Victron Argo FET Battery Isolator 100-3 3 Batteries - 100AMPPower multiple battery banks from a single alternator with the Victron Argo FET Battery Isolator 100 3. This three battery isolator lets you charge three separate batteries simultaneously without tying them together, delivering reliable power for boats, RVs, and offgrid systems. Key advantages FET based isolator for near lossless power transfer, with voltage drop < 0. 02 V at low currents and about 0. 1 V at higher currents Allows simultaneous