Is there a way to charge ya phone through the USB as quick as it would charge through the mains?
It takes for ever to charge through USB?
No. Because USB hub doesn't have as much output as charger.
I know standard usb gives 5V
how much does the wall charger give??
I have a freeloader solar charger, and don't know if I can use the 9.5V output on my desire.
jbej said:
I know standard usb gives 5V
how much does the wall charger give??
I have a freeloader solar charger, and don't know if I can use the 9.5V output on my desire.
Click to expand...
Click to collapse
It's not the Volts that's the problem its the Amps
The wall charger provides 1A, a USB connection provides 500mA, so half as much.
Ok thanks people
Never tested never heard about but maybe a Y-cable (2 standard A plugs on one side, a micro USB A on the other side) is what you are looking for. It provides the 500 mA from two individual USB ports. However, you have to make sure that both ports can supply 500 mA individually and simultaneously! E.g. a passive USB hub will not work since all USB ports have to share the 500 mA from the host PC. You would need a powered USB hub.
Get a cheap USB cable extender.
Cut it open.
Short the 2 data wires (white and green)
Tape it back up.
Use this in-between your normal USB cable and your USB port.
I just ran across this USB Card Reader/Hub for the Samsung Tab. The device has three USB ports and a card reader. It even has a plug for a 5V power supply.
http://www.ebay.com/itm/SAMSUNG-GAL...=Laptop_Adapters_Chargers&hash=item2316d2ac0e
Has anyone tried this thing? Does it perform as advertised? If it does, it may be the perfect accessory, especially when teamed with a power supply. On that subject, I wonder where one might find a compatible power supply that would provide the right amperage so it would work with the Tab.
Bob
^I would like to know also. If it works like it says, that would be the best thing ever!
I asked the company posting the device on eBay if they offered a power supply that would supply 2 amps. They said no.
Here is a question for some of the smart guys on this forum. Could the Tab be powered by a male to male USB cable plugged into the standard Samsung 110 V power plug and then in to the hub? The next question is if everything could be powered using a USB car adaptor that puts out 2 A.
Bob
Bump! Does anyone have experience with this device. If so, please post. Also, if anyone can answer the questions about the the power supply or USB charging from a car outlet, that information would be greatly appreciated.
Bob
I think you are misunderstanding the use of the power supply. I'm pretty sure the power supply doesn't charge the tab. It only powers the USB appliances (mainly for HDDs). An active USB-hub if you wish.
Regards
Achim
general1977 said:
I think you are misunderstanding the use of the power supply. I'm pretty sure the power supply doesn't charge the tab. It only powers the USB appliances (mainly for HDDs). An active USB-hub if you wish.
Regards
Achim
Click to expand...
Click to collapse
I am sure you are right. I wonder if the the Tab could be charged if a male to male USB cable was plugged into one of the USB ports and then to the stock Samsung plug?
I have that actually. I just have used it for an sd card though. Anyone want me to experiment something with it?
iknighty said:
I have that actually. I just have used it for an sd card though. Anyone want me to experiment something with it?
Click to expand...
Click to collapse
Great, you are just the guy I have been looking for. If you can come up with a male to male USB cable, plug one end into the device and the other into your Samsung charger puck. I am curious if the Tab will charge using this method.
Bob
dsafety said:
I am sure you are right. I wonder if the the Tab could be charged if a male to male USB cable was plugged into one of the USB ports and then to the stock Samsung plug?
Click to expand...
Click to collapse
Well, that depends on the hub. How it is designed. It may block current from flowing into the USB ports.
I have to check mine when I get home...
Mind you, USB current is limited to 0.5A and that isn't enough to charge the Tab and use it at the same time.
But, let me see if I understand what you're trying to do: Connect the 110V adapter to one of the USB ports. Power/charge the Tab through a second port.
As to your earlier question,about a vehicle equipped USB port... Same answer. It depends on how the hub is designed. Since I have Sync in my Ford I have a USB port and I can check that as well. I know the Tab works connected to it... just not a USB hub.
how's the test
so... any result from your test? can it charge the tab?
robobear said:
so... any result from your test? can it charge the tab?
Click to expand...
Click to collapse
I can't find my male/male USB cable. (I live in Alabama, and that sort of thing is against the law. )
Do i need a custom Kernel to get that capability?? I have a OTG cable that works for connecting a mouse, keyboard, thumbdrive etc and it has a port for power but the tablet does not recharge.
So i'm wondering if i need a custom Kernel or maybe the cable is defective or something.
If you know of one of those cables that work, please let me know.
Thanks in advance.
