the charger itself has two settings. 1 amp and 2.1 amps. which is preferable for an iphone?
1509145
I've only used it once and don't know which one I used, but I did read about the amperage in some of the product reviews. I think you'll find your answer there.
1509146
The 2.1 amp is for Apple, the 1 amp is so you can charge other portable devices simultaneously.
2028714
It's a 2 amp charger. I use it for my iPad. I would say that it will charge a tablet or large phone no problem
48342
I'm not an expert by any means, but it seems to my understanding that 2.1A would be more powerful than 1A. These numbers with the "A" refer to the input and output strength of the charger/battery pack. You have to plug in the charger first to fill it up so that you can then charge your phone or device. A charger with a 2A input means that when you plug the charger into a wall socket to charge it up, it will charge at a faster rate than if you had a charger with a 1A input. Same thing with the output: a 2A output charger will charge your phone or device quicker than a 1A output charger. I hope this helps. I'm not an expert by any means, but it seems to my understanding that 2.1A would be more powerful than 1A. These numbers with the "A" refer to the input and output strength of the charger/battery pack. You have to plug in the charger first to fill it up so that you can then charge your phone or device. A charger with a 2A input means that when you plug the charger into a wall socket to charge it up, it will charge at a faster rate than if you had a charger with a 1A input. Same thing with the output: a 2A output charger will charge your phone or device quicker than a 1A output... » Read More I'm not an expert by any means, but it seems to my understanding that 2.1A would be more powerful than 1A. These numbers with the "A" refer to the input and output strength of the charger/battery pack. You have to plug in the charger first to fill it up so that you can then charge your phone or device. A charger with a 2A input means that when you plug the charger into a wall socket to charge it up, it will charge at a faster rate than if you had a charger with a 1A input. Same thing with the output: a 2A output charger will charge your phone or device quicker than a 1A output charger. I hope this helps. « Show Less
1439352
You should be using the one that says "Output1: 5V/2.1A". I have an iPad 2 and it will actually charge on either port but it goes faster when connected to the 2.1A port.
1407311
Yes you can charge an iPhone 5. I haven't seen any over heating when I've used the 2.1 amp. The 2.1 is suppose to charge your devices faster. It is suppose to work best with the devices that have the 3.0 charging ports, but I've used it on my nexus 5 and it charges it a lot faster.
1304463
750 milliAmps (0.75Amp). An iPhone or iPad mini charges best with 1A; regular iPad is best with 2.1A. This charger will not charge two Apple iOS devices at the same time.
521962
Works fine. The 2 amp outlet is for the iPad. The other is for your phone. Be sure you have the right cable for your iPad. Some only work for phones and can't handle the higher amperage of the iPad. The apple cables always work, or get one that says good for an iPad.
754275
I do not own any I products, but the answer should be yes. Since this is dual voltage, If the 2.1A port will not work for the Iphone then you can use the 1A port instead. I have used both ports on all my android devices and have not had any issues with either port.
225201
The 2 amp is theoretical for tablets but wor good for smartphones due to bigger batt really it doesn't matter which one you use ....the 2 amp is supposed to charge quicker
1189479
The BLUE outlet provides 2 amps and the other side provides 1 amp. You have to review your specific phone charging requirments to determine if that is enough power. Generally speaking, most phones and tablets will charge (although slowly if you are also using the phone/tablet at the same time) on the 2 amp side. The units will charge more quickly if they are not being used. This works well if you are in the car and your charge is running low. You can be powered up again by the time you get where you are going. Hope this helps.
1498583
The charger has two usb ports, a usb2 and a usb. I see no reason you should not be able to charge two at once though I have an iPhone 4. That charges quite quickly.
442069
Definitely. It's designed to charge an iPhone (or a different smartphone of similar capacity) and a tablet at the same time, with an "S" slot and an "A" slot, one for a tablet and one for a smartphone. However, the max Amps the entire charger outputs at once is 2.4 amps, and amps are what actually adds charge to your device's battery. One slot gets priority for amps when both are being used but I'm not sure which one.But basically yes it should definitely be able to charge those two phones at the same time.
2021129
Both ports individually will provide up to 3.1 amps as long as there is only one device attached. When two devices are attached the "A" port gets the bigger share of the 3.1 amps and is the only port to use with an iPad. Clearly, with two devices attached neither will charge as quickly as when any one device is charged by itself. The 3.1 amp total combined output is inadequate to charge two iPads simultaneously.
1837049
No, I would look for a 2 amp charger. It will say made for iPad on it. This is a 1 amp charger for iPhones and iPods.
2223445
It uses a standard USB out for both outlets. One is 1amp and the other is 2.1 amp. It charges my IPad Air and IPhone 5s easily and can do so at the same time.
1722105
it all depends on your device and what it needs to charge. If you don't have anything that requires 2.1A and is fine with 1A, then you are fine with the 1A
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.