> Andre Abelian wrote: > > > I am working on charger for car and I am stock I need to determine when > > the battery is connected or disconnected any idea will highly appreciated. If the charger is on all the time, then you will need to measure the current flow from the charger, which will occur only when the battery is connected. -- Best regards Tony Multimedia 16F84 Beginners PIC Tools. http://www.picnpoke.com Email picnpoke@cdi.com.au