Electrical - Battery Isolators

47 products


  • Sale -35% Sea-Dog Smart Dual Battery Isolator [422790-1]

    Sea-Dog Smart Dual Battery Isolator [422790-1]

    Smart Dual Battery IsolatorThis Smart Dual Battery Isolator is ideal for dual battery applications. Allows two batteries to automatically charge at the same time and then isolates the batteries, ensuring the starting battery is always charged and ready for use. Automatically engages or disengages the circuit at pre-set voltages by sensing the input voltage generated, eliminating the possibility of discharging the primary starting battery. Cut-in voltage: 13.3V. Cut-out voltage: 12.8V. Surge protected. Features an LED indicator to alert the user when the unit is engaged. Constructed of machined brass with a weatherproof injection molded nylon housing and durable silver tipped contacts. Installs with two #8 RH fasteners (included). 12VDC. 140A. IP65 rating. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.

    $85.95$55.50

  • Sale -23% Newmar 1-2-120 Battery Isolator [1-2-120]

    Newmar 1-2-120 Battery Isolator [1-2-120]

    1-2-120 Battery IsolatorThis heavy-duty isolator allows multiple batteries to charge automatically from one or two alternators and prevents the discharge or ‘dumping” of one battery into another. Each battery is charged according to its need without overcharging and is rated for 12-, 24-, or 36-volt, negative ground DC systems. This model is a 120-amp alternator.Features: Conservatively rated diodes and a rustproof anodized aluminum heat sink case Heavy duty construction Rated for systems up to 48 volts DC, negative ground Rust-proof anodized aluminum case Stainless steel mounting hardware provided Protective covers provided for terminals Specifications: Operating Temperature: -40 to +80° Duty Cycle: Continuous rating to 50° C Derate linearly to 70% @ 80° C Temp. Rise: 5° C at full rated current (mount vertically for optimum cooling) Voltage Drop: 0.7V @ 50% load, 0.9V @ full load Alternator Sources: 1 Battery Bank: 2 Max. Amperage Input Capacity: 120 Stud Terminal Size: 6mm Dimensions (L x W x H): 6.5" x 4.5" x 3.1" Weight: 3 lbs. Note: These battery isolators are not compatible with self-exciting alternators. The alternator must have an external excitation lead. Please consult the manufacturer of your alternator if you are unsure of your configuration

    $216.00$166.50

  • Sale -15% Victron Argo FET Battery Isolator 200-3 3 Batteries - 200AMP [ARG200301020]

    Victron Argo FET Battery Isolator 200-3 3 Batteries - 200AMP [ARG200301020]

    Argo FET Battery Isolator 200-3 3 Batteries - 200AMPSimilarly to diode battery isolators, FET isolators allow simultaneous charging of two or more batteries from one alternator (or a single output battery charger), without connecting the batteries together. In contrast with diode battery isolators, FET isolators have virtually no voltage loss. Voltage drop is less than 0,02 Volt at low current and averages 0,1 Volt at higher currents.Warranty InfoPlease contact your dealer for any returns, repairs or support issues related to this product. Quick Guide (pdf)Owner's Manual (pdf)Brochure (pdf)

    $165.00$140.25

  • Sale -51% ProMariner Battery Isolator - 2 Alternator - 2 Battery - 70 AMP [12072]

    ProMariner Battery Isolator - 2 Alternator - 2 Battery - 70 AMP [12072]

    Battery Isolator - 2 Alternator - 2 Battery - 70 AMPProMariner Battery Isolators with gold-plated terminals and improved efficiency, provide enhanced charging. Rated for use with DC devices ranging from 10 amps to 70 amps. Owner's Manual (pdf)

    $275.99$134.50

  • Sale -46% ProMariner ProIsoCharge Battery Isolator 130Amp 2-Alt 4-Bat - 12V [23127]

    ProMariner ProIsoCharge Battery Isolator 130Amp 2-Alt 4-Bat - 12V [23127]

