Voltage Sensitive Relays
Voltage Sensitive Relay (VSR) module for simultaneous dual battery charging (start and auxiliary). Engages when the engine is started and the start battery reaches 13.7 volts and disengages when the voltage drops below 12.8 volts. Eliminates the possibility of draining the start battery and protects sensitive electronic equipment powered by the auxiliary battery from harmful engine start-up spikes.
