Let me just say that you can't go wrong if you unplug it.
Now for older notebooks (before ~2006-2007), do unplug it.
For newer notebooks, it doesn't really matter.
However, just to be extra precautious, unplug it.
its fine either way, if you know your going to use it then maybe keep it plugged in, if your not using it then unplug it
Over time you will shorten the lifespan of your battery. Once it's fully charged if you don't need to use the battery just unplug it from the laptop and only work with mains power.
5 hours!! :o)
Yes it's safe to do so you just won't have a full battery.
An electrical cord is provided for just that purpose and when plugged into an electrical outlet, the battery charging light will come on. After the unit is fully charged, the Battery Fully Charged light comes on and you can unplug from electrical outlet and use anywhere you need it.
It will last about two to three hours, usually. However, some laptops can go for six, or even eight hours.
check the wires.
No, it doesn't. When it is fully charged, it just automatically stops charging. When the battery icon is full all the way, it means it done. When you realize it's done, you unplug it.
If they are good batteries fully charged when installed and connected in parellel, yes it should handle them.
Inside of the controller is a lithium-ion battery that is charged via the USB port on the front of the controller.
No, but it will work better if it is fully charged.
When it is charging the screen reads: Battery Charging. When it is fully charged it reads: Battery Charged.
A fully charged 12 volt automotive battery should have 12.68 volts.