    ProIsoCharge SeriesModel ProIsoCharge130 2•4 Part No. 23127 System Volts DC 12Max DC Amps 130 AmpAlternator Input2Battery Outputs 4Size12.05"(l) x 5.875"(w) x 3.125"(h) Weight7 lbsSignificantly Smarter...ProIsoCharge delivers digitally controlled alternator output distribution while protecting the health of engine start batteries. An industry changing design that provides intelligent and zero voltage loss isolation, charging of up to 3 other battery banks off a single alternator (model specific). For dual engine applications, ProIsoCharge offers an exclusive 2 alternator input model with up to 4 battery banks. Smart enough to provide priority charging to a battery bank that's under load by taking fully charged batteries off line. The all-in-one design eliminates the need for multiple voltage sensitive relays to charge multiple battery banks simultaneously, saving space, installation time and cost. Ensuring fully charged batteries and faster charge times, ProIsocharge eliminates the typical alternator voltage loss of 0.6VDC that's commonly associated with traditional diode based isolators. Installed with the ProNauticP Series, a boat owner can enjoy the full benefit of shore power and on the water charging. Designed to provide more time on the water enjoying what you like most... boating.Intelligent Alternator Power Distribution SystemProMar Digital Performance Zero Volt Loss Isolation and ChargingAll digital design delivers active battery status and automatic engine battery healthpriority while digitally distributing the full output of your engine's alternators.Intelligent Isolation and Charging Software ControlProIsoCharge's intelligent software control provides priority charging to a battery bank thatis under load (i.e house bank or power inverter bank) by taking fully charged batteries off lineand priority charging discharged battery banks, while insuring the health of the engine batteries.Real Time LED Status IndicatorsHighly visible LEDs to indicate alternator power is present and battery bank charging status.Fault LEDs include: high and low alternator output, over-voltage protection and high voltageconditions that may be present on any one of the battery banks connected (that are alsoconnected to other charging sources gen set combi etc).Ignition ControlledDistributed On Demand™ battery bank management will only activatewith ignition power on.Advance Regulator ReadyAdvance regulator remote sense connection provided for precision alternatoralgorithm control for alternators equipped with an advanced regulator.Easy InstallationModular design for easy install. Includes all terminal stud insulator bootsand protective snap on safety cover.Built-in SafetyIgnition protected and waterproof to IP66. FIVE YEARWARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov. Quick Guide (pdf)Owner's Manual (pdf)

    $444.99$239.50

  • Sale -23% Newmar 1-3-70 Battery Isolator [1-3-70]

    Newmar 1-3-70 Battery Isolator [1-3-70]

    1-3-70 Battery IsolatorThis heavy-duty isolator allows charging multiple batteries automatically from one or two alternators and prevents the discharge or ‘dumping” of one battery into another. Each battery is charged according to its need without overcharging and is rated for 12-, 24-, or 36-volt negative ground DC systems. Features: Conservatively rated diodes and a rustproof anodized aluminum heat sink case. Heavy-duty construction Rated for systems up to 48 volts DC, negative ground Rust-proof anodized aluminum case Stainless steel mounting hardware is provided Protective covers are provided for terminals Specifications: Alternator Sources: 1 Battery Bank: 3     Max. Amperage Input Capacity: 70 Stud Terminal Size: 6mm     Dimensions (L x W x H): 3.25 x 4.5 x 3.1 inches Weight: 2 lbs. Operating Temperature: -40 to +80 degrees Duty Cycle: Continuous rating to 50 degrees C Derate linearly to 70% @ 80 degrees C. Temp. Rise: 5 degrees C at full rated current (mount vertically for optimum cooling) Voltage Drop: 0.7V @ 50% load, 0.9V @ full load *Note: These battery isolators are not compatible with self-exciting alternators. The alternator must have an external excitation lead. Please consult the manufacturer of your alternator if you are unsure of your configurationThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Quick Guide (pdf)

