Mastervolt’s BI battery isolators are based on conventional diode technology. The diode voltage drop (ca. 0.6 V) can be compensated for by adapting the output voltage of the connected charger or alternator. Mastervolt battery chargers and Alpha Pro MB charge regulators come as standard with automatic voltage drop compensation.
The Mastervolt BI battery isolators are compact and fully solid state, preventing wear. The weight varies from 580 to 1300 grams.
Completely corrosion-proof material with aluminium heat sinks. The electronic components are encased in synthetic materials, the BI models have molded diode splitters.
The composite end plates feature connection lugs and solid bolt connections with nuts and locking rings to ensure easy installation.
|Number of battery outlets||3|
207 x 140 x 80 mm
8.1 x 5.5 x 3.1 inch
|Max. output battery charger||50 A|
|Max. output alternator||70 A|
Mastervolt EC Declaration of Conformity for Battery Isolator, Battery Mate and Battery Watch
Users Manual Battery Isolator BI702, BI702S, BI703, BI1202, BI1202S, BI1203, BI1203S