Pay in 4 interest-free payments of $27.02 Learn more
Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
"Digitally fused" over current protection circuits
and other debris from the hard surfaces on your boat
Slides easily into place
Stay informed
Mastervolt BI 1203-S Isolator Boat Lightning "Digitally fused" over current protectionBI 1203 S Isolator Onboard systems usually consist of two or more batteries that function independently when powering the 12 or 24V consumers. These batteries require independent charging with reliable battery isolators or battery combiners. Mastervolt offers several intelligent solutions: Battery isolators that divide your charge current with a minimum energy loss. The Charge Mate for connecting and or disconnecting two batteries. Battery Watch for