Meet the Mastervolt Battery Mate 1603IG Battery Isolator — the intelligent, multi-battery charging solution built for 12V and 24V systems. This electronic isolator uses MOSFET technology to compensate for voltage drop, delivering charging voltage to every battery bank even when you have two or three banks connected. It ensures fast, reliable charging with negligible loss, so your batteries reach full voltage quickly and stay energized when you need them most.

Designed for fast installation and broad compatibility, the Battery Mate works with any alternator or battery charger, in both existing and new systems. Say goodbye to tweaking alternator voltage or juggling different brands—the 1603IG maintains the right charging voltage across all banks, delivering a high-yield charge without compromising performance.

• Three battery outlets to support two or three independent battery banks without compromise.
• Minimal voltage drop thanks to electronic MOSFET technology, ensuring proper charging voltage for all connected batteries.
• Universal compatibility with any alternator or charger, ideal for mixed-brand setups or systems where charge voltage cannot be adjusted.
• LED power indicator clearly shows when the input power is active for quick status checks and safety.
• Rugged, corrosion-proof construction with aluminum heat sinks and synthetic end plates, built to endure marine and vehicle environments.
• Easy, secure installation with solid bolt connections, lugs, nuts, and locking rings for a dependable mount.
• High-performance charging maxes out at 120 A from the battery charger and 160 A from the alternator, delivering ample current to each bank.

Specifications

• Number of battery outlets: 3
• Dimensions (HxWxD): 8.1 x 5.5 x 3.1 inches
• Weight: 2.2 lb
• Max output (battery charger): 120 A
• Max output (alternator): 160 A