if i charge just one device can i get the full 4.2 amps? orr is it 2.1 amps per port?
650315
As others have stated you can't exceed 2.2 to 2.4 on a given port, but that wouldn't matter, because it isn't the charger that decides the amps to charge at it is the device. The only thing the cable and chargers do is supply enough amps and low power loss. An average device won't pull above 2 amps regardless of the output of the charger. The S4 pulls 1.8amps at its full draw and its oem cable and charger are rated for 2.1 if i remember correctly.
650316
No, the most you get from each individual port is 2.4 amps. Or the 4.2 amps using both at the same time.
650317
I don't know the amp break down but I do know it charges like no tomorrow. You can charge a iPhone and a iPad in short order. You won't be disappointed...
2034823
It's 2.4amp total. If one device is charging, it would pull a maximum of 2.4amps. If two things are plugged in, they would share the 2.4amps.
1339440
I really wish people would look more closely at the product. I myself am trying to find the same information as you and almost bought this unit. However, taken directly from the manufacturer's website (Accell), I found the following: USB CHARGING: 2 Ports, 5V, 2.1A Shared. So unless the manufacturer incorrectly described it's own product, this, just like most others, have a total of 2.1A for all usb ports. If using both usb ports at the same time the 2.1A will be split, reducing the charging time of 2 devices (ipads, tablets).
1800578
Hello Tim. The USB ports can be used for charging one 2.1Amps device or two 1Amp devices.
1888538
From their site : " 2.6A output allows you to charge more devices faster & at full rate. " It doesn't specify a per socket or total amperage but I would lean towards the total.
2013564
It has a 1 amp port and a 2 amp port, I charge my iPhone and iPad at the same time but you can't charge two iPads. Look at the output rating on your plugs.
2005292
The power supply that comes with it is rated at 2.5 amps, so I would say that if the total draw is less then 2.5 amps then you would be good. The max you are supposed to draw per port is 0.5 amps, so times 4 would be 2.0 amps. It'll probably work even if all four on at the same time.
1890991
I use this purely as a charger not as a USB hub. The key is being BC 1.1 compliant. I charge an iPad and iPad mini at the same time. It can pump 2.5 amps max across all ports. It will charge all 4 devices at normal USB rates but if you only hook up 2 devices they should both charge twice as fast! (1000 mA rate)
1339438
I really wish people would look more closely at the product. I myself am trying to find the same information as you and almost bought this unit. However, taken directly from the manufacturer's website (Accell), I found the following:· USB CHARGING: 2 Ports, 5V, 2.1A Shared.So unless the manufacturer incorrectly described it's own product, this, just like most others, have a total of 2.1A for all usb ports. If using both usb ports at the same time the 2.1A will be split, reducing the charging time of 2 devices (ipads, tablets).
1992687
There is only one USB port so you can only charge both devices at the same time if you have a splitter. Otherwise you can only charge one device at a time.
2101921
I have one of these and charge Samsung and iPhone's on it (and up to 4 devices simultaneously). However, there are no AMP markings over the ports and the "owners manual" that came with it does not specify. With a supplemental power supply, you shouldn't have any issue charging, but it may not be "rapid charging".
1076745
Both ports charge at the same rate(5V/2.1A. They are the same. Only the copy on box states they are different. Not really.
1396249
Most PC's and chargers limit the current to about a 1/2 amp. That's due to the USB 2 spec. There are a few, such as Apple, Kindle, and others, that charge at higher currents. I would have no reservations using this extension at 2.1 A. Go for it.
1008176
You only want to use the correct amperage for your device. I believe that this device requires the 2.1A charger.
1647882
Based on my experiences, I would say only two would charge properly using the 2.1 amp slots. I would not trust the two 1 amp slots as my devices had to be turned off to charge or would end up depleted in the morning, even though they last over a full day without charging.
1116043
'Over-amping' a device is impossible by the laws of physics. So no worries there. The amperage listed per port is the maximum that port is capable of supplying. A device will attempt to consume the amps it was designed to up to the limits of the port it is plugged into. More amps means faster charging.This is all before Apple enters the picture because they do strange things to try and force their customers to buy only their products. So a 2A 'apple' port may not supply the full 2A to non-apple devices and vice versa. Unless Apple got their act together which I doubt...
1538453
If you use an adapter it will charge the newer devices. You need one adapter per device.