I have this cable out of China:
treetop777 said:
Do i need a custom Kernel to get that capability?? I have a OTG cable that works for connecting a mouse, keyboard, thumbdrive etc and it has a port for power but the tablet does not recharge.
So i'm wondering if i need a custom Kernel or maybe the cable is defective or something.
If you know of one of those cables that work, please let me know.
Thanks in advance.
I have this cable out of China:
Click to expand...
Click to collapse
I use a Otg Cable with an Usb Stick and a Usb Mouse,works fine with 4.4.2 and 4.2.2 with Stock Kernel
letschky said:
I use a Otg Cable with an Usb Stick and a Usb Mouse,works fine with 4.4.2 and 4.2.2 with Stock Kernel
Click to expand...
Click to collapse
And also charges simultaneously? That's what the OP is asking for.
Slimport adapter outputs HDMI signal and lets you charge the tablet simultaneously, but besides that... nothing else on stock ROM I imagine.
Iknownot said:
And also charges simultaneously? That's what the OP is asking for.
Slimport adapter outputs HDMI signal and lets you charge the tablet simultaneously, but besides that... nothing else on stock ROM I imagine.
Click to expand...
Click to collapse
Bummer! That's what i was afraid off.
Hello I have the same problem! : (
I installed the tablet in my car but you can not use the charger + OTG simultaneously.
You have to wait for someone to change the KERNEL as they did for the Nexus 7.
mannyy said:
Hello I have the same problem! : (
I installed the tablet in my car but you can not use the charger + OTG simultaneously.
You have to wait for someone to change the KERNEL as they did for the Nexus 7.
Click to expand...
Click to collapse
Nice setup! :good: That's exactly what i want to do. I can connect a mouse and thumb drive but no power. I was trying to work-out how to use a switch or relay or something to switch between otg and power but i haven't came up with anything yet.
treetop777 said:
Nice setup! :good: That's exactly what i want to do. I can connect a mouse and thumb drive but no power. I was trying to work-out how to use a switch or relay or something to switch between otg and power but i haven't came up with anything yet.
Click to expand...
Click to collapse
Hi everyone,
I had same problem!
My pad is rooted, 20b, stock kernel, Finally, find out solution.
I bought IBUFFALO usb with AC power around 15USD. 4 Slots for USB 2.0 and 1 double micro usb. Worked with mouse, Bluetooth keyboard, external drive with USB 2.0 only, usb 3.0 not work. Just for your info.
treetop777 said:
... I was trying to work-out how to use a switch or relay or something to switch between otg and power but i haven't came up with anything yet.
Click to expand...
Click to collapse
Difference between normal and OTG USB cable is that OTG has pins 4 (sense) and 5 (ground) shorted and on regular cable pin 4 is not in use. If you put a switch between these two pins you can switch between regular USB cable for charging and OTG for connected devices.
Some apps can be found on Google Play Store that claim to be able to switch between or enable simultaneous OTG and charging, but most are for specific devices or group of devices, none for G Pad 8.3. Most promising is maybe Faux123 Kernel Enhancement Pro (3.77€ and requires Root+Busybox+SuperSU).
Too bad our tablet has no secondary charging port (like Sony has magnetic charging port for example), but least intrusive would be to use powered USB HUB, let it power the connected devices so the battery drain on the tablet will stay low.
Iknownot said:
Difference between normal and OTG USB cable is that OTG has pins 4 (sense) and 5 (ground) shorted and on regular cable pin 4 is not in use. If you put a switch between these two pins you can switch between regular USB cable for charging and OTG for connected devices.
Some apps can be found on Google Play Store that claim to be able to switch between or enable simultaneous OTG and charging, but most are for specific devices or group of devices, none for G Pad 8.3. Most promising is maybe Faux123 Kernel Enhancement Pro (3.77€ and requires Root+Busybox+SuperSU).
Too bad our tablet has no secondary charging port (like Sony has magnetic charging port for example), but least intrusive would be to use powered USB HUB, let it power the connected devices so the battery drain on the tablet will stay low.
Click to expand...
Click to collapse
Thanks for that - Very good info! Allow me to pick your brain a little more: Looking at the cable i have (in the OP), do you think that by just connecting an external power (red and black) to the cable just before going into the tab would work somehow to give it power.
It's intreging what you said about being able to switch from regular USB (that can supply power) to OTG just by jumping those wires. I'm trying to picture something in my mind to accomplish what we want but the "light bulb" haven't came on yet - any suggestions?
I want to use the tab in the car PERMANENTLY so i need a way to charge it while behind the dash. I would want to use a mouse as well so OTG is a must.
