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i bought that Motorola Rapid Car charger recent and have been using it about a week now. i've noticed that it doesn't seem to charge my Thunderbolt any faster then it did when i was using the Thunderbolt's USB cable with this USB car charger adapter.
so, my question is, why is it called "rapid" if it doesn't charge any faster?
and i suppose secondly, is there an actual microUSB charger that will charge the Thunderbolt faster?
they make one for the iphone that will fully charge it in 30 minutes so i know they are out there.
voxigenboy said:
i bought that Motorola Rapid Car charger recent and have been using it about a week now. i've noticed that it doesn't seem to charge my Thunderbolt any faster then it did when i was using the Thunderbolt's USB cable with this USB car charger adapter.
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Maybe you should try this one.
Install the battery monitor widget. Monitor the battery for about 20 minutes while charging. Tell us what the charge current is.
Does the Motorola charger include a cable? If not, you may just have a weak cable. I have seen cheap cables with wire so thin that the charging current is no better then charging off a weak USB port.
My experience has been that the phone typically recognizes car charges as USB charging and uses a different charging profile. My solution to that is use a wall charger through an inverter or a kernel that doesn't use radically different charging profiles for A/C and USB.
loonatik78 said:
My experience has been that the phone typically recognizes car charges as USB charging and uses a different charging profile. My solution to that is use a wall charger through an inverter or a kernel that doesn't use radically different charging profiles for A/C and USB.
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No need for that.
Cut a small piece of aluminum foil. Carefully place it where it shorts the two center conductors in the charger. Plug the USB cable into the charger. Make sure the foil stays in place over the two center conductors.
It is now a high rate charger. (assuming it can put out 1 amp.)
The limiting factor is typically the usb cable itself. Most usb cables can't support the 1amp that is provided to it. Since you used the original usb cable that came with the thunderbolt (that's been "shorted" as mentioned above" ) it will be just as fast as the moto car charger. the 1amp charging rate that the moto charger charges at (i have one) and that the original one charges at are already "rapid". if you plugged a normal usb cable from somewhere else into the other usb car charger, it'd be much much slower
squeakyl said:
The limiting factor is typically the usb cable itself. Most usb cables can't support the 1amp that is provided to it. Since you used the original usb cable that came with the thunderbolt (that's been "shorted" as mentioned above" ) it will be just as fast as the moto car charger. the 1amp charging rate that the moto charger charges at (i have one) and that the original one charges at are already "rapid". if you plugged a normal usb cable from somewhere else into the other usb car charger, it'd be much much slower
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The stock charger is what shorts the connections. The cable is NOT shorted on the two inner pins because they are the data connections used for connecting your phone to a computer.
doodlebro said:
The stock charger is what shorts the connections. The cable is NOT shorted on the two inner pins because they are the data connections used for connecting your phone to a computer.
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To meet the USB charging spec (which the TB uses), the two inner (data) contacts should be shorted with no more that 200 ohms.
But, the cable can also be an issue for rapid charging. The voltage drop for a 1A/5V source, across only .5 M of 28 gauge copper is ~220 mV. If you use a longer cable, there's more voltage drop. The TB likely current limits itself when the voltage drops below a certain threshold. Best to buy 24 gauge USB cables, if you can, especially if getting longer ones (monoprice has them).
voxigenboy said:
i bought that Motorola Rapid Car charger recent and have been using it about a week now. i've noticed that it doesn't seem to charge my Thunderbolt any faster then it did when i was using the Thunderbolt's USB cable with this USB car charger adapter.
so, my question is, why is it called "rapid" if it doesn't charge any faster?
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I think its a matter of rated output current. BUT on the other side, the phone must be capable of drawing/using that much current. If the adapter is rated for more current than the phone can charge, the "extra" current wont be supplied.
