How much current does the device draw at idle while not charging USB device? On a boat, the idle current is a factor for decisions.
1057436
According to the Data Sheet, the energy consumed when USBs are not in use per hour: No Load Current .0013A No load Watts .63W
960902
Do You know how many amps consumes each of your devices? Each USB port of the charger has a specific load. Surely it will charge all your devices. But you need to give me the individual amps for me to tell you if all charge together and best.
423988
Remember, this is a 4 amp unit. That means that any single device which needs less than 4A to charge, will be charged.... as long as that is the only device attached. If you have other devices attached, they will be drawing some current, usually up to 900 mA for a USB3 device... sooo something like an iPad may not be able to draw enough current. Most other devices should be ok.
1551456
The real answer: Nothing to worry about if the current draw of the device is less than the maximum output of the battery. However, if the current draw of the device is GREATER than the battery's maximum output current, you will possibly experience the battery overheating and/or experience a thermal runaway.
1335004
Okay, so I have a powered usb hub, but my computer must be on for this to work. So... I tried out my iPad wall charger - -worked, but fan got a bit noisy so I did some investigating. A normal computer USB puts out much less current than an iPad adapter. The iPhone adapter is closer to the computer output and should be okay. Since there is no way for the fan to regulate how much current is being fed to it, it could possibly burn out with the higher amperage (I am guessing). The iPhone charger is much less and more than adequate for this fan, since it does run well on the USB port alone. Best use - connect to computer. Second best, a phone charger that is close to the rating on the USB port. Okay, so I have a powered usb hub, but my computer must be on for this to work. So... I tried out my iPad wall charger - -worked, but fan got a bit noisy so I did some investigating. A normal computer USB puts out much less current than an iPad adapter. The iPhone adapter is closer to the computer output and should be okay. Since there is no way for the fan to regulate how much current is being fed to it, it could possibly burn out with the higher amperage (I am guessing). The iPhone charger is much less and more than adequate for this fan, since it does run well on the USB port alone. Best... » Read More Okay, so I have a powered usb hub, but my computer must be on for this to work. So... I tried out my iPad wall charger - -worked, but fan got a bit noisy so I did some investigating. A normal computer USB puts out much less current than an iPad adapter. The iPhone adapter is closer to the computer output and should be okay. Since there is no way for the fan to regulate how much current is being fed to it, it could possibly burn out with the higher amperage (I am guessing). The iPhone charger is much less and more than adequate for this fan, since it does run well on the USB port alone. Best use - connect to computer. Second best, a phone charger that is close to the rating on the USB port. « Show Less
988950
I do not know. I plug in my iPhone or MP3 player when on the boat. It's a great unit for the price. Sorry I didn't have the answer.
988951
I do not know. I plug in my iPhone or MP3 player when on the boat. It's a great unit for the price.Sorry I didn't have the answer.
2218235
This is almost the exact application for which I am using my DROK voltage indicator. YES. A fully charged battery will read approx. 12.7 volts on your boat's wet cell battery. Different instruments/devices require different voltages, so there is no real point at which you can expect things to "stop working," but yes, the voltage will drop as the battery is drained down.
402078
As I found similarly with the design of their car adapter, which showed negligible draw on the car battery when plugged in by itself, testing this charger also exhibited no significant power draw on the AC line when not actively charging.Because it doesn't even use an LED indicator to display that it's on, which almost every other device in the world uses, it's quite efficient and can be simply be left plugged in without any concern for wasting energy.
2135459
"Wattage" is normally shown as "Max" wattage when in operation. If this product is listed as .8 watts (120vac x .067ma) then the "idle" current should be significantly less, probably about .020 amps/20ma or 120*.02= 2.4 watts. It could easily be less, depending on the circuit design. When the lights are not on, the unit is 1)determining if it is light or dark (dusk to dawn sensing) and 2)if there is "motion" in the vicinity. The energy used during this "idle" process is extremely low.
825544
Not sure what you mean by idle current, but when the solenoid is activated, it takes less than 1amp to energize the coil.
1403023
The device has its own power cord. I do not think it is designed to draw power from USB but only to power the USBs in the device itself. Thus the power cord.
1378035
I like the Sunforce for my boat as its display indicates charging current and voltage. Most units do not provide this indication.
1648453
I can't answer your question now. But I do have a device that you plug things into and it tells you how much electricity it is drawing. I can try the charger with or without devices charging and let you know. But I really do like the charger and it has simplified our lives. When my wife understands how to use it, I know it is good!
2273955
I'm sorry but I don't know. I haven't left it plugged in all the time because it uses up one of my usb ports.
662392
will charge about 1 iphone full HP... (when iphone is idling without using, around 80% if using simultaneously)
310972
If the Rav is plugged into a power supply it is "on", and will charge a device with the appropriate receiver. When the device is charged, the Rav will still be on, but will cease charging the device. When the Rav is unplugged, drawing from its internal battery to charge your device, you need to turn it "on". Once on, it will remain on until your device is charged, it will turn off when your device is fully charged. It will also turn off after some set duration (I believe about 2 min) when there is no "draw" on the battery, so you can't waste its battery accidentally. I've been very happy with mine. If the Rav is plugged into a power supply it is "on", and will charge a device with the appropriate receiver. When the device is charged, the Rav will still be on, but will cease charging the device. When the Rav is unplugged, drawing from its internal battery to charge your device, you need to turn it "on". Once on, it will remain on until your device is charged, it will turn off when your device is fully charged. It will also turn off after some set duration (I believe about 2 min) when there is no "draw" on the battery, so you can't waste its battery... » Read More If the Rav is plugged into a power supply it is "on", and will charge a device with the appropriate receiver. When the device is charged, the Rav will still be on, but will cease charging the device. When the Rav is unplugged, drawing from its internal battery to charge your device, you need to turn it "on". Once on, it will remain on until your device is charged, it will turn off when your device is fully charged. It will also turn off after some set duration (I believe about 2 min) when there is no "draw" on the battery, so you can't waste its battery accidentally. I've been very happy with mine. « Show Less