Protect and optimize your onboard power with marine battery isolators built for dependable energy management. This collection includes high-performance isolators that allow multiple battery banks to charge simultaneously from a single power source—while keeping them electrically isolated to prevent backflow and discharge. Perfect for dual battery setups, house and starter bank separation, or auxiliary power systems, these isolators ensure your critical circuits stay powered when you need them most. Designed for the marine environment with corrosion-resistant materials and robust construction, they're a smart upgrade for safer, more efficient power distribution on board.
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Vendor:ARCO Marine
ARCO Marine BI-1603 Battery Isolator - 160A - 1 Alternator, 3 Battery [BI-1603]
Regular price $221.95 USDRegular price$315.14 USD-$93.19 USD Sale price $221.95 USD -
Vendor:ARCO Marine
ARCO Marine BI-1203-3A Battery Isolator - 120A - 1 Alternator, 3 Battery [BI-1203-3A]
Regular price $173.95 USDRegular price$256.55 USD-$82.60 USD Sale price $173.95 USD -
Vendor:ARCO Marine
ARCO Marine BI-0702-4 Battery Isolator - 70A - 1 Alternator, 2 Battery [BI-0702-4]
Regular price $71.95 USDRegular price$108.80 USD-$36.85 USD Sale price $71.95 USD -
Vendor:Victron Energy
Victron Argodiode Battery Isolator 80-2AC - 2 Batteries - 80A [ARG080201000]
Regular price $50.15 USDRegular price$59.00 USD-$8.85 USD Sale price $50.15 USD -
Vendor:Victron Energy
Victron Argodiode Battery Isolator 180-3AC - 3 Batteries - 180A [ARG180301020]
Regular price $109.65 USDRegular price$129.00 USD-$19.35 USD Sale price $109.65 USD -
Vendor:Victron Energy
Victron Argodiode Battery Isolator 80-2SC - 2 Batteries - 80A [ARG080202000]
Regular price $39.10 USDRegular price$46.00 USD-$6.90 USD Sale price $39.10 USD -
Vendor:Victron Energy
Victron Argodiode Battery Isolator 140-3AC - 3 Batteries - 140A [ARG140301020R]
Regular price $95.20 USDRegular price$112.00 USD-$16.80 USD Sale price $95.20 USD -
Vendor:Newmar Power
Newmar 1-3-70 Battery Isolator [1-3-70]
Regular price $204.95 USDRegular price$274.68 USD-$69.73 USD Sale price $204.95 USD -
Vendor:Newmar Power
Newmar 2-3-120 Battery Isolator [2-3-120]
Regular price $471.95 USDRegular price$634.05 USD-$162.10 USD Sale price $471.95 USD -
Vendor:Newmar Power
Newmar 1-2-120 Battery Isolator [1-2-120]
Regular price $187.95 USDRegular price$247.21 USD-$59.26 USD Sale price $187.95 USD -
Vendor:Newmar Power
Newmar 2-3-70 Battery Isolator [2-3-70]
Regular price $275.95 USDRegular price$354.80 USD-$78.85 USD Sale price $275.95 USD -
Vendor:ProMariner
ProMariner Battery Isolator - 130 AMP - 1 Alternator - 3 Battery [11133]
Regular price $176.95 USDRegular price$322.99 USD-$146.04 USD Sale price $176.95 USD -
Vendor:ProMariner
ProMariner Battery Isolator - 130 AMP - 2 Alternator - 2 Battery [12132]
Regular price $278.95 USDRegular price$510.99 USD-$232.04 USD Sale price $278.95 USD -
Vendor:ProMariner
ProMariner Battery Isolator - 2 Alternator - 2 Battery - 70 AMP [12072]
Regular price $167.95 USDRegular price$306.99 USD-$139.04 USD Sale price $167.95 USD -
Vendor:Victron Energy
Victron Galvanic Isolator VDI-16A, 16 AMP Max Waterproof Potted [GDI000016000]
Regular price $109.65 USDRegular price$129.00 USD-$19.35 USD Sale price $109.65 USD -
Vendor:Victron Energy
Victron Argofet Battery Isolator 100-3 3 Batteries - 100AMP [ARG100301020R]
Regular price $114.75 USDRegular price$135.00 USD-$20.25 USD Sale price $114.75 USD