In any case, i'm going outside right know to split open that cable and see how it's connected inside, maybe then the light bulb will come on in my head.
treetop777 said:
Thanks for that - Very good info! Allow me to pick your brain a little more: Looking at the cable i have (in the OP), do you think that by just connecting an external power (red and black) to the cable just before going into the tab would work somehow to give it power.
Click to expand...
Click to collapse
Try it out, you got the cables!
When pins 4 & 5 get shorted the tablet may be configured only to output power, not receive it. I have only OTG adapter cable and the supplied USB charging/data cable, so I cannot test this stuff.
treetop777 said:
It's intreging what you said about being able to switch from regular USB (that can supply power) to OTG just by jumping those wires. I'm trying to picture something in my mind to accomplish what we want but the "light bulb" haven't came on yet - any suggestions?
Click to expand...
Click to collapse
I would buy micro USB male plug, some heat-shrink tubing with glue, switch (3A) and split OTG adapter or HUB. Cut off the male plug fom the adapter, solder on the new plug to the adapter cable as normal USB, solder on the switch to pins 4 & 5 of the plug, check it for continuity and shorts, test it on the tablet, if good - secure the new plug to the cable with heat-shrink tubing.
EDIT: Possible solution with resistor described here
Our device, if it can be tricked this way, may require different resistor from the one used in the tutorial (usually in 36KΩ-200KΩ range).
Ok, I'm chopping it up! I spliced-in the red and black wires from a USB cable into the OTG cable (in the OP) and sure enough the tab gets power. However, it no longer detect the mouse or any thing else (kind of expected). Tomorrow i will try bridging pin 4 and 5 and see what happens. If that don't work, i will try the resistor. :fingers-crossed:
I have read that devices on OTG get polled regularly, but charging is not, i.e. if you start charging and after that short the pins 4 & 5, it will continue charging and you can use your OTG devices. Hope this holds true to the G Pad as well.
Isn't micro USB a "standard"....??
Then GEEZZ why do one manufacturer thinks it's ok to eliminate a pin completely! i assume that when i pay for that cable, i will get ALL 5 PINS even if one is not connected - rip-off! :laugh: This manufacturer not only didn't connect pin 4, it was eliminated completely; stopped me in my tracks! Fortunately, i have an extension that have of all things ALL 5 WIRES CONNECTED! Imagine that! But now, i don't have any time to chop-it-up until tomorrow. With the 5 wire cable, i will short the yellow and black wires but I'll check here first to see if I'm warned against it.
More to come..
Hi manny your car kooks awesome. I have one question. How you connect your speakers from the car with the G Pad. iam also interested to built a GPad in the car !
Sent from my GT-I9505 using xda app-developers app
Yep weneed more info on this as i would like to fit my pad in the van,, how did you get fm radio on there.
Nothing good to report. Connecting the power wire to the OTG cable and shorting the 4&5 pins does nothing different. I can have it charging and when i disconnect power, it then detects the mouse (that's a good thing) but when i plug the power back in, nothing happens! Ideally it would disconnect the mouse and start charging again but no-go. Having the 4&5 pins shorted or not makes no difference.
Still have a couple things i will try before i give up, one is the resistor and the other is a more simple OTG cable.
Will report back.
treetop777 said:
Nothing good to report. Connecting the power wire to the OTG cable and shorting the 4&5 pins does nothing different. I can have it charging and when i disconnect power, it then detects the mouse (that's a good thing) but when i plug the power back in, nothing happens! Ideally it would disconnect the mouse and start charging again but no-go. Having the 4&5 pins shorted or not makes no difference.
Click to expand...
Click to collapse
I understand that you would want the cables all hidden behind the dash in a car and can't be connecting and disconnecting plugs all the time, at the most just flip of a switch should make things work. The resistor trick would be ideal, if it works.
What's the exact sequence you did things in?
- Mouse and charger connected to the tablet simultaneously with pins 4 & 5 not shorted, tablet charging - short pins 4 & 5 - what happens?
- Only charger connected, pins not shorted, short pins and then connect mouse...
- Mouse and charger connected to the tablet simultaneously with pins shorted, mouse working - unshort pins...
- Only mouse connected, pins shorted, unshort pins and then connect charger...
Iknownot said:
I understand that you would want the cables all hidden behind the dash in a car and can't be connecting and disconnecting plugs all the time, at the most just flip of a switch should make things work. The resistor trick would be ideal, if it works.
What's the exact sequence you did things in?