Initially, Moto's standard car chargers output 5V and up to 550ma max (just like a standard PC USB port) so they didn't charge phones all that fast. Moto then came out with chargers that had higher current output, so they were capable of charging the phones "faster" than the original car chargers (but on par with the home/travel/AC chargers) and called them "rapid car chargers"..
Today, the current output on the Moto SPN5400A car charger is 0-950mA, and I've seen it sometimes referred to as "Rapid Car charger."
But as far as I know, Moto no longer makes/sells the lower current car chargers, and their web site only shows one MicroUSB and one MiniUSB car charger for sale, both of which appear to be of the 0-950mA output variety.
voxigenboy said:
and i suppose secondly, is there an actual microUSB charger that will charge the Thunderbolt faster?
they make one for the iphone that will fully charge it in 30 minutes so i know they are out there.
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Just because someone makes such a charger for the iPhone, doesn't mean one must exist for the TB, or other phones, does it? I know the iPad uses a 2A charger. What happens if you connect an iPhone to that? will it charge faster? I guess that depends on if the iPhone is capable of drawing more than 1A to charge it.
I've not seen a "home" or AC charger that can charge the TB any faster than the Stock 1A charger. Does such a thing exist?
A proper car charger with 950mA to 1A output should charge the TB at almost exactly the same rate as the stock 1A wall/AC charger.
And btw, the Moto SPN5400A car charger DOES charge my TB in about the same amount of time that it takes me to charge my TB at home with the stock HTC charger. So while its not "rapid" compared to the stock home/travel/AC charger, its "rapid" compared to PC USB Port charging, or a plain lower current car charger.
KidJoe said:
I've not seen a "home" or AC charger that can charge the TB any faster than the Stock 1A charger. Does such a thing exist?
A proper car charger with 950mA to 1A output should charge the TB at almost exactly the same rate as the stock 1A wall/AC charger.
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I made a charger for my motorcycle. I use it as a GPS, screen on MAX, phone active with marginal signal. And I wanted to actually charge the battery at the same time. I did a lot of experimenting with the Thunderbolt. It would not exceed a pull of about 850ma from the supply, even at 5.5 volts. IMHO, you are wasting time looking for any charger over 1 amp.
Also, even with about 850ma in, not much over 500ma is getting to the battery. So a totally dead battery is still going to take between 2 and 3 hours to charge, no matter what charger you have. And twice that long if the charger looks like a PC USB port.
worwig said:
I made a charger for my motorcycle. I use it as a GPS, screen on MAX, phone active with marginal signal. And I wanted to actually charge the battery at the same time. I did a lot of experimenting with the Thunderbolt. It would not exceed a pull of about 850ma from the supply, even at 5.5 volts. IMHO, you are wasting time looking for any charger over 1 amp.
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I was asking because of the OP's statement about knowing "they must exist" because they are out there for the iPhone.
I'm perfectly happy with my Moto car charger, and how fast it charges my phones.
I would like to get a charging cable that has 2 Male Micro USB connectors and 1 standard Male USB connector.
These are supposed to charge 2 cell phones through one USB charger, but I've read that you might need a higher capacity charger than comes with your single cable charger.
Will the standard USB charger that comes with our phone work, or will I need a higher capacity charger?
Thanks
OKAstro said:
I would like to get a charging cable that has 2 Male Micro USB connectors and 1 standard Male USB connector.
These are supposed to charge 2 cell phones through one USB charger, but I've read that you might need a higher capacity charger than comes with your single cable charger.
Will the standard USB charger that comes with our phone work, or will I need a higher capacity charger?
