ProMariner Battery Isolator - 130 AMP - 2 Alternator - 3 Battery [12133] - CWR-102176

ProMariner Battery Isolator - 130 AMP - 2 Alternator - 3 Battery [12133] - CWR-102176

Battery Isolator - 2 Alternator - 3 Battery - 130 AMP

ProMariner Battery Isolators with gold-plated terminals and improved efficiency, provide enhanced charging. Rated for use with DC devices ranging from 10 amps to 130 amps.

What our Experts Think

• High‑Capacity 130 AMP Protection
  Handles dual alternator setups with ease, ensuring reliable isolation and preventing back‑feed between batteries.
• 3‑Battery Flexibility
  Supports multiple battery banks — perfect for separating start, house, and accessory circuits without power bleed.
• Enhanced Battery Life
  Isolating batteries reduces cross‑drain, helping extend battery life and improving overall system reliability.
• Marine‑Grade Reliability
  Built tough for harsh marine environments with corrosion‑resistant hardware and weather‑proof design.
• Easy Integration
  Straightforward wiring makes installation simpler for both new builds and upgrades

Q&A

Maintenance Tips

• Clean Terminals & Connections: Periodically inspect and clean gold‑plated terminals and wiring connections to prevent corrosion and ensure reliable power flow.
• Check Mounting & Ventilation: Ensure the isolator is securely mounted in a well‑ventilated location away from heat sources like exhaust manifolds to avoid overheating.
• Inspect Cables & Fuse Protection: Verify battery and alternator cable sizes match recommendations and that inline fuses are present and in good condition; replace any brittle or corroded wiring promptly.
• Watch for Heat Buildup: Because isolators handle high current, check for excessive heat or discolouration around the unit during operation — this can indicate overloaded circuits or poor connections.
• Avoid Moisture: Keep the unit dry and protected from spray or condensation; wipe any moisture off and apply light corrosion inhibitor to exposed contacts.
• Test Function Periodically: Use a multimeter to verify the isolator only allows charging current toward batteries (one‑way current flow) and isolates batteries when the engine/alternator is off.