Marine engineering

Marine engineering

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 […]

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 […]

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 […]

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 SeaLITHIUM VRC-100 Advanced Alternator Controller This product was discontinued in 2018 and superseded by the new VRC-200 Charge Reference Controller.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

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 […]

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 […]