Thanks
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Our S3's can charge at approximately max 1.1amps and perhaps more on a custom rom. Our stock chargers will not likely provide enough to charge 2 S3's at that fast rate. But, instead it will likely charge both at half that rate. So. I would get a charger that can handle more than 2amps...preferably 3amps so that there is plenty of headroom especially if the charger specs are over-rated. The S3 will only use what it needs and of course, it will slow down the charge as it gets closer to being fully charged. Also, note that if the USB Y-cable or splitter is not wired correctly, then it may not charge at fast rate.
themadproducer said:
Our S3's can charge at approximately max 1.1amps and perhaps more on a custom rom. Our stock chargers will not likely provide enough to charge 2 S3's at that fast rate. But, instead it will likely charge both at half that rate. So. I would get a charger that can handle more than 2amps...preferably 3amps so that there is plenty of headroom especially if the charger specs are over-rated. The S3 will only use what it needs and of course, it will slow down the charge as it gets closer to being fully charged. Also, note that if the USB Y-cable or splitter is not wired correctly, then it may not charge at fast rate.
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Thanks. Where can I find a 3 amp charger?
OKAstro said:
Thanks. Where can I find a 3 amp charger?
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I have a usb 2amp cigarette lighter charger and it has 2 usb ports for charging and charges my S3 and an HD2 together at fast rate when I use proper usb cable(s).
On a 2sec Google search, I found this 3amp usb wall charger (2amp + 1amp) example...or this Scosche 4 port 4amp wall charger although it says each port is limited to 1amp max. You can always put in a USB Y cable making 2 ports merge into 1 yielding 2amp max output...if necessary.
Here is a 2 port x 2.1amp per port example..which would give you maximum headroom and might work well for more demanding tablet devices etc.
Hello all,
I am trying to figure out which is the fastest charger, wired or wireless for the Nexus 5. To do this, I suggest we gather measurements about the charging speed for the phone charging when it has less than 75% charge.
My results are the following so far:
T-Mobile dual usb wall charger 700-800 mA
this ebay Qi charger [1] 200-300 mA
[1] http://www.ebay.com/itm/Wireless-Qi...l_Phone_PDA_Chargers&var=&hash=item51b121c146
Note that the T-mobile dual USB charger was the power source when using the Qi charger and the same microUSB cable was used in both cases.
Does anybody have a wired or wireless charger that can charge faster?
Also, I am using the Elixir 2 app to measure the mA, is there an alternative that does not require the screen on (I feel that it may affect the measurements)?
The one that outputs more mah will charge faster.
Sent from my Nexus 5 using Tapatalk
They're both awful outputs u need at least 1000 mA / 1A output. You can damage the battery with underpowered charge rates
Also that eBay link states 1A output in the description
Sent from my Nexus 5 using Tapatalk
Guys, for the wired chargers, we are not talking about the STATED MAXIMUM OUTPUT here, we are talking about the output IN PRACTICE. Most chargers are rated for instantaneous output (it can output 1A or 2A or whatever is listed on the charger, but only for a millisecond, then the rate will fall off).
Please use the app and let me know what your rates for wired charging are (not that the rates fall off when the device is charged more than 75%, so try to test when the charge is lower than that). I bet the rate you find will be lower than 800mA, but if this is not the case, I am curous on the charger and cable that you use.
As for the wireless charger, I know it is very very bad, am trying to return it.
A poor/cheap usb cable will make a massive difference too. I once had a cable that wouldn't let more than 384mA through it!
Sent from my Nexus 5 using Tapatalk
Exactly! This is why I picked the cable I am using now, but I could not get over 900mA with this combination of cable + charger. The Charger is a T-mobile dual USB 3A charger and in my opinion it is very good.
The stock wired charger is rated for 1.2A and actually charges at just over 1 A. The charging chipset in the phone limits charging to 1.5 A max.
The nexus wireless charger charges at 750 mA max. Bad positioning and cases will reduce wireless charging efficiency though.
http://www.anandtech.com/show/7517/google-nexus-5-review/3
I've noticed that during wireless charging my phone will charge at 500-600mA up until 85-87% and after that it will charge at 300mA to 100%, so make sure when you are testing to test at lower battery capacity. Also, try wireless charging from a USB port of a computer, I've noticed that I got better performance form USB port than from 2A touchpad charger.
