USB Port Power Rating? Amps?
- Thread starter Elite130
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rigtec
New member
Hi Elite,
Most of the 'USB data port/battery charging stations' that I've seen hover around 5.1 vdc @0.2A ...fractional amperage capability ONLY!
Cheers
Saker
Senior Member
[MENTION=135521]Elite130[/MENTION] & [MENTION=83083]rigtec[/MENTION],
I found this one that will fit in one of your spare knock-outs.
Charger is rated for 3.1A at 5V DC output and can accept two USB devices same time.
AOB ~ Power Outlet 900S 12V DUAL USB Charger for Toyota Vehicles
Hope this helps!
I found this one that will fit in one of your spare knock-outs.
Charger is rated for 3.1A at 5V DC output and can accept two USB devices same time.
AOB ~ Power Outlet 900S 12V DUAL USB Charger for Toyota Vehicles
Hope this helps!
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[MENTION=103267]Saker[/MENTION] Thank you for the link. I purchased two of these off Amazon last week.
Robot Check
Looks to be very similar. I'm going to put one in the front center console and one in the rear armrest. I just needed something more than ~.5A
Robot Check
Looks to be very similar. I'm going to put one in the front center console and one in the rear armrest. I just needed something more than ~.5A
BobsTrail
Senior Member
I tried a few single and dual 12v chargers and they all did fine for a phone, but not for a tablet even though they were rated for 2 amps. I finally took my home charger - 120v and use that plugged in to the console box. You have to remember to turn it on each time you start the 4Runner but it works well.
A charger can't push more than a device can accept, so a 3.1A port won't be faster than a 1 or 2A port for most devices.
Also, because of USB standards, there has to be some rudimentary communication between the port and the device before the device will draw as much power as it can. Usually it's just a couple resistors on the data wires in the charging port that let the device know how much current it can pull. You could have a port capable of supplying 10A, but if it's not configured correctly your devices will charge at a very slow default rate, 0.1-0.2A.
There are some setups that allow faster charging when the device and charger are both compatible, for example, Quick Charge 2.0. If your device(s) support that you will get best results with a charge that also supports it. With that I think there is more intelligence in the charger.
I think the best solution is to install an extra 12V outlet if you don't have enough, then get something that plugs into that that works with the latest charging standards. They are changing on an ongoing basis, so in a year or two the newest devices might charge faster with something else.
For example, here's a 12V charger that seems to be good quality for most devices.
Robot Check
If you need Quick Charge 2.0, you'll want to get something like this:
http://www.amazon.com/Charge-Anker-...=1453932956&sr=8-7&keywords=anker+car+charger
I think QC 3.0 is also a thing.
USB C is probably the next standard, and it allows higher charging current. USB C devices might charge faster with a new charger than with anything you can buy today.
Apple, of course, only uses standards if it's convenient for them.
Also, because of USB standards, there has to be some rudimentary communication between the port and the device before the device will draw as much power as it can. Usually it's just a couple resistors on the data wires in the charging port that let the device know how much current it can pull. You could have a port capable of supplying 10A, but if it's not configured correctly your devices will charge at a very slow default rate, 0.1-0.2A.
There are some setups that allow faster charging when the device and charger are both compatible, for example, Quick Charge 2.0. If your device(s) support that you will get best results with a charge that also supports it. With that I think there is more intelligence in the charger.
I think the best solution is to install an extra 12V outlet if you don't have enough, then get something that plugs into that that works with the latest charging standards. They are changing on an ongoing basis, so in a year or two the newest devices might charge faster with something else.
For example, here's a 12V charger that seems to be good quality for most devices.
Robot Check
If you need Quick Charge 2.0, you'll want to get something like this:
http://www.amazon.com/Charge-Anker-...=1453932956&sr=8-7&keywords=anker+car+charger
I think QC 3.0 is also a thing.
USB C is probably the next standard, and it allows higher charging current. USB C devices might charge faster with a new charger than with anything you can buy today.
Apple, of course, only uses standards if it's convenient for them.
MayorBloom
New member
This is the best!!! thanks a ton, ordered it as sson as I saw your post...
I have that one installed as well. Works great.
I tested out our 2014 LE using a USB power meter. Used a Samsung S4 and Nexus 7 2012 with a monoprice premium USB data cable and charging cable
Both devices pulled ~0.45A when plugged into "Output 1" of the power meter. When plugged into "Output 2", which is supposed to simulate a charging cable, The Nexus 7 pulled ~0.8A and the Samsung would get up to >1.1A before the port would shut down. Turning the car off and on again would reset the USB port.
Tried my Nexus 6P, it pulled ~0.45A through Output 1 and would immediately shut down the USB port in Output 2. The meter would read >1A before the port would shut off.
So, looks like the port is set up for the std. data rate of 0.5A and can handle a bit more before shutting down.
My 2012 Prius v USB port will pump out 1.5A all day long. Sorta stinks that the 4Runner won't.
Both devices pulled ~0.45A when plugged into "Output 1" of the power meter. When plugged into "Output 2", which is supposed to simulate a charging cable, The Nexus 7 pulled ~0.8A and the Samsung would get up to >1.1A before the port would shut down. Turning the car off and on again would reset the USB port.
Tried my Nexus 6P, it pulled ~0.45A through Output 1 and would immediately shut down the USB port in Output 2. The meter would read >1A before the port would shut off.
So, looks like the port is set up for the std. data rate of 0.5A and can handle a bit more before shutting down.
My 2012 Prius v USB port will pump out 1.5A all day long. Sorta stinks that the 4Runner won't.
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