Does my laptop have to be on to charge the battery in wrist phone?
841722
Yes. It needs to be on in order to charge any device could be in sleep mode if you want.
117975
If I remember correctly, the battery had a partial charge when received. However, we followed the instructions and charged it for several hours before trying to run the laptop on battery power.
628838
yes. The screen goes blank to save energy I believe. Simply tap the On switch to check the status of the charge.
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.
2267831
No does not have to be on the computer, but it has to be plugged in. You do everything from your phone.
1227081
No, but a USB cable is included which can be connected to a computer/laptop to recharge the battery.
535853
Most likely no. I believe other comments have the voltage and amperage noted for this device - more than likely, this is lower than your phones charger. If you were to plug the phone in, it would be recognized by the computer and will retain its battery status (IE most likely would not lose battery, and would show it as charging) but would more than likely charge very slowly or not at all.
1587411
I charge mine on the wall socket with a plug-in that accepts USB. Even though it doesn't recognize on your computer, you should see a lightening bolt where the battery is to indicate whether it is charging.
1878641
I would say no but I am not sure it probably has to be reset turn it off and on when battery is charged
2197899
Yes. I purchased an Anker battery for backup and it charged in a couple of hours out of the package using the dedicated back slot. I haven't had to use it in the ten weeks I've had the N2 and just leave it set loosely in the slot, ready to top up if necessary. I'm not typically a very heavy user and the device battery charges quickly in the USB station.
1212440
Yes. Just make sure that you keep the battery on a charger when not in use.
58501
Yes. at times I'll charge my remote off my laptop. I just use a standard mini USB cable.
1574622
As far as i can tell, the battery is always charging till its full but you have to have a battery in the laptop or its not gonna turn on.
512467
yes, the battery is required when connected to the computer. Just tested it to make sure.
199941
Yes. Just confirmed on my own device. Charging phone while plugged into laptop. Both phone and Lumsing are showing charge indication.
1013895
No. It has a built in battery that is charged via a USB cable that is included.
1652310
You don't need the power if your Surface is fully charged. You will need the power only if you ran out of battery (when it comes below 5%).