    $240.00$185.50

  • Sale -37% Newmar GI-60-FS Galvanic Isolator 60A Fail Safe [GI-60-FS]

    Newmar GI-60-FS Galvanic Isolator 60A Fail Safe [GI-60-FS]

    GI-60-FS Galvanic Isolator 60A Fail SafeInstalling the Galvanic Isolator between the AC safety ground and DC bonding system blocks most of the low-voltage currents and corrosive action seen on the vital metallic components in the saltwater. With the low voltage current blocked, the galvanic corrosion effect on the sacrificial anodes is significantly reduced, while the integrity of the critical safety ground path is maintained. This means a significant saving in boat haul-out fees and zinc replacement costs. For additional safety, all units feature a large capacitor, providing a secondary low-impedance path for sending AC current to the ground.Newmar’s latest galvanic isolator meets the latest ABYC A-28 2019 requirements, including being a failsafe. This design can meet the strictest temperature and current tests to create a robust solution for galvanic protection.Features: Protects against corrosion Maintains a safe environment Certified to the UL1500 standard for Ignition Protection Tested to a 50 degrees C ambient temperature The 60A fail-safe feature ensures ground maintenance Connection in the event of isolator failure Specifications: Shore Power Voltage: 115–230V    Maximum Short Circuit: 5000 Amps Stray Current Protection: Up to 1.4 VDC Dimensions (LxWxH): 260 x 190 x 65 mm This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Quick Guide (pdf)

    $559.50$351.50

  • Sale -24% Newmar 2-3-70 Battery Isolator [2-3-70]

    Newmar 2-3-70 Battery Isolator [2-3-70]

    2-3-70 Battery IsolatorThis heavy-duty isolator allows charging multiple batteries automatically from one or two alternators and prevents the discharge or ‘dumping” of one battery into another. Each battery is charged according to its need without overcharging and is rated for 12-, 24-, or 36-volt negative ground DC systems. Features: Conservatively rated diodes and a rustproof anodized aluminum heat sink case. Heavy-duty construction Rated for systems up to 48 volts DC, negative ground Rust-proof anodized aluminum case Stainless steel mounting hardware is provided Protective covers are provided for terminals Specifications: Alternator Sources: 2 Battery Bank: 3     Max. Amperage Input Capacity: 70 Stud Terminal Size: 6mm     Dimensions (L x W x H): 6.5 x 4.5 x 3.1 inches Weight: 4 lbs. Operating Temperature: -40 to +80 degrees Duty Cycle: Continuous rating to 50 degrees C Derate linearly to 70% @ 80 degrees C. Temp. Rise: 5 degrees C at full rated current (mount vertically for optimum cooling) Voltage Drop: 0.7V @ 50% load, 0.9V @ full load *Note: These battery isolators are not compatible with self-exciting alternators. The alternator must have an external excitation lead. Please consult the manufacturer of your alternator if you are unsure of your configurationThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Quick Guide (pdf)

    $310.00$235.50

  • Sale -40% Newmar GI-30-FS Galvanic Isolator 30A Fail Safe [GI-30-FS]

    Newmar GI-30-FS Galvanic Isolator 30A Fail Safe [GI-30-FS]

    GI-30-FS Galvanic Isolator 30A Fail SafeInstalling the Galvanic Isolator between the AC safety ground and DC bonding system blocks most of the low-voltage currents and corrosive action seen on the vital metallic components in the saltwater. With the low voltage current blocked, the galvanic corrosion effect on the sacrificial anodes is significantly reduced, while the integrity of the critical safety ground path is maintained. This means a significant saving in boat haul-out fees and zinc replacement costs. For additional safety, all units feature a large capacitor, providing a secondary low-impedance path for sending AC current to the ground.Newmar’s latest galvanic isolator meets the latest ABYC A-28 2019 requirements, including being a failsafe. This design can meet the strictest temperature and current tests to create a robust solution for galvanic protection.Features: Protects against corrosion Maintains a safe environment Certified to the UL1500 standard for Ignition Protection Tested to a 50 degrees C ambient temperature The 30A fail-safe feature ensures ground maintenance Connection in the event of isolator failure Specifications: Shore Power Voltage: 115–230V    Maximum Short Circuit: 5000 Amps Stray Current Protection: Up to 1.4 VDC Dimensions (LxWxH): 200 x 189 x 68.5 mm This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Quick Guide (pdf)

