This Voltage Sensitive Relay allows charging of the 24V trolling motor battery bank off the 12V engine charging system. The 12V start battery is first charged to 13.7V then the relay closes and charges each 12V battery in the 24V bank individually, back and forth, for one minute each until both batteries are brought up to 13.7V. When the engine is stopped and the voltage drops to 12.8V the relay opens and isolates the start bank from the trolling bank. Every time the boat is run, the trolling motor batteries will be charged. Rated at 70A the unit is compatible with all outboard engines. Includes wire leads. 4"L x 4"W x 3-3/4"D.

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