This device will automatically isolate your 12V battery when its voltage gets low to protect it from further discharge. It has low power consumption when monitoring, and by switching its own power off upon low voltage detection, zero current draw once tripped to avoid further discharging your battery. 

An onboard LED indicates whether the 12V battery is enabled (on) or disabled (off). The reset input will re-enable the battery for 10 seconds when pressed.

The device is simply spliced into the positive wire from your battery, typically using 6mm ring terminals. There are also two spade plug connections to ground and reset via (momentary switch to ground). 

Note: Due to the one-way nature of the switch, this device can only block discharge current. Charge current will not be stopped, even if the low voltage threshold has tripped.
 
Voltage range: 8-20VDC 
 Power consumption: 5mA when active, 0mA when tripped 
 Current rating: 50A continuous, 100A intermittent 
 On-resistance: 1mohm 
 Dimensions: 71x42x18mm 
 Weight: 35g