Collection: PowerGuard Collection| Marine Battery Care, Chargers & Electrical Supplies

Protect the Power Behind Every Adventure

Your boat's electrical system powers far more than the engine—it supports your navigation, communication, lighting, pumps, and the electronics you rely on every time you leave the dock.

The Roam & Harbor PowerGuard Collection is a professionally curated collection of battery care and marine electrical essentials designed to help keep your boat's electrical system clean, reliable, and ready for every adventure.

Whether you're preparing for a new boating season, maintaining dual batteries, or simply preventing corrosion before it starts, the PowerGuard Collection provides the tools and supplies needed to help extend the life of your electrical system and reduce unexpected issues on the water.

761 products

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    Save $143.40 USD
    Samlex America

    Samlex BGW-400 Battery Voltage Protector 400 AMP [BGW-400]

    Regular price $573.70 USD
    Sale price $573.70 USD Regular price $717.10 USD

    BGW-400 Battery Voltage Protector 400 AMPThe Battery Voltage Protector BGW-400 is an intelligent, user-programmable, fully waterproof low-voltage disconnect. The battery voltage protector prevents excessive discharge of...

  • Bluewater

    Bluewater Auto Charging Relay 12V - 140 AMP [9800-7101-00]

    Regular price $77.91 USD
    Sale price $77.91 USD Regular price $0.00 USD

    Auto Charging Relay 12V - 140 AMPThe automatic charging relay (ACR) automatically manages battery charging to ensure maximum efficiency and protect your batteries.Features: Automatic battery management...

  • Bluewater

    Bluewater Off/On Combine Battery Switch w/o Base - Surface Mount - Red [9800-011-11]

    Regular price $30.22 USD
    Sale price $30.22 USD Regular price $0.00 USD

    Off/On Combine Battery Switch without Base - Surface Mount - RedThe Dual Circuit Plus switch builds on the standard dual circuit configuration by adding an emergency...

  • Bluewater

    Bluewater Off/On Combine Battery Switch w/o Base - Panel Mount - Red [9800-011-10]

    Regular price $40.05 USD
    Sale price $40.05 USD Regular price $0.00 USD

    Off/On Combine Battery Switch without Base - Panel Mount - RedThe Dual Circuit Plus switch builds on the standard dual circuit configuration by adding an emergency...

  • Bluewater

    Bluewater On/Off 4 Post Dual Circuit Battery Switch w/o Base - Panel Mount - Red [9800-010-10]

    Regular price $41.25 USD
    Sale price $41.25 USD Regular price $0.00 USD

    On/Off 4 Post Dual Circuit Battery Switch without Base - Panel Mount - RedThis dual circuit battery switch allows you to control two isolated circuits simultaneously with a...

  • Bluewater

    Bluewater OFF/1/2 Battery Switch - Surface Mount - Red [9800-008-11]

    Regular price $43.54 USD
    Sale price $43.54 USD Regular price $0.00 USD

    OFF/1/2 Battery Switch - Surface Mount - RedThis 1/2/Off switch offers seamless selection between two power sources, with an Off position for isolation. It’s a reliable...

  • Bluewater

    Bluewater Off/1/2/Both Battery Switch - Surface Mount - Red [9800-007-11]

    Regular price $38.96 USD
    Sale price $38.96 USD Regular price $0.00 USD

    Off/1/2/Both Battery Switch - Surface Mount - RedDesigned for dual battery setups, this 1/2/Both selector switch gives you full control to route power from Battery 1,...

  • Bluewater

    Bluewater Off/1/2/Both Battery Switch - Panel Mount - Red [9800-007-10]

    Regular price $34.37 USD
    Sale price $34.37 USD Regular price $0.00 USD

    Off/1/2/Both Battery Switch - Panel Mount - RedDesigned for dual battery setups, this 1/2/Both selector switch gives you full control to route power from Battery 1,...

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