Does it have to be plugged in to work or can the usb charge it to use unplugged?
1061612
It has to be plugged in either to the wall or to your computer. There is no battery that can be charged to use it unplugged.
1061613
There are 2 power sources. You can either plug in to USB or the wall for it to work.
1663331
No, it does not need to be plugged in. However, I would advise you on NOT buying this. The light is not that bright and it broke on me in about a year. It collected water in the lighting compartment and is not very reliable
503192
It must be plugged in to work. It is an inverter, not a portable power pack.
1768812
You keep it plugged in and charging while not in use. When you are ready to use, simply unplug and it is ready to go. Very simple. Great machine.
395311
Yes it works plugged in. I have never picked it up and found the battery dead. While using, if the battery needs charging, a red light comes on to indicate it needs charging. So when I am done using it, I plug it in. I have not yet had it die while using. Good battery life.
1423456
Hello! you charge it directly from the electricity stream on the wall with the charger, and once the battery is full (the light changes from red to green), you don't need to have it plugged. Of course, if you want, you can leave it plugged anyway.
875739
Has to be plugged in while using. BTW, this is a great deal because Rite Aid sells them for $30.
1473578
Yes, it can also be plugged in and it does come with the cord. It still need to be charged though.
755598
it does run plugged in but the instructions recommend against it so the battery can charge and then be used and charged again.
1924545
It works without plugging, u plug it only to charge it, and u can charge it even at home
378200
Yes and no. It needs to be plugged in to charge the device but after its done charging. You can used it without it being in the plug in.
423584
It needs to be charged. I bought a car charger for it and keep it plugged in all the time!
1801580
No. Once it's plugged it will turn on perfectly. Once unplugged, it will turn off and rest.
1291287
It has to be plugged in to a USB port. It works when the computer is in sleep mode but not when the system is off. Good product, no regrets.
1155924
No, you'll have to charge it for a few minutes and then leave it plugged in to use it.
2001918
One more thing, if I unplug the USB from the plug to use stand alone without extra power, but to use the device's charged power, it works fine also.
378202
It has to be plugged in in order to charge, and since the battery life is only about 45 minutes, it's easiest just to leave it plugged in all the time