Battery-Cables-&-Accessories > Battery-Isolators

ProMariner Multi Battery Isolators - 70 Amp

ProMariner Multi Battery Isolators with gold-plated terminals and improved efficiency, provide enhanced charging and gives peace of mind by preventing total discharge of the starter battery. These are designed as solid-state devices which allow electrical current to flow in one direction only. They efficiently utilize the energy produced by the alternators and distribute the power evenly to each battery. The isolators allow the batteries to charge together but isolate each battery during operation. They allow one or two alternators to be connected to multiple battery banks without fear of fully charged batteries discharging into undercharged batteries. Please note that these products are meant to be used with negative ground alternator systems, and are not recommended for use with self-energizing style alternators.


  • Rated for use with negative ground alternator systems ranging from 70 amps to 130 amps output
  • Will operate on 6, 12, 24, 32, and 36 volt systems
  • Charge Multiple Batteries While Preventing Interbank Discharge
  • Easy to Install Diode-Based Design. Ground Wire Not Required
  • Insulator Boots for Each Terminal to Prevent Short Circuits
  • Improved Heat Sink Design. Corrosion Resistant
  • Mount in a well-ventilated location as near to the alternator as possible
  • Do not mount on an engine or in proximity to an exhaust manifold
  • IP67 Rated; ROHS, CE, Prop65 and ABYC E-11 compliant
  • Download sell sheet here.
    Download installation manual here.

Item Description Price Qty in
Package
In Stock Add to Cart
911072 ProMariner 11072, Battery Isolator, 1 Alternator/2 Batteries, 70 Amp (1 MIN) drawing 139.95 1 EA
911073 ProMariner 11073, Battery Isolator, 1 Alternator/3 Batteries, 70 Amp (1 MIN) drawing 174.95 1 EA
912072 ProMariner 12072, Battery Isolator, 2 Alternator/2 Batteries, 70 Amp (1 MIN) drawing 239.95 1 EA
912073 ProMariner 12073, Battery Isolator, 2 Alternator/3 Batteries, 70 amp (1 MIN) drawing 299.95 1 EA

ProMariner Multi Battery Isolators - 130 Amp

ProMariner Multi Battery Isolators with gold-plated terminals and improved efficiency, provide enhanced charging and gives peace of mind by preventing total discharge of the starter battery. These are designed as solid-state devices which allow electrical current to flow in one direction only. They efficiently utilize the energy produced by the alternators and distribute the power evenly to each battery. The isolators allow the batteries to charge together but isolate each battery during operation. They allow one or two alternators to be connected to multiple battery banks without fear of fully charged batteries discharging into undercharged batteries. Please note that these products are meant to be used with negative ground alternator systems, and are not recommended for use with self-energizing style alternators.


  • Rated for use with negative ground alternator systems ranging from 70 amps to 130 amps output
  • Will operate on 6, 12, 24, 32, and 36 volt systems
  • Charge Multiple Batteries While Preventing Interbank Discharge
  • Easy to Install Diode-Based Design. Ground Wire Not Required
  • Insulator Boots for Each Terminal to Prevent Short Circuits
  • Improved Heat Sink Design. Corrosion Resistant
  • Mount in a well-ventilated location as near to the alternator as possible
  • Do not mount on an engine or in proximity to an exhaust manifold
  • IP67 Rated; ROHS, CE, Prop65 and ABYC E-11 compliant
  • Download sell sheet here.
    Download installation manual here.

Item Description Price Qty in
Package
In Stock Add to Cart
911132 ProMariner 11132, Battery Isolator, 1 Alternator/2 Batteries, 130 Amp (1 MIN) drawing 194.95 1 EA
911133 ProMariner 11133, Battery Isolator, 1 Alternator/3 Batteries, 130 amp (1 MIN) drawing 254.95 1 EA
912132 ProMariner 12132, Battery Isolator, 2 Alternator/2 Batteries, 130 amp (1 MIN) drawing 399.95 1 EA
912133 ProMariner 12133, Battery Isolator, 2 Alternator/3 Batteries, 130 Amp (1 MIN) drawing 579.95 1 EA

ProMariner Multi Battery Isolators - Limited Quantity

ProMariner Battery Isolators are solid-state devices which allow electrical current to flow in one direction only. They efficiently utilize the energy produced by the alternators and distribute the power evenly to each battery. The isolators allows the batteries to charge together but isolate each battery during operation. They allow one or two alternators to be connected to multiple battery banks without fear of fully charged batteries discharging into undercharged batteries. Please note that these products are meant to be used with negative ground alternator systems, and are not recommended for use with self energizing style alternators.


  • Rated for use with negative ground alternator systems ranging from 10 amps to 130 amps output
  • Will operate on 6, 12, 24, 32, and 36 volt systems
  • Mount in a well-ventilated location as near to the alternator as possible
  • Do not mount on an engine or in proximity to an exhaust manifold
Item Description Price
1+ I Ext. Price I 5+ Ext. Price I
Qty in
Package
In Stock Add to Cart
901702 ProMariner 01-70-2, Battery Isolator, 1 Alternator/2 Batteries, 70 Amp (1 MIN) (LIMITED QUANTITY) Sale Price: 48.15317
104.40 104.40 I 88.64800 88.65
1 EA
901703 ProMariner 01-70-3, Battery Isolator, 1 Alternator/3 Batteries, 70 Amp (1 MIN) (LIMITED QUANTITY) Sale Price: 62.42077
134.19800 134.20 I 110.81700 110.82
1 EA
Prop65 Warning