Mastervolt Battery Mate 1602 IG Isolator – 120 Amp, 2 Bank

Overview and primary applications

The Battery Mate 1602 IG Isolator is the dedicated solution for charging multiple battery banks from a single alternator or charger. It is compatible with any type of alternator or battery charger, suitable for existing installations or new builds. By preserving near-zero voltage loss between the alternator and the battery, it delivers faster, more complete charging than conventional diode-based isolators, without requiring adjustments to the charging source.

Key performance specifications

• Continuous amperage: 120 A
• Output banks: 2
• Input: connected to the alternator and/or battery charger
• Voltage regulation: electronic MOSFET-based control maintains correct charging voltage across both banks
• Mounting: DIN-rail, industry standard
• IG contact: supports external excitation or voltage sensing as needed
• Physical: 4" H x 6" W x 9" L; weight 2.5 lb
• Documentation: Quick Guide (pdf) and Owner's Manual (pdf) included

Safety features and compliance

Electronic switching using MOSFETs minimizes voltage drop and improves efficiency in multi-bank charging environments. California Proposition 65 warning applies: di(2-ethylhexyl)phthalate (DEHP) is present; for safety details, see P65Warnings.ca.gov.

Installation and maintenance

• Install on a standard DIN rail; connect input to the alternator or charger, and connect two output banks to the respective batteries
• Ensure proper gauge wiring and secure terminations; keep connections clean and dry
• Maintenance is minimal; periodic visual inspection for signs of overheating and corrosion is recommended

Documentation and support

Includes Quick Guide (pdf) and Owner's Manual (pdf) to assist with setup, operation, and troubleshooting.

Warranty and service

Warranty and service information is not provided in the current product data. Please contact the supplier for terms and available support options.

Battery Mate 1602 IG Isolator - 120 Amp, 2 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: 120
• Box Dimensions: 4"H x 6"W x 9"L WT: 2.5 lbs
• UPC: 852968002714