Mastervolt Battery Mate 2503 IG Isolator - 200 A, 3 Bank

The Battery Mate 2503 IG Isolator is an electronic, multi-bank battery isolator engineered to charge several batteries simultaneously in marine, RV, and auxiliary power applications. It is compatible with any type of alternator or battery charger, enabling seamless integration into both new and existing electrical systems. Its innovative MOSFET-based design delivers controlled switching and compensates for voltage variations, ensuring charging remains at the correct level across multiple banks. This unit provides negligible voltage loss between the alternator and battery compared with conventional diode isolators, delivering faster, more complete charging without manual adjustments to the alternator.

• Continuous Amperage: 200 A; 3-bank configuration for simultaneous multi-battery charging
• Input/Output topology: Input side connects to the alternator and/or battery charger; two batteries are connected to the output side
• Technology: Electronic isolation using MOSFETs for precise voltage regulation across banks
• Compatibility: Suitable for any alternator/charger and supports external excitation or voltage sensing via the IG contact
• Installation: Designed for easy DIN rail mounting (industry-standard) for quick integration
• Physical specs: Box Dimensions 4"H x 6"W x 9"L; Weight 2.8 lbs; UPC 816882021053
• Safety and compliance: Includes California Prop 65 warning about di(2-ethylhexyl)phthalate (DEHP)

Documentation and setup resources include a Quick Guide (pdf) and Owner's Manual (pdf) to assist with installation and ongoing operation. For maintenance guidance and detailed installation steps, refer to the Owner’s Manual. This product is suitable for demanding, space-constrained power systems where reliable multi-bank charging and minimal cross-bank interaction are essential.

Battery Mate 2503 IG Isolator - 200 Amp, 3 Bank

The Battery Mate is the ultimate solution for charging several batteries simultaneously and is compatible with any type of alternator/battery charger, in both existing and new systems. As the voltage loss between the alternator and battery is negligible, the Battery Mate performs far better than conventional battery isolators. This ensures fast and complete charging of your batteries without having to make additional adjustments to the alternator.

While battery isolators are conventional diode splitters, the Battery Mate's technology is electronic and includes mosfets (transistors). Its components compensate for variations in voltage and ensure that charging continues at the right voltage level, even with several battery banks. The input side on the Battery Mate is connected to the alternator and/or battery charger, while two batteries are connected to the output side. The Battery Mate is easy to install on a DIN rail (industry standard).The Mastervolt Battery Mate can be used in any application even if the standard alternator need external excitation or voltage sensing. In this case the additional IG contact can be connected.

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

Specifications:

• Continuous Amperage: 200
• Box Dimensions: 4"H x 6"W x 9"L WT: 2.8 lbs
• UPC: 816882021053