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...
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.
2060513
Dear Customer, Thank you for your interest in the CX420 car charger! Both ports will provide 2.1 amps to all devices connected to it. This includes iPhones/iPads and any other smart phone. Please don't hesitate to contact us if you have any other questions or concerns
2034821
well as far as i can tell its 1.2 watts x 2 would be 2.4 watts total so 1.2 per port.
629126
I would check with Wagan to be sure, but as near as I know the output from any port is standard USB at 2.1 amps. I hear some Samsung devices have problems due to their proprietary wiring of USB.
1116047
'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...
1924156
Yes. I have 2 iphones and an iPad. Everything can be charged. Port 1 is for the iPad (full speed charge).
2043903
I'm actually using a spare one for that function now. HOWEVER, it will only charge items at the USB limit of 500mA per port. Most true chargers are capable of 700mA to 1000mA depending on the device.
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.
685725
I'm pretty sure either one will be the same. Most chargers like this are a parallel circuit so there is no number one port, per se. The ports output equal amps unless marked.
767760
Hi Sheena: Jeffrey beat me to it. The only caution you want to take is to not treat this a 4 ports each capable of 15 Amps.With best regards
1062260
The output rating on this is 1.5 amps. Manufacturer notes, "Charge up to 2 small USB compatible electronic devices".
1655098
No, there are no problems if you charge cell phones on a 2.1Amp port, The rating shown here is a limit. so let's say your phone only allows charging at 0.7 amps, You can put it in any of the 4 ports.But let's say you have a tablet that can take up to 1.8 amps you can put it in the 1 amp port but it will just take longer to charge unless you are using it at the same time where it may not actually charge it would just keep you at the same level while you were using it.
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...
187426
Yes, there is 2 USB ports on there, one has a 2.0 amp output that will charge it perfectly almost 2 full times in one day
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)
706764
No, max is supposed to be 2.4 amp per port. Until someone can measure the output, it should be 2.4 amps. The one I got couldn't do 2.4 amps like the description said, I suspect it was less than 1 amp per port.