MAH, and that does work. I tried turning off fast charge and my 2.4 charger refuses to work.

First I just want to say I'm no expert, but I have been around the block regarding car chargers and chargers in general.
1. The amperage is important, however there is also voltage that needs to be considered.
2. I've seen chargers that say on the device that it is 5v and 2a, but when you actually take a multimeter to it, it's not outputting the proper volts or amps.
The note 4 has 2 charging modes.
Regular - 5v and 2a
Fast - 9v and 1.67a
You will want the charger you're using to match one of these volt and amp combinations to properly charge your phone.
I have had no problems using all my note 2 chargers (5v and 2a) for my note 4.
I hope this helps.
-Wizzle

USB-C chargers with QC3 work fine with the Pixel2XL?

Hi,
I have 2 chargers that I used with my older phone, both are QC3 compatible, USB-C port and 1 of them can deliver 5/9/12 volts.
no matter if I use 1 of them or the charger that came with the pixel2xl I see (in Ampere app) it always charging at around 5V and 1A.
does it mean that any of them is good? is it possible to charge it even faster?
the charging speed is pretty much ok I think.

QC3 will not do anything but charge at standard speeds. This device is power delivery. QC4 will be compatible with power delivery, but good luck finding a QC4 charger.
Sent from my Pixel 2 XL using XDA-Developers Legacy app

Don_Perrignon said:
QC3 will not do anything but charge at standard speeds. This device is power delivery. QC4 will be compatible with power delivery, but good luck finding a QC4 charger.
Sent from my Pixel 2 XL using XDA-Developers Legacy app
Click to expand...
Click to collapse
You mean Google sends an old style charger with the phone? Instead of the kind that the phone is designed for?

wtherrell said:
You mean Google sends an old style charger with the phone? Instead of the kind that the phone is designed for?
Click to expand...
Click to collapse
No. It comes with a Power Delivery charger, the phone is a Power Delivery device.
QC3 and below will charge at a standard (slower) speed. QC4 is compatible with QC and Power Delivery - but, at this time there is no QC4 chargers, oddly.
Sent from my Pixel 2 XL using XDA-Developers Legacy app

wtherrell said:
You mean Google sends an old style charger with the phone? Instead of the kind that the phone is designed for?
Click to expand...
Click to collapse
google use PD standard instead of QC
so if you want fast charging
get your self a PD charger
---------- Post added at 01:38 AM ---------- Previous post was at 01:37 AM ----------
dimiboy said:
Hi,
I have 2 chargers that I used with my older phone, both are QC3 compatible, USB-C port and 1 of them can deliver 5/9/12 volts.
no matter if I use 1 of them or the charger that came with the pixel2xl I see (in Ampere app) it always charging at around 5V and 1A.
does it mean that any of them is good? is it possible to charge it even faster?
the charging speed is pretty much ok I think.
Click to expand...
Click to collapse
pd charger if you want fast charging

The OP said that using the charger that came with the Pixel 2xl still charged no faster than the older ones (5v 1A) or did I misread the post?

wtherrell said:
The OP said that using the charger that came with the Pixel 2xl still charged no faster than the older ones (5v 1A) or did I misread the post?
Click to expand...
Click to collapse
He said many other things, too.
I think constantly charging with the screen off helps with the charging speed. It shouldn't, but reading other threads has me thinking this. I also, think his phone is faulty.
He also said he thinks the speed is ok.
Sent from my Pixel 2 XL using XDA-Developers Legacy app

For the heck of it, I tried the OEM charger with the Ampere app, and it was showing basically 5v at 1 amp. Tried the usb A port on my power strip that does 5v at 2.4 amps, and it read the same 5V at 1 amp. The 1 amp port on the power strip gave a reading closer to 4v at 1 amp.
Not sure what the data source is for the app because the OEM charger definitely charges quickly. I have no doubt the OEM is doing 9 volts at 2 amps. Or something definitely higher than 5v at 2.4 amps. I am assuming it is a net figure being measured somewhere not in the line from the port, since it'll also show the discharge when unplugged. So this is not the power coming into the phone.

So as far as I checked, everything is charging well.
The problem is that if you will install few other Ampere measuring programs, some will reveal that they don't have access to the sensor of the phone so the data isn't accurate.
so, we can hope it's ok. sadly I can't find anywhere a physical USB-C Ampere meter to buy for now.

Voicebox said:
For the heck of it, I tried the OEM charger with the Ampere app, and it was showing basically 5v at 1 amp. Tried the usb A port on my power strip that does 5v at 2.4 amps, and it read the same 5V at 1 amp. The 1 amp port on the power strip gave a reading closer to 4v at 1 amp.
Not sure what the data source is for the app because the OEM charger definitely charges quickly. I have no doubt the OEM is doing 9 volts at 2 amps. Or something definitely higher than 5v at 2.4 amps. I am assuming it is a net figure being measured somewhere not in the line from the port, since it'll also show the discharge when unplugged. So this is not the power coming into the phone.
Click to expand...
Click to collapse
Nathan k over on Google+ has done some tests with the new pixel 2xl. You can see his results there, and yes, the charge rate absolutely slows down with screen on.

CBMC said:
Nathan k over on Google+ has done some tests with the new pixel 2xl. You can see his results there, and yes, the charge rate absolutely slows down with screen on.
Click to expand...
Click to collapse
Yeah, I would assume slower rate with screen on, but would it reduce from 9 volts at 2 amps from the OEM charger, to showing only 5 volts at 1 amp? Mine does seem to slow noticeably, but that'd be a big change. Unless it specifically drops the incoming power down when the screen goes on.
I think someone needs to throw down the $25 to get an in line USB C meter to just measure. I almost did yesterday, but got too busy to read the reviews of the ones available.

Voicebox said:
Yeah, I would assume slower rate with screen on, but would it reduce from 9 volts at 2 amps from the OEM charger, to showing only 5 volts at 1 amp? Mine does seem to slow noticeably, but that'd be a big change. Unless it specifically drops the incoming power down when the screen goes on.
I think someone needs to throw down the $25 to get an in line USB C meter to just measure. I almost did yesterday, but got too busy to read the reviews of the ones available.
Click to expand...
Click to collapse
Check out Nathan k. On Google+. He measured wattage from empty to full with screen on. He also did some tests at load.

CBMC said:
Check out Nathan k. On Google+. He measured wattage from empty to full with screen on. He also did some tests at load.
Click to expand...
Click to collapse
Yeah, thanks. I'm not on Google + and I tried searching earlier and some usb C groups popped up, and they had so much unrelated stuff I just stopped looking.

does anyone know if using QC3 or say an older Nexus 6p charger really hurts the Pixel 2 XL? I keep hearing X and Y chargers shouldnt be used on the Pixel 2 XL..but does it really matter? is the only downside slower charging? or can you really hurt the battery?

phyl0x said:
does anyone know if using QC3 or say an older Nexus 6p charger really hurts the Pixel 2 XL? I keep hearing X and Y chargers shouldnt be used on the Pixel 2 XL..but does it really matter? is the only downside slower charging? or can you really hurt the battery?
Click to expand...
Click to collapse
I have used many different types of chargers with no issue.
Nexus 6
Samsung Note 5
Chromecast
Asus that was used for my old dock stations
Generic USB plug in my desk powerbar (likely 5V 1a standard)
QC3 car charger
PD car charger
Sent from my Pixel 2 XL using Tapatalk