Does the switch on the back need to be on or off in order to charge?
458318
In my experience it has to be off. I turn the front button off then the back one for best results as I've had the speaker quit when I didn't turn the front off first after recharging.
1399987
There is an on/off switch. Is it in the on position? Otherwise might be a bad unit (assuming you know the USB port is good).
1238998
The switch is on the inside. It was a long time ago but I seem to recall that it took a little while for it to charge fully. If it it hasn't charged in two days being in direct sunlight then they may be defective
1570668
It doesn't have an automatic power on/off for sure. The normal power switch that's in that back doesn't really need to be switched off when not in use, no but if you do turn it off it won't be a problem.
1108150
A light will be on while it is charging, and then turn off when it is done charging.
958697
Yes it can be charged that way, though you must unplug immediately once charged because it will overcharge using that method. No, it does not have an on off switch nor a charging indicator...
1627248
It has a on/off button on the back so you can make it start or stop charging whenever you want to.
963767
The unit does not need to be turned on. When plugged into a device it comes on automatic. You can charge it any time. I wait until its depleted an than charge it.
2103849
There isn't any on/off button but you don't need one. It seems to stay charged a long time (weeks).
1215000
I only know that i need to charge it when it stops playing music, but it can be in the on or off position to charge, i prefer the off position though because it charges faster. there is no indicator for it charging however.
1617716
the light should flash on and off while charging I am pretty sure. I did use a powered usb hub to charge mine.
2015731
There is no switch on the back. I do not know if it has an internal auto-power select capability.
628838
yes. The screen goes blank to save energy I believe. Simply tap the On switch to check the status of the charge.
621296
No-It appears to work by an automatic switch. When plugged in battiers off-[unless you have rechargeable batteries-then they are charging]-other wise the regular batteries are bypassed when it is plugged in. Michael Barnes
2221131
Yes it does. When you disconnect the charging unit you can operate the on off switch but it will only work when the charge panel is disconnected. Prior to installing mine I used it as a flash light when walking outside on my farm at night. It is very bright in anyone's face. It will stay on as long as there is motion. If it turns off just move it around and it lights back on again no need to use the switch.
1789963
Depends on what you mean by this. If the charger is supposed to be the controlling device, it will probably not draw enough current even in charging mode to switch off the controlled outlets of the strip. If you mean that a charger is one of the controlled loads, then it will be turned off whenever the controlling device turns off. For example, my controlling device is a computer. When I put that computer into sleep mode, all subsidiary loads including my monitor and a USB hub power puck also go off.
2192556
I do not know the answer to your question. However I have never turned the switch off and have never had a problem with the charge on the keyboard.