Marine engineering

Marine engineering

Discontinued Products Support & Documentation

Discontinued products still get documentation and support updates when relevant. SeaLITHIUM VRC-100 Advanced Alternator Controller This product was discontinued in 2018 and superseded by the new VRC-200 Charge Reference Controller. Download Product Manual Download Installation Drawings

Engine Reliability: A Look at the Volvo Penta MDI Black Box

Engine Reliability: A Look at the Volvo Penta MDI Black Box

In this article, we have a look at the Volvo Penta MDI electronic black box while relocating it off the side of a D2-40B engine in order to protect it from the heat and vibrations. Background Volvo Penta began the release of the current D-Series marine diesel engines around 2006. While all the larger models […]

Ultrasonic Antifouling System - Part 2, Fighting Algae Growth

Ultrasonic Antifouling System – Part 2, Fighting Algae Growth

In July, I wrote about my experience with a homebrew twin-transducer ultrasonic antifouling system over 3 1/2 years on the aluminium sloop Nordkyn. It didn’t keep the hull clean once the antifouling reached past its prime, but the results were nevertheless very valuable as the system eradicated hard growth like barnacles on the hull, even in the […]

Ultrasonic Antifouling System - Part 1, Development & Construction

Ultrasonic Antifouling System – Part 1, Development & Construction

Starting Point I had hauled out the sloop Nordkyn for its less-than-annual bottom paint job. It was November, that year had been long, and so was getting the thin stringy weed clinging to the hull. In this condition, the boat is unusable. I was determined to make the effort last and so I generously sprayed […]

Protection and Management of Marine Lithium Battery Banks

Protection and Management of Marine Lithium Battery Banks

This article is part of a series dealing with building best-in-class lithium battery systems from bare cells, primarily for marine use, but a lot of this material finds relevance for low-voltage off-grid systems as well. This article discusses the protection of lithium battery banks in the context of marine installations. A previous article detailed the design […]

Electrical Design For a Marine Lithium Battery Bank

Electrical Design For a Marine Lithium Battery Bank

This article is part of a series dealing with building best-in-class lithium battery systems from bare cells, primarily for marine use, but a lot of this material finds relevance for low-voltage off-grid systems as well. Integrating a lithium battery bank on board a vessel introduces a few additional constraints and challenges that don’t exist with lead-acid […]

Assembling a Lithium Iron Phosphate Marine House Bank

Assembling a Lithium Iron Phosphate Marine House Bank

This article is part of a series dealing with building best-in-class lithium battery systems from bare cells, primarily for marine use, but a lot of this material finds relevance for low-voltage off-grid systems as well. Here, we detail the hands-on process of building a lithium battery bank from individual single prismatic cells. There is more to […]

Practical Characteristics of Lithium Iron Phosphate Battery Cells

Practical Characteristics of Lithium Iron Phosphate Battery Cells

This article is part of a series dealing with building best-in-class lithium battery systems from bare cells, primarily for marine use, but a lot of this material finds relevance for low-voltage off-grid systems as well. Batteries are about voltage, current and capacity first and foremost. This article discusses the performance characteristics of lithium iron phosphate cells […]

Lithium Battery Banks – Fundamentals

Lithium Battery Banks – Fundamentals

This article is part of a series dealing with building best-in-class lithium battery systems from bare cells, primarily for marine use, but a lot of this material finds relevance for low-voltage off-grid systems as well. Hundreds, if not more, of research papers have been published about lithium batteries, as well as numerous books. Still, a lot […]

From Lead-Acid to Lithium: New Battery Technology for Power on Board

From Lead-Acid to Lithium: New Battery Technology for Power on Board

This article is part of a series dealing with building best-in-class lithium battery systems from bare cells, primarily for marine use, but a lot of this material finds relevance for low-voltage off-grid systems as well. The development and mass-manufacturing in recent years of large-size lithium-ion battery cells for electric vehicles and grid-tied electricity storage has made […]