What's the difference between a 2.1A charger and a 1A charger? :S
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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
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The amount of power sent from the battery to the device, which is directly to the amount of time required to recharge the device (the bigger number charges faster.)
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The speed at which it charges devices. If you have a device that supports 2.1A it will charge much faster than on the 1A port.
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The rate that they will charge a device. But the device must be designed to accept the higher (2.1Amps) charging rate. Most newer devices will charge at the faster (higher) rate. You should check you device specs. The Limeade does both!
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The 2.1 is a faster charging port for newer devices, but you can really use either one.
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1A port can charge a smartphone; another port (2.1A), is for larger devices, such as the Apple iPad and other tablets. Currently there are smartphones that accept the 2.1A input as well.
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The 2A is generally for tablets (iPad or Nexus7), as the 1A is for most phones. Depending on the size of your phone battery depends on how many times it will charge it. This pack will charge my Nexus7 (2013 model) about 2.75 times, it will charge my iPhone 4S about 5 times. Another option... I use one of these as a UPS unit for my Raspberry pi VOiP server.
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That's what I'm using one of them for. Works well, but make sure you get yourself a 2.1amp charger. You'll thank me later.
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If you are referring to the 1.0 charger DO NOT use it with these batteries. If is is a electrical tape type material, it may be you got the wrong battery. There is a similar model without a case, but a wrapping. They work fine on the 2.0 charger but don't have the circuit which stops them from overcharging, and it is dangerous to overcharge them.
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They each have a different charging rate. The NEW charger will charge within a matter of hrs. The other doesn't.
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I think this was 5V/1A output. Its a little slower than plugging it into Wall. Yes it will take longer for phone to charge on 0.5A than a 1A. There are a few chargers like Alpatronix which have 2.1A output as well.
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Considering the 2.1 A current limit coming from both ports, I would say that while you could charge 2 ipads simultaneously, they would probably take a while to charge up. It would be faster to charge 1 then the other, or charge 1 via USB and the other via the AC socket and the OEM charger.
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The first one you use Will always charge at the full 2A rate. If while one item is charging you charge another item, that port will always charge at the lower rate.
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the 2.1A USB is capable of charging the ipad, while the 1A USB is more suited for an iPhone. as far as iDevices go, phones and ipods and such can be charged in either port as it will only use what it needs. the ipad, however, needs to use the 2.1A USB because it needs that amperage to charge.
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You can use either but the 2.1 amp will charge faster and is designed for newer devices like the Note or iPad.
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From my understanding the "real" Samsung Charger is a 2 amp, not a 1. This is listing itself as a 1.0 amp, so I would question its authenticity.
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Easily , charge it with Mini USB cable , and the difference betwen 2.1/ 1A is the speed of charge , for example the ipad need 2.1A if you use with it 1A this will causes a problem with the time for battery . Hope I answer your question
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They both are connected to the same circuit inside, and it is the total current of 3.1A that matters. So any one of the port you can use for charging a tablet (and it will take 2.1A current from that port), and the other port can be used to charge a smartphone (which will take 1A current from that port). Thanks!
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You should to use the 2.1A slot if you want the fastest charging times. The battery charging base can send 0.8A per battery slot at a time. If you plug it into the 1A USB charging slot, then you can't send more than 0.5A of current to each battery at once. Using the 2.1A slot allows you to send the maximum 1.6A of current (the battery charger will only draw what it needs ... the 2.1A rating on that charging slot is the maximum it CAN put out, not what it HAS to put out). If you wanted to charge an iPad at the same time (which requires more than 1A of current), then you would need to plug the iPad into the 2.1A slot and just settle for longer charge times on your GoPro batteries while connected to the 1A slot.
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I see the home charger ports clearly marked 1A and 2.1 A, but the car charger ports are not marked. I will try to test the amperage on each port soon and do another follow up review.
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The 2nd picture is a little 'card' with two prongs that goes inside your cover next to your battery.You still need a charger for the wall. I recommend a 2.1Amp.