Vs985 on CM12. When I plug my phone with the LG's native USB into my Honda - it does not seem to charge. It only changes to show a battery indicator amount of charge. Even with charge only selected in the usb settings. If I plug my phone into my laptop it shows a lightning bolt in the battery icon and seems to charge? Is there some kind of a device I can plug into the usb or something I can do on the phone to enable usb charging?
If it were me, I'd try it on a stock LG ROM to determine where the problem lies.
abexman said:
Vs985 on CM12. When I plug my phone with the LG's native USB into my Honda - it does not seem to charge. It only changes to show a battery indicator amount of charge. Even with charge only selected in the usb settings. If I plug my phone into my laptop it shows a lightning bolt in the battery icon and seems to charge? Is there some kind of a device I can plug into the usb or something I can do on the phone to enable usb charging?
Click to expand...
Click to collapse
I sell Honda's and the usb port only works with Apple products,plug in an iPod or iPhone and it will charge it
Sent from my VS985 4G using XDA Free mobile app
abexman said:
Vs985 on CM12. When I plug my phone with the LG's native USB into my Honda - it does not seem to charge. It only changes to show a battery indicator amount of charge. Even with charge only selected in the usb settings. If I plug my phone into my laptop it shows a lightning bolt in the battery icon and seems to charge? Is there some kind of a device I can plug into the usb or something I can do on the phone to enable usb charging?
Click to expand...
Click to collapse
When plugged into your laptop, or desktop for that matter, your phone WILL NOT charge at the same speed as it would when plugged into a wall charger for the express reason that the outlet will provide a higher voltage, one capable of charging the phone, while the laptop doesn't provide as large a voltage through it's USB port because many USB operated devices for a computer require a much lower voltage to operate properly. As for the Honda charging, I believe it would be the same deal, but I'm not an expert on vehicles so I'm not positive.
6NomoN6 said:
When plugged into your laptop, or desktop for that matter, your phone WILL NOT charge at the same speed as it would when plugged into a wall charger for the express reason that the outlet will provide a higher voltage, one capable of charging the phone, while the laptop doesn't provide as large a voltage through it's USB port because many USB operated devices for a computer require a much lower voltage to operate properly. As for the Honda charging, I believe it would be the same deal, but I'm not an expert on vehicles so I'm not positive.
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Click to collapse
I hope you don't taste this the wrong way, but to some like me, it's a pet peace. ? The voltage is the same,the amperage is different.
I believe computer USB 2.0 and 1.x ports are normally limited to 500mA (half an amp). Some PC's USB drivers even let you monitor how much amperage each USB port is drawing when it's bring used.
USB 3.0 might be higher. I'd have to read again to be sure, but the additional amperage USB 3.0 might supply shouldn't require a USB 3.0 cable to take advantage of it.
Some implementations of USB in some PCs supply higher, and presumably some lower amperages than the known standard.
Sent from my VK810 4G
Related
Is there a program/driver that will allow the leo to pull more than 500mA when connected via usb? My TP2 (CDMA) has this installed and its bad ass. I can charge faster off things like a cable box (or my computer) than the wall. It pulls ~928mA.
Right now I have a Y adapter.. I plug the power only usb into the computer and the data into an external source (like a duracell powersource mobile). tBattery reads "AC" for charger input. Then, I unplug from the powersource and plug the data part of the usb Y into the computer, hopefully forcing it to switch to usb mode while retaining high current draw. No dice, its still on AC.. and the data cable is not communicating with the computer/phone. If i were to unplug the power only cable, it would probably switch right over to usb mode and WMDC would pop up and all that. But.. I would be limited to 500mA, which is.. really weak since the phone can only use about 150 of that for charging!
Charge with your phone off may help?
That is not possible, because PC can't give more than 500mA on one USB port.
Check in Windows device manager (PC) and find Generic USB Hub. Then look on "Power" tab.
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You can't. You could burn USB port in your computer.
Mike
This is a screenshot taken from my touch pro 2.. Plugged into the usb port of my laptop. This is possible. It also is possible with my cable box. It requires a driver/app from nuerom..
http://www.nuerom.com/BlogEngine/po...g-nueBattery2-For-TP2-CDMA-v12-Build-122.aspx
btw.. ports are either in high power or low power.. 500mA should really say 500mA+... Some ports are NOT capable of doing this.. I'd imagine I could trigger the same by connecting devices to all three of my usb ports on my laptop.
many gigabyte mainboards have the function to deliver 3x more power through usb ports. ive tested myself and can only confirm it is charging within 1.5~ 2 hours completely
Yeah - maybe, but if... higher charging amperage causing battery/phone overheating and dramaticly shorting battery life. I know, that dedicated HTC HD2 charger having 5V and 1A (1000 mA), but this is TRAVEL charger and should be used only in this situation by reasons previously wroted by me. I charge my LEO only with PC.
i think it depends on the charger itself. i bought a docking station and while reading the manual i came across a switch that changes the mode between "charge" and "sync"
this lets your device acknowledge that the charger is capable of providing more mA than a normal USB port so that it can draw more power.
