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Charles Battery Isolators have a 1-year warranty. Made in the USA. They are ignition protected and prevent over-charging. They feature a heat chamber design. They have Models that have 70,90,130,160,190,and 250 Amps.
70 Amp 1 Alternator 2 Bank Battery Isolator - Charles
All Charles Battery Isolators are ignition protected and prevent over-charging. They feature a heat chamber design, protective boots on heavy-duty 5/16 battery and alternator studs, corrosion-resistant casings, are compact and easy to install. Either leg of the Charles Battery Isolator handles the entire alternator output amperage rather than a portion of the rated load.
90 Amp 1 Alternator 2 Bank Battery Isolator - Charles
All Charles Battery Isolators are ignition protected and prevent over-charging. They feature a heat chamber design, protective boots on heavy-duty 5/16 battery and alternator studs, corrosion-resistant casings, are compact and easy to install. Either leg of the Charles Battery Isolator handles the entire alternator output amperage rather than a portion of the rated load.
130 Amp 1 Alternator 2 Bank Battery Isolator - Charles
All Charles Battery Isolators are ignition protected and prevent over-charging. They feature a heat chamber design, protective boots on heavy-duty 5/16 battery and alternator studs, corrosion-resistant casings, are compact and easy to install. Either leg of the Charles Battery Isolator handles the entire alternator output amperage rather than a portion of the rated load.
160 Amp 1 Alternator 2 Bank Battery Isolator - Charles
All Charles Battery Isolators are ignition protected and prevent over-charging. They feature a heat chamber design, protective boots on heavy-duty 5/16 battery and alternator studs, corrosion-resistant casings, are compact and easy to install. Either leg of the Charles Battery Isolator handles the entire alternator output amperage rather than a portion of the rated load.
160 Amp 1 Alternator 3 Bank Battery Isolator - Charles
All Charles Battery Isolators are ignition protected and prevent over-charging. They feature a heat chamber design, protective boots on heavy-duty 5/16 battery and alternator studs, corrosion-resistant casings, are compact and easy to install. Either leg of the Charles Battery Isolator handles the entire alternator output amperage rather than a portion of the rated load.
190 Amp 1 Alternator 2 Bank Battery Isolator - Charles
All Charles Battery Isolators are ignition protected and prevent over-charging. They feature a heat chamber design, protective boots on heavy-duty 5/16 battery and alternator studs, corrosion-resistant casings, are compact and easy to install. Either leg of the Charles Battery Isolator handles the entire alternator output amperage rather than a portion of the rated load.
190 Amp 1 Alternator 3 Bank Battery Isolator - Charles
All Charles Battery Isolators are ignition protected and prevent over-charging. They feature a heat chamber design, protective boots on heavy-duty 5/16 battery and alternator studs, corrosion-resistant casings, are compact and easy to install. Either leg of the Charles Battery Isolator handles the entire alternator output amperage rather than a portion of the rated load.
70 Amp 2 Alternator 3 Bank Battery Isolator - Charles
All Charles Battery Isolators are ignition protected and prevent over-charging. They feature a heat chamber design, protective boots on heavy-duty 5/16 battery and alternator studs, corrosion-resistant casings, are compact and easy to install. Either leg of the Charles Battery Isolator handles the entire alternator output amperage rather than a portion of the rated load.
3.6KVA 30 Amp 120VAC 60Hz Isolation Transformer - Charles
When properly installed, Charles Marine Isolation transformers will electrically isolate the AC shore power from the boat's AC power system. The boat's electrical system and the grounding conductor are not actually connected to the shore-side power. There is no direct electrical connection between earth-grounded shore AC power and the onboard electrical system. The shore ground is connected to a shield that is wound between the primary (shore) and the secondary (boat) transformer winding. The connection of this grounding wire only to the shield of the transformer isolates the boat's AC electrical system from shore.

Compliance with independent testing lab requirements maximize safety
  • Marine UL listing ensures durability and safety
  • New European CE EMC Certification (50hz models)
  • Greatly reduced potential for in-water shock hazard
  • Eliminates the need for polarity alarms and galvanic isolators
    Superior technology guarantees top performance
  • Fully-encapsulated components and transformer windings
  • Full current carrying shield per ABYC E-8.20.1
    Easy to install and use
  • Occupies less space and easier to install than most units
  • Terminal blocks for easy customer connections
  • 3.6 KVA and 12 KVA units mount to either bulkhead or deck. 24 KVA unit mounts to deck only.
    Corrosion-resistant housing and components
  • Convection-cooled enclosure meets the intent of NMEA 3R requirements.
  • External Temperature Probe For 12 Volt 30 80 - Charles
    Temperature probe for 30, 80, and 100 amp 12 volt models and 50 & 100 amp 24 volt models.
    Battery Charger 30 Amp 12 Volt 120VAC 60 Hz 3 Bank 9000 - Charles
    These marine UL listed chargers use self-regulating ferroresonant transformers devoid of any complicated switching circuits to charge up to three battery banks simultaneously. Built with rugged stainless steel enclosures and UL recognized, high-quality components to withstand the marine environment. Accurately charge lead-acid batteries only. Features include an easy-to-read ammeter to indicate rate of charge and ingnition-protected components for safety.
    Battery Charger 40 Amp 12 Volt 120VAC 60 Hz 3 Bank 9000 - Charles
    These marine UL listed chargers use self-regulating ferroresonant transformers devoid of any complicated switching circuits to charge up to three battery banks simultaneously. Built with rugged stainless steel enclosures and UL recognized, high-quality components to withstand the marine environment. Accurately charge lead-acid batteries only. Features include an easy-to-read ammeter to indicate rate of charge and ingnition-protected components for safety.
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