Unlock zero-voltage-drop battery isolation with the Mastervolt Battery Mate 2503 IG Battery Isolator 250A 3-Bank (83125035) from Nomadic Supply Company®. Unlike traditional diode isolators, the Battery Mate 2503 IG uses intelligent galvanic (IG) FET transistor technology to combine and isolate up to three battery banks with effectively zero voltage drop. This ensures your batteries always receive the full alternator output voltage — resulting in faster, more complete charging and longer battery life on demanding marine, RV, and commercial vehicle applications.
Mastervolt Battery Mate 2503 IG Battery Isolator 250A 3-Bank (83125035) Features:
- Intelligent Galvanic (IG) FET Technology. Uses field-effect transistors instead of diodes, delivering virtually zero voltage drop across all three banks.
- 250A Continuous Rating. Handles very high output alternators and demanding multi-bank systems up to 250 amps.
- 3-Bank Simultaneous Charging. Charges all three connected battery banks simultaneously without voltage penalty.
- Full Charging Voltage Preserved. Zero voltage drop means batteries always receive the full alternator regulation voltage, maximizing charge state.
- Compact, Lightweight. High-tech FET design is more compact and lighter than comparable diode isolators at this current rating.
- Automatic Isolation. Automatically disconnects banks when charging stops, preventing any cross-discharge between banks.
Mastervolt Battery Mate 2503 IG Battery Isolator 250A 3-Bank (83125035) Specifications:
- Max Charging Current: 250A
- Number of Banks: 3
- Isolation Technology: Intelligent Galvanic (IG) FET
- Voltage Drop: Near zero
- System Voltage: 12V / 24V
- Weight: 2.20 lbs (1.0 kg)
- SKU / MPN: 83125035