The ac charger (or the battery driver itself) is smart enough to trickle down the charge rate as the battery reaches maximum capacity. We have an aluminum battery cover that seems to have a heat pad to transfer that heat from the battery. The battery driver probably has provisions to stop charging if batt temp reaches a certain #.
500mA charge is not enough. The phone itself is able to draw more current than a 500mA line could provide.
I just plugged a y adapter into my laptop. Plugging only the power portion in. tBattery says USB for charger input.. Taking the data/power 'part' of the Y adapter cable and plugging it into a usb power source (with no data pins, like a duracell powersource mobile) puts the phone into ac charger input. I disconnect the duracell charger and leave only the phone plugged into my y adapter to my computer... still says AC charging.
I'm now able to charge the phone using 1 computer usb port. World doesn't end. Phone doesn't explode.
Pictures are worth a thousand convoluted paragraphs.
Hey fellows,
I just stumbled across this sentence with the following link:
Motorola Drivers: if you don't have it installed already get it here:
USB and PC Charging Drivers - Motorola USAThat got me thinking; usb ports always output some currency, but apparently this can be easily guided to make the phone charge faster. And since a lot of people, including me, charge their hero / phone exclusively via pc, couldn't it be possible for people over here to play a bit around with high-power-output USB drivers ? Especially people who are into wireless tethering would be eternally gratefull!.
charging a battery with higher current or voltage can damage it, the charging was designed with the voltage given by a standard usb port. Charging from a computer charges at the same rate as it would being plugged into the wall when done over usb.
Feel free to correct me if I'm wrong but doesn't the wall charger provide more amps than usb ports? And amps are drawn as needed,its the voltage you got to watch out for!
wall charger provides 5v @ 1A
usb port provides 5v @ 0.5A
i think its impossible to get higher than .5A from a usb socket so i dont think this would work
ducamie said:
wall charger provides 5v @ 1A
usb port provides 5v @ 0.5A
i think its impossible to get higher than .5A from a usb socket so i dont think this would work
Click to expand...
Click to collapse
it should work flawlessly on laptops with special usb ports (my 3 years old compal has such one), so probalby also in other computers...
bad luck that this works only under windows, and there is no support for this in linux...
Oh I didn't know that USB provides 0.5A. I use USB, wall outlet (1A), and occasionally my car charger (2A split). Yes, my phone does it a little hot but nothing near danger level when charging with the car charger.
my bad, usually the usb port by where the ac adaptor plugs in is usually more powerful, well at least on the laptops ive owned in the past
The USB standard only allows for 500mA over USB ports when a device is connected and authenticated, i.e. drivers loaded.
Without this authentication, the USB standard dictates a maximum of 50mA - basically enough to get the device to power up, install drivers, and then hop into the higher power mode. If you just connect cables to the USB port you should only get 50mA as nothing will be detected by the OS.
However, most if not all USB ports ignore this part of the spec and provide full 500mA to anything connected. In addition, a lot of USB ports now provide power when the computer is off, and provide power above 500mA - you may have to enable these functions though.
as far as I know, those motorola drivers signal a device that requires '1.5a' of power, 1.0a more than officially allowed by the usb specification.
Not all ports will actually give that amount of power, but it's a but of an ugly hack to say that the device can handle 1.5a, and some ports actually give them 1.5a (ports on desktop-chipsets can behave like this. Most laptop-chipsets follow the 0.5a spec closely).
I know our heroes can take 1.0a at least (that is supplied by the default HTC wall charger, am I correct?). But a) don't know if more works with a Hero b) changes of this actually working (ie misbehaving usb ports) are slim
Mod. edit: not dev related, moved to q&a
usb is approximately 5 volts now matter what kind of drivers you are using. the +5v rail in the usb port is already the one being used for charging, so the answer is no. but i guess HTC still could have made some drivers that acctually work for win7 x64...
jell said:
bad luck that this works only under windows, and there is no support for this in linux...
Click to expand...
Click to collapse
may i interject and say that this is just as possible in linux as in windows. there just isn't a known method for it yet, and very few people knows how to compile working homebrew drivers for USB 2.0
this would be handy for me to charge my phone with less amperes as i cant use my G15,G5,surround sound hs and charge hero at same time.....computer says i just canny do et cap'ain i doont have the poower!
how can u disable the usb charging? even if its in mass storage mode its keeps on charging.. pls help..
What's wrong with the phone charging?
