I have an Android car stereo that I can tether using WiFi, Bluetooth, or USB.
WiFi uses a ton of battery so that option is out.
What about Bluetooth versus USB?
Bluetooth uses the least battery, and I can connect it to a car charger allowing the phone to charge at a full 1A (or 2A?) maximum.
USB uses a bit less battery, but I must plug it into the stereo so it will only charge at 500mA.
Does anybody know how much battery USB tethering uses versus Bluetooth tethering?
Bt is a much slower throughput
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2
Even though bluetooth is a slower output, I'd still reccomend it over USB. It's always worked well for me
Related
I have been wondering how many mA will the wiz draws for recharging when not in standby?
I don't know if this will help but since the Wizard charges over USB, A traditional USB host must be capable of sourcing up to 500 mA of current to traditional USB peripherals.
Hope it helps; Lew
My 8125 pulls 100mA according to WinXP
The maximum specified by the charger is 1A, so that is what it should use wether in standby or not. It will just charge faster when in standby. You can use other settings although I would not recommend going above 1A although it could be possible without any problems. Obviously a lower mA will charge slower and a higher will charger faster. It's the voltage you have to be very careful with. Your pc USB port should be 500 mA. I'm sure you've noticed that charging from a pc is slower than charging from the oem adapter.
Now that all mobiles (i guess) will use this standard, does it mean I can use any microUSB charger with any mobile? (same for data cable)??
For example, I have HD2 and I also have Plantronic Voyager Pro BT headset which uses microUSB for charging. Can I charge my HD2 with the Plantronics charger (or the opposite)??
same question for car charger??
That would really make life a lot easier!!
That's the idea, yes.
However, having a proper connector is one thing, being able to charge a device is another. You'll need to look at the Amp rating on your charger, it has to be able to provide 1A (1000mA) or more to be an effective charger. Otherwise it may not have enough power to simultaneously charge your battery and power the device. Nothing bad should happen, so you can definitely try. Just be aware that it may not work properly.
You can definitely use a higher-power charger like the one that came with HD2 for lower-power devices like the BT headset. That will certainly work.
Not sure if this is a stupid question or not, but I have no idea...
What will give the fastest connection to my laptop to run off of?
Wifi?
Bluetooth?
USB?
The least energy consuming AND fastest would be USB. A wired connection is almost always faster than wireless and in this case uses less power (though your phone will probably start charging off your laptop)
From my experience: USB first, Wifi second, Bluetooth last. I always prefer USB tethering if possible not just for the speed but because it didn't deplete my battery.
i agree.. USB->Wifi->BT.
with the added benefit that USB won't heat up your phone+battery like the other two.
How can I disable USB charging on a rooted S4, or rather default to wireless when both are connected. Yes, I have read the posts about cutting the 5v wire, but want a less permanent solution that still lets the usb port function normally.
I have the Pioneer AppRadio 3 and use my phone for maps/GPS and pandora in the car. When the MHL HDMI cable is connected, it only charges at ~500mA (due to need to transfer data) which is not enough to compensate for the display, bluetooth and cpu usage, therefore my phone discharges when connected while driving.
I installed a wireless charging pad and receiver rated at 1000mA, hooked it all up to a hardwired 5V 2A power supply, and when it is in place, the phone charges as expected until I plug in the MHL HDMI cable. It then disables wireless charging and uses the ~500mA from the cable instead.
The MHL HDMI and bluetooth connection are required for the radio system to function.
Since it chooses USB over wireless when they are both connected, there should be a setting buried deep somewhere to affect which it chooses.
Any help is appreciated.
Cheers,
Brad
I have the Galaxy S8+ Snapdragon and I love (almost) everything about it.
I am on a mission to have a portable desktop experience, but I am running into an annoying issue. I cannot find any solution to maintain a positive charging state whilst mirroring to an external display. Fast Cable Charging and Fast Wireless Charging both drop to regular charging speed when I am connected via USB-C to any external device. Regardless if I use the Samsung wireless fast charging dock or a USB-C dongle with passthrough charging, I cannot maintain a positive charging state and my battery gradually, or sometimes hastily starts to decline.
I have tried
EP-NG930TBUGUS Wireless Charging Stand
in combination with:
direct USB-C male-male connection to ASUS MB169C+
direct connection to any monitor with Samsung Superior "4K Ultra HD" HDMI Adapter USB-C to HDMI Adapter
I have also tried a USB-C hub: Cynergy mini USB C Docking Station USB 3.1 4K HDMI and Ethernet Multiport Adapter with USB C Power Delivery for Charging and USB 3.0 Hub
Every setup works! Mirroring is displayed at 4k 60hz, 4k 30hz, or 1080p 60hz, depending on which device is used. The only problem is, no matter what settings I change or other battery draining services I disable, the battery keeps decreasing, despite being in a charging (not fast charging) state.
Has anyone else tried this or been able to achieve what I have not? If I cannot do it, HOW CAN DEX DO IT? My thought is that it must be in the software to enable it if Dex is recognized, because they know they have the phone on a cooling stand and they don't want a bigass battery explosion mishap like they did with the Note 7. So, they intentionally disable fast charging while connected to external devices.
Fast charging is disabled once the screen is on, how do you know dex still allows fast charging while running??
peachpuff said:
Fast charging is disabled once the screen is on, how do you know dex still allows fast charging while running??
Click to expand...
Click to collapse
Good question.
I gather that your point is fast charging is disabled with an external display is connected, because external displays are always on.
Unfortunately I do not have a Dex in my possession so I cannot speak to how it functions. That being said, regardless of whether my phone is in fast charge mode or not, my battery depletes when I am plugged into any external display. This includes external displays that have their own power source... like my TV for example.
So that would beg the question: how can Dex retain a charge on the connected external display when all other devices I have tested cannot? The only answer I can come up with is that the device allows an accelerated level of charging when connected to a predetermined external device. It makes sense, considering the Dex desktop experience can't seem to be invoked without being plugged into the specific Dex hardware...
Thanks for your response, I am looking for any and all constructive troubleshooting here.
Isn't the screen on when it's connected to the external display? That would disable fast charging.
Hi, did you find any solution? I'm on this mission too, in fact, i'm coming from a moto z because it lacks of hdmi output, and i think you already know that chromecast isn't a solution.