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12V 140A Voltage Isolator Split Charge VSR Voltage Sensitive Relay Dual Battery Description Specifications：High Quality 12V 140A Split Charge VSR.The Voltage Sensitive Relay (VSR) allows two batteries to be charged at the same time. When the engine is started and the start battery reaches 13.3 volts, the VSR engages, allowing two battery banks (start and house) to be charged simultaneously.When the voltage drops below 12.8 volts (eg the engine is stopped), the VSR disengages, separating the ba...

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