Isn't it a good thing?
Charge properly
You wouldn’t think that there is a particular technique to plugging your Galaxy S 2 in to charge – and you’d be right. However, you should pay attention to when you charge. If you’re constantly topping up your phone’s battery whenever you get the opportunity, you won’t be doing it any favours.
mulambo said:
Charge properly
You wouldn’t think that there is a particular technique to plugging your Galaxy S 2 in to charge – and you’d be right. However, you should pay attention to when you charge. If you’re constantly topping up your phone’s battery whenever you get the opportunity, you won’t be doing it any favours.
Click to expand...
Click to collapse
Who said ?????
jje
If i can find the link to a few sites ill post. But lipo batteries LOVE top up charging. Google it. Common knowledge.
Sent from my GT-I9100 using XDA App
Constant charging to 100% is actually bad for the battery, if you stop the charging at 90% your battery will live twice as long, with only a 10% drop in runtime.
I had an Motorola defy, and i am sure you could select not to charge the battery, when connected to your computer.
I'm also interested in the initial question...and my reason: if i connect my s2 with the mass-storage capable usb-port of a Samsung TV for viewing photos directly through the Media Player from the TV, i get an error from it saying too much current on usb because of the charging
so - how to avoid this?
A standard tv usb port does not provide enough power to charge the S2, you need a special adaptor that you plug you S2 charger into to provide extra power, see link below.
New Samsung TV`s don't know when, will provide more power to the usb ports so you will not need the charger in the future.
http://www.amazon.co.uk/TV-Out-Adapter-Samsung-Galaxy-G-HUB/dp/B005GCBVXM
GrandLX said:
I'm also interested in the initial question...and my reason: if i connect my s2 with the mass-storage capable usb-port of a Samsung TV for viewing photos directly through the Media Player from the TV, i get an error from it saying too much current on usb because of the charging
so - how to avoid this?
Click to expand...
Click to collapse
You guys are thinking of NiMh batteries, not Li+ batteries.
Li+ prefers a full charge, does not have a memory effect. If it stays at low power levels 10% it damages the batteries.
Li+ batteries have around 3000 to 5000 deep charge cycle, a deep charge is when you use to around 10% then charge.
It however has more than 2,000,000 micro charge cycles. Meaning you charge it at around 40%~80%
Battery has a cell life span, which means it is going to break regardless how you use it in 2 yrs time.
As for charging via TV, yes, you need a special cable, but that's for HDMI, not USB. The HDMI port is also the USB port on the phone. Standard USB Port supplies 5V 500mA, however, some Computers and Electrical Appliances with a USB port supply different amounts, depending on design.
Computers can supply 5V 1000mA, TVs might supply 5V but less than 500mA. Media Boxes might supply 5V but less than 500mA. Some USB chargers might supply 5V 1000mA but do not have signal in data+ data- lines, which causes the phone to lag while charging.
WIKIPEDIA KNOWS EVERYTHING. Wiki it, it will tell you it is true.. LOL!
so its oki if you plug the s2 to ur pc anytime and charge it anytime?
Pretty much.
I already got an adapter for connection via hdmi, but i forgot and tried to connect as mass-storage. Thought there might be a trick...
FWIW, I think I may have traced my recent charging problems to a Belkin USB charger at my office. On this power source, the battery indicates charging from USB, and apparently there's not enough current to keep up with the demand of the device. It discharges continuously with the screen on, and only keeps even with the screen off. The only way to charge with the Belkin is to turn the phone off.
With the included HTC adapter at my home, however (and with a Motorola adapter left over from a previous phone), the Rezound will charge with screen off, and perhaps even a little with the screen on. Allowed to charge overnight, I do not have to turn the device off when using the HTC charger. On this charger, the phone indicates AC power.
Of course, none of this was an issue before I took the ICS leak. Even though I've gone back to GB, I still have the ICS firmware, and I suspect something different in there is affecting charging.
In fact, I wouldn't be surprised if HTC simply lowered charging rates as part of a campaign to deal with widespread heat issues. If you were trying to cool the phone, that's definitely something you would consider tweaking.
For sure, it's a known issue, some chargers give the full 1A ( the phone indicates AC charging) and some only give 400ma or less (USB Charging).
Search around for chargers and there's good discussion on AC adapters that work well, and even how to modify a USB wall/car charger to give a full AC amount.
Both my gigabyte and msi motherboards are able to deliver up to 1.5A via the USB ports, and are even able to charge my phone (or tablet) when the computer is OFF.
a.mcdear said:
Both my gigabyte and msi motherboards are able to deliver up to 1.5A via the USB ports, and are even able to charge my phone (or tablet) when the computer is OFF.
