How fast can this charge a fully drained battery (say in a high end Android device, &gt;2500 mAh) as opposed to plugging to a regular power socket?
69870
It should be similar to your charger. If you use a two amp port it might be quicker if the device allows it. I have never timed it versus my charger.
913422
@ 750mA (shared between the two ports) it will likely charge a phone in a reasonable amount of time, but don't expect that out of a tablet or when charging two devices simultaneously.
1484039
Yes, it seems to charge pretty fast. However, like I mentioned in the review it also seemed to drain faster if I used this charger.
2005671
If I charge this and leave it in my car, as back up, will it drain faster under particular conditions?
1586757
This charger's max charge rate is listed at 5.0 A (5000mA). From here you just do the math... mAh = milliAmphours. If your battery is a 1600mAh capacity, that means you can run an electronic device drawing 1600mAh for 1 hour before your battery is exhausted. The same thing applies to charging. If you want to charge your 1600mAh battery at the 5000mA rate, it would be 1600/5000 = 0.32 * 60 minutes = 19.2 minutes total charging time. For your 3200mAh battery, it would be 38.4 minutes. Hope that helps!
1708360
With a 10 watt wall port my phone charges just as fast as it would normally at 5 watts. Keep in mind though that the connection is more reliable than a micro usb (i.e. you don't have to worry about breaking the connector every time your phone gets knocked off the night stand like you do with a standard cable) so it ends up charging faster than most cables. (at least in my experience)
1595959
It seems your questions have been answered already. I have the 16000mah version. My wife and I went camping for three days and took this with us. It charged both of our phones (S3 and iphone5) all weekend, and had more than 50% charge when we got back. This 12000mah version has enough power to charge the average phone from dead to 100% 5-6 times minimum. A usb cord that charges a galaxy will also charge this device.
334725
Absolutely! Charges almost faster than being plugged in to a wall socket...
1720758
As the others said, it varies.But in my experience, on 200 mA it charges the fastest batteries in about four hours, and my oldest batteries take around 24 hours.
1455705
Definitely by using the included wall adapter. It's faster than using any kind of phone charger because the amperage is higher, 1.5 amps
1468268
I have the 500mA output but I think newer version is 1Amp but even that I would think is very low for a tablet so if it charges at all I can only imagine it will take forever
1239727
Yes, this should work perfectly for any device that charges by USB. A higher power charger simply means it is _able_ to supply more power to a device. It doesn't force any extra energy into a device that doesn't require it.
839773
I haven't gotten a chance to use it yet but figure it this way ... If you have a newish Samsung device or IDevice and it charges it should be at least 1 amp. If it fully charges a device like the Samsung 4 its probably 2 amps. I was slightly peeved when I got this and it didn't have the normal conversion sticker like other solar usb devices. We both have to hope we didn't buy an 8800 maH battery that doesn't charge anything in the 21st century.
874984
I use a high-output USB power source (1.35 A) and a 'USB Charging Cable' with my charger. I drop my Google Nexus 7 ('13) on it at bedtime and it's fully charged when I get up. Otherwise, it charges at about 65% - 75% of the rate you would get by plugging your device directly into the USB cable. This is the same as saying that the Qi takes an additional 1/3 to 1/2 again the amount of time to charge. Fast is relative. It' really convenient, though.
2171296
With 500mA US charger, it takes 4-6 hours to charge this from zero to full in my case.
1167946
I have a nexus 5 and it takes about an hour to charge. If I use my external battery it takes maybe 15 minutes to charge to full.
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.