Blue Sea Systems Solenoid Add A Battery 120A Blue Sea

Kit comprising a 120 A automatic charging relay and a 300 A double battery isolator. Very simple to install and use, it effectively manages the switching and charging of two batteries from a single charging source.
The 12/24 V charging relay:
Temporarily isolates the service battery while the engine is starting
-Automatically couples the 2 sets of batteries when the first battery reaches the programmed value (factory setting: high voltage)
-Isolates the 2 sets of batteries when their voltage has reached the programmed low voltage (factory setting: low voltage)
-IP67 waterproofing
The 350 A dual 3-position battery isolator allows 2 sets of batteries to be coupled simultaneously with a simple Off - On - Combined switch.