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Click to collapse
for sure, but i bet your phone is only commanding 500ma from it since the phone is usb 2.0 spec... I too have a power port on my laptop to charge things when the laptop is off but it doesn't get over usb 2.0 spec because of the phone :x
I've tried everything, short of trying to make, or looking for, customized drivers to overload it.
thatsricci said:
for sure, but i bet your phone is only commanding 500ma from it since the phone is usb 2.0 spec... I too have a power port on my laptop to charge things when the laptop is off but it doesn't get over usb 2.0 spec because of the phone :x
I've tried everything, short of trying to make, or looking for, customized drivers to overload it.
Click to expand...
Click to collapse
You might be right when it comes to the Rezound, but I know for a fact that it is capable of supplying more than 500mA to some devices for charging. It charges my TF101 even with the screen on, which every other computer with ordinary USB ports seems incapable of doing. If I plug my TF101 into any other computer with a standard USB 2.0 port, it will still slowly discharge if the screen is on and I'm using it.
Either way, I notice absolutely no difference between charging via USB on my computer or via the actual charger, so I'm relatively sure the USB port IS outputting at least the full 1A that the actual charger is rated at, and I am NOT using a kernel with the "fast charge" mod..
I haven't really spent much time noticing how slowly the Rezound would charge on a regular USB 2.0 port. Maybe I'll give it a shot on my laptop tonight just to test it out.
Or, a simple ammeter would probably put the issue to rest definitely.. I wonder if I know anybody with one I could use.....
a.mcdear said:
You might be right when it comes to the Rezound, but I know for a fact that it is capable of supplying more than 500mA to some devices for charging. It charges my TF101 even with the screen on, which every other computer with ordinary USB ports seems incapable of doing. If I plug my TF101 into any other computer with a standard USB 2.0 port, it will still slowly discharge if the screen is on and I'm using it.
Either way, I notice absolutely no difference between charging via USB on my computer or via the actual charger, so I'm relatively sure the USB port IS outputting at least the full 1A that the actual charger is rated at, and I am NOT using a kernel with the "fast charge" mod..
I haven't really spent much time noticing how slowly the Rezound would charge on a regular USB 2.0 port. Maybe I'll give it a shot on my laptop tonight just to test it out.
Or, a simple ammeter would probably put the issue to rest definitely.. I wonder if I know anybody with one I could use.....
Click to expand...
Click to collapse
Or you could use a battery charging app to verify what rate it is charging at.
Sent from my ADR6425LVW using XDA
nosympathy said:
Or you could use a battery charging app to verify what rate it is charging at.
Sent from my ADR6425LVW using XDA
Click to expand...
Click to collapse
Which app do you use?
thatsricci said:
for sure, but i bet your phone is only commanding 500ma from it since the phone is usb 2.0 spec... I too have a power port on my laptop to charge things when the laptop is off but it doesn't get over usb 2.0 spec because of the phone :x
I've tried everything, short of trying to make, or looking for, customized drivers to overload it.
Click to expand...
Click to collapse
Use a charging only cable, i.e. Naztech Micro USB Charging Cable (sorry, don't remember who initially pointed to this), and the phone will see the source as an outlet and not a usb port.
plcline said:
Use a charging only cable, i.e. Naztech Micro USB Charging Cable (sorry, don't remember who initially pointed to this), and the phone will see the source as an outlet and not a usb port.
Click to expand...
Click to collapse
Well that makes sense, any USB cord without data points can only provide power and therefore the phone wouldn't be able to determine whether its a computers USB port or a charger. When the data pins are present, the phone must request a high-power mode from the computer in order to obtain the full 500mA on standard ports, or 1.5A in the case of some newer boards as I mentioned earlier.
when i tether to my pc via pdanet, my phone's battery gradually drains(which i'm sure you guys experience also).
has anyone tried out this cable(or one like it)? does it prevent battery drain?
voxigenboy said:
when i tether to my pc via pdanet, my phone's battery gradually drains(which i'm sure you guys experience also).
has anyone tried out this cable(or one like it)? does it prevent battery drain?
Click to expand...
Click to collapse
Yeah, but not as much as a normal charger. The thing is that when connected to PC, to my knowledge, the kernel limits the charge rate even more than the current limit that you get from the the normal charger.
Kernel limits current from wall to say 850mA, even if have a 2000mA charger.
Kernel limits current when connected to the PC to say 500mA, even if you have a Y cable with the power-only leg on a 2000mA charger.
Most USB ports can't even give more than 250mA, even though the USB spec states 5V, 500mA.
A Y cable would help you because it would let you get at or close to the kernel limited 500mA.
Sent from my SCH-I510 using Tapatalk 2
Yes the split cable helps a lot on computers with standard USB ports with 500mA power supply. My other computers have 1.5A USB ports, and those are able to charge just fine with the standard straight USB cable.