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

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

$315.99 USD
$420.95 USD $315.99 USD
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Description

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

Q: What is the ProMariner Battery Isolator - 130 AMP - 2 Alternator - 3 Battery (Model 12133)?
A: A marine‑grade 130 Amp battery isolator that lets two alternators charge three separate battery banks while keeping them electrically isolated, preventing one battery from discharging into another.

Q: What is its main purpose?
A: It isolates and distributes alternator charging current to multiple batteries — supporting two alternators and three batteries — while protecting starter and house banks from cross‑discharge.

Q: What key feature improves efficiency?
A: Gold‑plated terminals and an efficient diode‑based design improve charge delivery and corrosion resistance in demanding marine environments.

Q: What systems is it compatible with?
A: Works with DC charging systems rated from about 10 A to 130 A and fits marine electrical setups with multiple alternators and battery banks. 

Q: Why choose this ProMariner isolator?
A: It enhances charging reliability and battery health in complex marine DC systems, making it ideal for boats with multiple alternators and battery banks needing efficient and safe power distribution.


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.
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