Sent from my Nexus 5 using XDA Premium 4 mobile app
Wired charging is always going to be faster than wireless charging. Wireless charging on the Nexus 4 Orb takes about twice as long as charging via the supplied wired charger with the Nexus 5. Technology is going to have to advance quite a bit before wireless charging eclipses wired charging. There is an inherent inefficiency with wireless charging that wired charging does not have.
i bough one of those white, skewed ones off ebay for 10€ shipped and am pretty happy with it!
I've had a nexus 5x before and own a pixel table. Both come with USB C port to charge. So i bought a itian qc3.0 charger at that time. (http://www.gearbest.com/chargers-cables/pp_389793.html)
Now i changed to the lg g6, but it refused to do the 'fast charging ' when i use that chargers qc3.0 port and even says 'slow charging' when connecting to the usb c output.
Is it the combination that's just flakey or did they put something specific in the original charger that comes with the lg g6?
I'm bit lost on the topic of chargers currently, anyone care to enlighten me on what should could would work?
Lg g6 is picky I think
Sent from my SM-G955U using Tapatalk
I'm using the charger from my Nexus 6 and my G6 says that it's quick charging. Only QC 2.0 on that one though.
Obscure Reference said:
I'm using the charger from my Nexus 6 and my G6 says that it's quick charging. Only QC 2.0 on that one though.
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wtf.. i hate your luckiness :angel:
Apb said:
wtf.. i hate your luckiness :angel:
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Works fine with my wife's charger from her Galaxy Note 4 as well. ? (Pretty sure that's a QC 2.0 charger as well.)
Does LG not provide a qc 3.0 charger with their own phone ??
Mine came with a MCS-H06UR charger.
Rated @ 9.0V 1.8A / 5.0V 1.8A
After a quick Google search I've had no luck ascertaining if this is QC 2.0 or QC 3.0.
From what I can tell, my phone charges as fast if not faster using the 5V/3A charger that came with my 6P.
From what I've read online, the LG G6 also supports USB-PD.
Sent from my LG-H870 using Tapatalk
Off topic a bit. Thoughts on overnight wireless charging. I have a great charging cradle that I want to use but don't want phone to crack at night from hours of heat. Sony z2 and z4v had issues with that
lg3FTW said:
Off topic a bit. Thoughts on overnight wireless charging. I have a great charging cradle that I want to use but don't want phone to crack at night from hours of heat. Sony z2 and z4v had issues with that
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Shouldn't really get hot once it's fully charged?
The charger that comes with it is a quick charge 3.0 charger and can completely charge your phone from zero in less than 2 hours easily. You have to use the cord that came with it though, or at least one that is compatible. If you look at the icons, you will see a different one than the usual charging icon. Pulling down the menu shows something about fast-charging when its active.
My experience comes from the Sprint version.
lg3FTW said:
Off topic a bit. Thoughts on overnight wireless charging. I have a great charging cradle that I want to use but don't want phone to crack at night from hours of heat. Sony z2 and z4v had issues with that
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i use one from Tylt each night since im always on-call. havent had a problem once.
None of my QC 3.0 charger fast chagrge my G6. The QC 2.0 chargers do.
I've bought a Choetech wall usb charger, QuickCharge 3.0 with its usb type-c cable, and when I plug it on LG G6, it says that there's fast charging.
https://amzn.com/B019Q5WT6W
I do not believe the LG stock charger is qc qc 3.0 compatible because its fixed mat output at 9v is 1.8a
qc 3.0 defines the max amps at each voltage level from 5v to 9v to 12v
I ended up buying anker qc 3.0 chargers for my car and for ac wall outlet. also bought their nice braided usb c cable. every combination yields a fast charger notification in the drop down and the ampere app confirms this. also watching the real time output is impressive from all these chargers.
the benefit to using a certified qc 3.0 charger is that the phone will tell it exactly what amps to deliver based on charge & temp.
further, the G6 has a heat pipe to help cool the entire phone including the battery, to help prevent a galaxy note scenario.
wireless charging is slow Qi spec and is NOT fast like samsung. however, slow charging over wireless is great for overnight.
