If I were to use a 2A USB adapter to charge the power bank, would it possibly damage it, or would it gracefully only draw 1A of power?
1129643
I have used different charging cords and they all charge the phone and charge the external battery.However the speed and rate definitely depends on the ability of the cord.
1129644
U can't force more than it draws on electrical components. Common misconception.
1129645
I do not know. I may have connected the power bank to to a 2 amp adapter; but I am not sure. It does charge the 2 amp Ipad.
399382
Shouldn't hurt at all. Computer will only draw what it needs. It won't fry any more than plugging that 90w charger into a wall outlet that has about 1800 watts or more potential in it. (120V X 15A)
1483624
I agree with JohnBoyToo. An AC adapter / charger is of marginal value (unless you bike ride or hike a lot, and want the convenience to recharge it in the motel). As far as another AC charger damaging the unit, I haven't heard anything about this. It "may" not charge, but I have no idea if it will cause damage.
318737
I would not use more than 1 1//2 or 2 amp charge. Most chargers have a switch for this. Jump starting is probably not a good idea, although I have never done it.
675602
There are many USB chargers, max 2 amps. The 1 amps give a better charge, the 2amps give a faster charge. I used the one that came with my cell phone. All USB ports are supposed to put out the same voltage which is around 5 volts. So anything that will charge through a USB port will work.
1787322
i plug in a couple of external drives w/out power source all the time. works just fine. don't know if it'll power more than 2.
1099673
In what capacity won't it charge, if you are using a computer it should be fine, if you are using a ac wall charger then it probably isn't the proper AMP rating to charge it.
623374
I have and it worked, don't know how it affects the charging of the Poweradd though.
1913982
2A = 2 Amperes, as in current for charging tablets and more power-hungry devices. I don't know the answer, I'm just clarifying for those that don't get it, and those that might be able to answer.
2110042
I have used the 2.1 amp port to charge my Blackberry cell phone and it is really quick. However, it can really damage the battery if left on it too long. I take it off after about half an hour and so far I haven't had any problems.
552128
Hypothetically yes. The only thing I can think of that might be an issue would insufficient power from the adapter, but you shouldn't have an issue.
1415256
Actually there are such things as dc-dc converters in devices.I have 5v mini/micro usb portable charger that uses a single 1.5v battery.So it can be done.I've also read that the xoom has a menu setting that allows charging via the usb lead.Also Mr Partridge needs to learn that mA means milli-amps. So usb 2 can deliver 0.5A or 500mA.Most phones try to suck out 0.8A (800mA) yes, that is why some USB ports can't charge a device as the phone makers are breaking the usb2 spec. USB3 now has a limit of 0.9A thankfully.
1564713
The AC adapter says 1A on it. It appears that it provides the max of 500ma per port. I connected my android phone to charge off of the hub, and it's reporting that it's being charged via "USB" which means it's not drawing more than 500ma. When I charge my cell with a direct usb wall charger (that came with my phone), it reports being charged via "A/C" (1amp). The power cord is 5 feet in length. Also, the USB connector (which is attached and can't be disconnected from the hub) that plugs into the computer is also 5 feet in length.
2174899
It shouldn't be a problem William. I don't have mine close by as I am out of town but most usb adapters provide the proper voltage to charge. If I recall, it comes with a cable that plugs into the computer but I can't see where it would be a problem. It really is a good little speaker for the price.
1604606
The adapter on the one I received states that it is only 250mAh. Not sure that is really enough to power anything......
1221793
...the unit charges at 18.5 volts.....as long your device being powered is less than 18.5 volts, the unit will charge itself and provide power via the usb or dc.....I'm doing it right now with this laptop I'm using....the powerbrick died on this laptop.....this laptop uses 12 volts so, the Poweradd can reasonably provide output to the laptop and charge itself at the same time.......I have another laptop that is 19 volts and the unit continually depleted while plugged in to the wall to charge.....but it still provided power to the laptop....
372173
Your device will only draw as much power (ma) as it needs. As long as the voltage is ok and required ma is at or above the needed level, you should be just fine.