    $417.50$252.50

  • Sale -15% Victron Galvanic Isolator VDI-16A, 16 AMP Max Waterproof Potted [GDI000016000] Victron Galvanic Isolator VDI-16A, 16 AMP Max Waterproof Potted [GDI000016000]

    Victron Galvanic Isolator VDI-16A, 16 AMP Max Waterproof Potted [GDI000016000]

    Galvanic Isolator VDI-16A, 16 AMP Max Waterproof PottedThe galvanic isolator prevents electrolytic corrosion. It blocks low-voltage DC currents that enter your boat via the shore power earth wire. These currents can cause corrosion to the boat’s underwater metals, like the hull, propeller, shaft, and so on.The galvanic isolator consists internally of two diodes which are connected in an anti-parallel fashion. When they are connected in this way, the diodes allow current in both directions but only above a certain threshold voltage. The voltage at which diodes conduct is about 1.4 Vdc.The isolator is installed directly behind your boat's 120V - 230V connection. The forward voltage from the galvanic isolator is higher than the potential difference between metals. As a result, this voltage will not allow conduction and as such, the galvanic isolator will prevent any electrolytic current. However, if there is a (higher) error voltage in the AC circuit, the diodes will allow current through and the residual-current device will break the circuit.Please contact your dealer for any returns, repairs or support issues related to this product. Owner's Manual (pdf)

    $129.00$109.65

  • Sale -15% Victron Argofet Battery Isolator 100-3 3 Batteries - 100AMP [ARG100301020R]

    Victron Argofet Battery Isolator 100-3 3 Batteries - 100AMP [ARG100301020R]

    Argofet Battery Isolator 100-3 3 Batteries - 100AMPSimilarly to Argodiode battery isolators, Argofet isolators allow simultaneous charging of two or more batteries from one alternator (or a single output battery charger), without connecting the batteries together. In contrast with Argodiode battery isolators, Argofet isolators have virtually no voltage loss. Voltage drop is less than 0,02 Volt at low current and averages 0,1 Volt at higher currents. Please contact your dealer for any returns, repairs or support issues related to this product. Quick Guide (pdf)Brochure (pdf)

    $135.00$114.75

  • Sale -14% Analytic Systems 200A, 40V 3-Bank Ideal Battery Isolator [IBI3-40-200]

    Analytic Systems 200A, 40V 3-Bank Ideal Battery Isolator [IBI3-40-200]

    200A, 40V 3-Bank Ideal Battery IsolatorFeatures: Waterproof Expoxy Sealed Construction Easy Connection Most Efficient use of Available Alternator Output Maximize Battery Performance Three year parts and labour warranty Analytic Systems introduces the IBI (Ideal Battery Isolator) for 1, 2 and 3 bank battery systems, allowing all the batteries to be fully charged from a single alternator while maintaining electricalisolation between the battery banks or between a vehicle and trailer.Ideal Diode technology uses MosFet Transistors and control circuitry to replace the diode used in a traditional battery isolator and reduces the voltage drop across the isolator to a mere 160 millivolts at 200 Amps of charging current and essentially zero volts at low current, so all the power of the alternator is applied to the batteries ensuring a full recharge every time.While the Ideal Battery Isolator is designed to be used with an alternator, it can also be used to convert a single bank battery charger to a 2 or 3 bank charger or as a pure diode between a vehicle and trailer or other remote load. Owner's Manual (pdf)Brochure (pdf)

    $339.00$290.50

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