I use anker's qi charging puck and it works great except I have to remove my case. same with the samsung fast charger puck. my wife doesn't have to remove the case on her S7 to do regular or fast charging. LG's design is obviously inferior for the Qi to pickup and activate the coil.
Today Amazon delivered also this Anker dual usb car charger (QuickCharge 3.0):
http://amzn.com/B01K9MQ8WW
and when LG G6 is connected it shows that is in fast charging mode.
Those who bought QC 3.0 charger and those who trying different cables with LG G6 charger, Try Cable from Oneplus 3, I get an improved charging of 10-20 minutes less compared to stock LG cable
The issue might be the cable you're using. I've had no trouble fast charging using an old ASUS QC 2.0 charger, or a cheap car QC 3.0 charger. Even when using microUSB cables with USB-C adapter tips, but I'm using decent cables (mostly Monoprice and Anker).
I've confirmed that the charger that came with my G6 is QC3.0 (model MCS-H06UR, UK 3-pin). Using a USB power meter, the voltage will increase from 5V to 9V in small steps. If I use a QC 2.0 charger (stock charger from Note4/S7edge), it will jump from 5V to 9V immediately.
tulving said:
I've bought a Choetech wall usb charger, QuickCharge 3.0 with its usb type-c cable, and when I plug it on LG G6, it says that there's fast charging.
https://amzn.com/B019Q5WT6W
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How much time does it take to charge fully? Did you record time ?
Hi all, I'm hoping that someone much smarter here can help me. **My phone is at 50% battery while conducting these tests. I've tried 4 different usb cables and 4 different vehicles and 4 different usb car plugs (1amp, 3amp 2.5amp 30w) my P6P only charges at 800ma but fluctuates wildly from 40ma to 400ma to 250ma to 800ma. I have turned off adaptive battery and the such. no joy. I don't recall this issue with A12. I'd really prefer to not have to factory reset...but......
PS I have no issues with same cables attached to my wall charge station, which charges 5 devices @1.5amp each. My P6P shows a steady 1500ma.
You aren't fast charging unless you have a PPS or PD charger with a Type-C cable. Doesn't matter which DC port or cable you use. Your car's USB ports are not fast.
VELOGK Super Fast Type C Car Charger [73W Turbo], Metal Adaptive 55W 45W PPS/PD&QC3.0 USB C Car Adapter[Super Fast Charging 2.0]for Samsung S22/S21/S20 Ultra/Note 20/10 Plus,iPad Pro/Air,Macbook,Pixel https://a.co/d/glhc0OY
LLStarks said:
You aren't fast charging unless you have a PPS or PD charger with a Type-C cable. Doesn't matter which DC port or cable you use. Your car's USB ports are not fast.
VELOGK Super Fast Type C Car Charger [73W Turbo], Metal Adaptive 55W 45W PPS/PD&QC3.0 USB C Car Adapter[Super Fast Charging 2.0]for Samsung S22/S21/S20 Ultra/Note 20/10 Plus,iPad Pro/Air,Macbook,Pixel https://a.co/d/glhc0OY
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I'm not talking about fast charging. I just need to get the 1.5amps I was getting before with the same setup as I was getting on A12 This is the charger I just bought hoping it would fix the sub 1amp charge rate I'm getting, Without getting 1 amp rate, my phone looses power while driving and using maps and such apps. This was not an issue with A12
Amps don't matter when you're still stuck at 5V.
It should work though. No point in buying a charger with only USB-A.
I had this issue Android 13 until Sept update even with USBC PD PPS 65W charger, phone was draining using maps. now no.
Also I do not believe that Pixel phone supports QC for quick charge so you might be lucky to get 1amp charging from USB A