From rough waters to long days offshore, your equipment needs to perform. We help marine professionals and boat owners access the right solutions to stay powered, connected, and ready for anything.
From waterproof cable seals to mounting systems and onboard power solutions, we stock the products built to perform in harsh marine environments.
Premium marine-grade tinned copper battery cable engineered to provide maximum flexibility and superior corrosion resistance in harsh saltwater environments.
Durable, flat multi-conductor duplex marine wire featuring ultra-flexible tinned copper strands and a long-lasting protective jacket to resist moisture.
Flat three-conductor triplex marine cable built with flexible tinned copper wire, perfect for safely routing heavy AC power through damp boat bilge spaces.
Heavy-duty, surface-mount marine circuit breaker offering reliable, waterproof thermal overcurrent protection for high-amp DC electrical ship systems.
High-capacity, visible manual reset marine circuit breaker designed for surface mounting to reliably protect heavy-duty DC utility loads and trolling motors.
Watertight IP68 horizontal entry seal specifically engineered to cleanly route Starlink cables through fiberglass or metal boat decks without removing plug ends.
Precision-machined black anodized aluminum wedge mount designed to securely position and optimize flat high-performance Starlink satellite antennas on ships.
Advanced, highly efficient 50A DC-DC battery charger engineered to safely charge marine house battery banks directly from smart alternators while underway.
Professional-grade 24V inverter and sophisticated battery charger system featuring seamless shore power transfer and advanced electrical power management.
UL 458 certified 12V inverter charger delivering true sine wave power, ideal for managing dual 120V alternating current marine shore power configurations.
Compact 6-circuit ST Blade marine fuse block with an integrated negative bus bar, providing safe, organized, and centralized DC power distribution onboard.
Heavy-duty 12-circuit ST Blade marine fuse block equipped with a grounding bus bar to cleanly consolidate and protect multiple electronic boat accessories.
“Great product. Intelligently designed and well made. Used for column transition for outdoor speaker cable from the ground into hollow columns of a pergola that the outdoor speakers were attached to. Wanted a clean transition with maximum water and pest resistance. This was the ideal solution.”

79+ Reviews on Amazon
“Installed this on my boat and so far it is working fantastic!!! It also really holds my cell phone very securely so I don’t have to worry about it getting tossed around on the boat!”

8+ Reviews on Amazon
“The only fitting I use for installing wires through the roof. The look amazing and are durable. I have installed a dozen of these cable seals in various sizes.”

27+ Reviews on Amazon
On the water, there’s no room for failure. Your systems need to perform in wet, high-vibration, and unpredictable conditions.
That’s why 12 Volt Power provides access to marine-grade mounting systems, waterproof cable management, and onboard power solutions designed for durability and long-term performance.
Instead of sourcing from multiple vendors, you get everything in one place with faster fulfillment and support from product specialists who understand marine applications.
We’ll connect you within one business day.
That’s why we focus on being more than a supplier. We help boat owners, marine professionals, and fleet operators access the right products quickly so they can stay powered, connected, and ready for every trip.
Your dependable fleet electrical partner. Stocking the parts first responders depend on to keep apparatus operational and communities protected.
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