If the battery status light flashes orange or is a steady orange the battery charge is low or depleted. Connect the computer to an electrical outlet.
 
If the battery status light flashes green and orange, the battery is too warm to charge. Shut down the computer, disconnect the computer from the electrical outlet, and then let the battery and computer cool to room temperature.
 
If the battery status light rapidly flashes orange, the battery may be defective. Contact Dell.