- Mouse and charger connected to the tablet simultaneously with pins 4 & 5 not shorted, tablet charging - short pins 4 & 5 - what happens?
- Only charger connected, pins not shorted, short pins and then connect mouse...
- Mouse and charger connected to the tablet simultaneously with pins shorted, mouse working - unshort pins...
- Only mouse connected, pins shorted, unshort pins and then connect charger...
Click to expand...
Click to collapse
I would have to record in what sequence i do things to remember but it seem i have done every combination possible. I do remember doing these sequences after a fresh reboot of the tablet and BTW i made a simple cable out of a know working (single) OTG cable and splicing-in the red and black from the cable that has 5 wires connected, leaving the pin 4 wire disconnected and extending a pigtail from the black wire so i could short the yellow and black to hopefully force OTG:
- Power plugged in and mouse plugged-in then plug the cable into the tablet - it detects the mouse but does not charge.
- in the above state, shorted the yellow and black wire - no change.
- separated 4/5 then disconnected the mouse leaving power connected (expecting that the tab will then switch to charge but) - nothing. The mouse did disapear but the tab did not start to charge.
- shorted 4/5 (for ****s and grins) and as expected - nothing.
Again with a fresh tablet:
- with (ONLY) power connected to the cable, inserted the cable into the tablet - it started charging.
- in that same state, connected mouse - mouse was NOT detected but the tab continued to charge.
- with mouse plugged in, shorted 4/5 - no change (charging but no mouse detected)
THIS IS THE IDEAL SITUATION BUT JUST HALF WAY:
Rebooting the tablet with both power and mouse connected and cable inserted, the tab starts by accepting the charge (no mouse) but get this, plugging-out power makes the tab switch to the mouse right away! That would be good except that plugging the power back in does NOT make the tablet switch back to power, in fact, nothing happens, the mouse just continues to be detected.
If i had 2 cables, one only for power and the other only for OTG, i could pull one out and replace it with the other and both functions would work; i don't understand why that same "switching" can be recreated within one cable??
This is beyond me, the last thing i will try is following your sequences to the letter and with the resistor, if that doesn't work - i give up! :crying:
budalageo said:
Hi manny your car kooks awesome. I have one question. How you connect your speakers from the car with the G Pad. iam also interested to built a GPad in the car !
Sent from my GT-I9505 using xda app-developers app
Click to expand...
Click to collapse
i have buy a Sony mex bt4000U ... http://www.sony.it/support/it/product/MEX-BT4100U
install in rear a Tablet.. http://www.youtube.com/watch?v=5Y1QXAsSUtc
and work whith APP REMOTE http://www.youtube.com/watch?v=AEfG3Zdf7HM
---------- Post added at 11:02 AM ---------- Previous post was at 11:00 AM ----------
I have used this !!
have disassembly and install !!! work whit switch !!
http://www.ebay.it/itm/231182187439?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Not sure if this is a question for this forum but feel there will be a fair few experts on here who may know the answer.
Will a 4K firestick work by plugging it directly into a 2.1a 5v wall socket outlet with USB port?
Looking to buy a LAP 1-Gang SP 13A Switched Socket + 2.1A 2-Outlet USB From Screwfix
From what I’ve read, people have been powering their firesticks on TV USB ports with some success. Some have reported that less than 1 amp power on older or smaller TV’s would under power it. My concern with the wall socket may be too much power?
Pecoville said:
Not sure if this is a question for this forum but feel there will be a fair few experts on here who may know the answer.
Will a 4K firestick work by plugging it directly into a 2.1a 5v wall socket outlet with USB port?
Looking to buy a LAP 1-Gang SP 13A Switched Socket + 2.1A 2-Outlet USB From Screwfix
From what I’ve read, people have been powering their firesticks on TV USB ports with some success. Some have reported that less than 1 amp power on older or smaller TV’s would under power it. My concern with the wall socket may be too much power?
Click to expand...
Click to collapse
you will be fine using that. The amp rating is for the load it can handle. for example if you put a hub on it, you could power 4 devices that require .5 amps each. I believe the firestick 4k requires 1.5 amps (it may work on less but could cause issues)
Great. I was concerned the socket would be too much for it and perhaps overheat it or something and I plan on not using the plug Firestick plug (brick) which is fused
All Fire TV Sticks have a power adapter capable of delivering 1 amp of electricity. Of course, that doesn't imply a Fire TV Stick needs that much power to function, but it can theoretically draw that much power from the supplied power adapter.
So you may take advantage of that. Because if you put a hub on it, you can power four devices that each require 0.5 amp. In addition, this firestick needs a 1.5 amp power supply.