Modern battery management with deep discharge protection - the device works even during long periods of bad weather Power saving switch for when the battery voltage fails. Additional energy-saving function when fencing status is good. Very bright, clearly visible LED light. Meets applicable EU safety standards. Function indicator LED (green) plus solar operation LED (blue) plus battery warning LED (red). NEW: with direct connection socket on device housing for battery charger - integrated battery no longer needs to be removed for charging outside the grazing season 12V/18Ah battery. 12V/25W solar panel.