The Electroparts BP-400 and 500 battery protectors senses the voltage of the battery, when the battery reaches the off voltage set point, the Electroparts battery protector automatically disconnects the load from that battery. This protects the battery from over discharge, which results in damage to your battery. Electroparts battery protectors can be found in many caravan models available today.
· Protects batteries from overly discharging
· Fully automatic
· Remote switching option
· Switch selectable cut-off voltage
· Voltage 12V
· Rating 40A
· Dimensions 86x67x35mm