The Install Bay IB500 500 Amp Power Relay Battery Isolator for 12 Volt
$90.95
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The Install Bay IB500 500 Amp Power Relay Battery Isolator for 12 Volt Handles 500 Amps Continuos Maximum current transfer Compatible with universal 12V Applications Durable Weatherproof Construction A must for multi battery systems Allows for longer battery life and control over which battery is being used Great for isolating second battery in boats making it dedicated only to the stereo system Keeps primary starting battery from being drained to the point of stranding you in the middle of the lake, river or ocean Does not create any voltage drop to the secondary battery Authorized Dealer
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