can i charge this without using the AC plug port? I would like to charge it off my laptops USB and then use it to recharge my phone later.
1325076
Well if you want it to take an INSANELY long time, at about .... what's the spec for USB? 2.5 watts? yeah that would take way way way too long, probably 7 or more days, 24 hours plugged in. You can go get a 28 watt solar panel ( I learned very recently that if you multiply volts and amps, you get watts, so that's cool) I think this thing takes about 30 watts to charge at it's rated speed, so 2 or 3 watts below that won't hurt anything unless it's like a really critical situation and this is desperately needed to be charged in that situation, in which case it should have already been charged prior to this situation! Well if you want it to take an INSANELY long time, at about .... what's the spec for USB? 2.5 watts? yeah that would take way way way too long, probably 7 or more days, 24 hours plugged in. You can go get a 28 watt solar panel ( I learned very recently that if you multiply volts and amps, you get watts, so that's cool) I think this thing takes about 30 watts to charge at it's rated speed, so 2 or 3 watts below that won't hurt anything unless it's like a really critical situation and this is desperately needed to be charged in that situation, in which case it should have already been charged... » Read More Well if you want it to take an INSANELY long time, at about .... what's the spec for USB? 2.5 watts? yeah that would take way way way too long, probably 7 or more days, 24 hours plugged in. You can go get a 28 watt solar panel ( I learned very recently that if you multiply volts and amps, you get watts, so that's cool) I think this thing takes about 30 watts to charge at it's rated speed, so 2 or 3 watts below that won't hurt anything unless it's like a really critical situation and this is desperately needed to be charged in that situation, in which case it should have already been charged prior to this situation! « Show Less
59
Mine recharges from the USB port. If is standard USB no problem. If you have an AC to USB converter, you're fine.
1464168
No, but you can use most of AC charger that has USB. I am using AC charger for tablet.
217899
There's an AC adapter to charge it....I haven't tried keeping it plugged and using it - but once charged it will keep for quite a long time I've noticed!
1191289
No, the device charges with a micro-USB, icluded. The other end IS USB so if you want to charge AC you will need a USB to AC adapter.
1169687
Yes it can. I think you mean to ask 'can it be charged with 220 Volts AC. The battery generally charges though the phone, which is through the USB line, which could be through most any USB port off a computer, or the Wall Charger.
1212966
Recharges by USB. Which, ironically, is the same way it charges other things... Basically, if you have the ability to recharge it, you probably do not need it right then.
809040
Short answer is NO. The output from this unit's USB port is limited to 5V 500mA, or 2.5W. A typical laptop AC charger is around 19V 6A, or over 100W. You cannot charge a laptop through its USB port, anyway.
1278803
You shouldn't need an AC adapter, it has a cord that draws power from the USB port included. If you want to power it with a separate power source, you would need to use one that has a USB plug on it. USB is a standard 5 volt DC, although the milliamps will vary.
1657620
No, you charge it using a micro-usb either from computer or a micro-USB charger (such as you might have with your phone)
760249
I just checked the instructions that came with the unit. It states that you can charge USB devices on AC or battery power but in order to save battery life the unit will cease charging external devices if being played on a high volume setting during battery operation. Hope that helps. ;)
1601375
It does not require the use of the AC adapter, it will work without the AC adapter being plugged in. It will only work, however, as good as any non-powered USB hub, meaning, there would be a limit to the amount of power that can be used by the devices connected, some devices will require the additional power, that is the advantage of the additional AC Power source.
1762198
You can plug the the cord provided into a USB plug and then charge from there. I am also able to plug it into my laptop to charge it :)
18211
You have to make sure you use your own charger cord with your phone.... I charged the battery off my laptop with the provided USB cord but had to use my own phone charger cord (my charger has a USB/plug in the wall adapter) so changing cords was kind of a pain but recharged my phone pretty quickly
155605
the unit will charge from any usb port on a computer or from an ac usb wall charger. if you no longer have the cord purchase another to connect usb to the unit's mini port and you are back in business. I would suggest the usb wall charger be only 1 amp.
1285708
Yes and no. It does charge, but thru a usb port. If needed you can always unplug it from the usb from your computer or laptop to a wall outlet if you have an extra usb wall charger but you will not have access to your phone thru USB.
1294854
Unfortunately you cannot, the USB port is only used for charging your electronic devices. Hope that helps.