I’m a newbie to the electric imp world. I’m building a fairly simple project where the imp is going turn LED lights on/off via wifi (mobile/web browser). What options do I have to power the imp (cr2032, Lithium, etc)?
Battery life all depends on the load (LED, other devices), the WiFi enabled, or the Imp in sleep, how long it wakes, how often it accesses the cloud, etc.
All you can do is experiment and see what happens.
I usually just use a cell phone charger with the USB cable (just for the 5VDC power).
It has to be plugged in, but so what. The Imp is in my home within my WiFi area.
I also use the cell phone charger or USB charger as electrical plugs for power supply.