Battery-Cables-&-Accessories > Battery-Isolators

ProMariner Battery Isolators - 70 Amp

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)
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)
134.19800 134.20 I 110.81700 110.82
1 EA

ProMariner Battery Isolators - 130 Amp

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
911302 ProMariner 1-130-2, Battery Isolator, 1 Alternator/2 Batteries, 130 Amp (1 MIN) (LIMITED QUANTITY)
129.32300 129.32 I 118.45600 118.46
1 EA
911303 ProMariner 1-130-3, Battery Isolator, 1 Alternator/3 Batteries, 130 Amp (1 MIN) (LIMITED QUANTITY)
194.52800 194.53 I 172.79300 172.79
1 EA Call
Prop65 Warning