The On Deck Channelvideo

A New Marine Lithium Battery to Consider | Review & Tear Down Pt. 2 of 2

October 27, 2024 · 21 min · 3K views · St. Petersburg

What this video covers

A dual-purpose lithium iron phosphate battery designed for both engine cranking and house bank loads features a robust internal construction intended to handle high inrush currents from thrusters, windlasses, and winches.1:18 The battery utilizes dual positive and negative terminals to distribute load and reduce connection hotspots, while internal temperature sensors on the terminals trigger a shutdown to prevent melting during high-resistance events.4:46 A teardown reveals a heat sink integrated into the top of the case to dissipate heat from the FETs, which are mounted on a separate board from the logic components to prevent overheating.17:06 The unit includes a heating jacket for low-temperature charging and supports daisy-chain networking with Victron systems, allowing for aggregate capacity monitoring.19:46 The battery is serviceable, permitting the replacement of electronic components rather than the entire unit if the BMS or communication board fails.18:31 It also features an audible alarm to signal impending BMS shutdowns, aligning with ABYC E13 recommendations.11:24

Watch on YouTube

More from The On Deck Channel

This is My Favorite Upgrade on a Boat... | Leopard 50Oct 2026Get a Boat They Said... It Will Be Fun | New to Boat Life SeriesSep 2026First Time Sailing... Failed | New to Boat Life SeriesSep 202624 shipping containers. A lot more than rigging!Aug 2026

From The On Deck Channel — see the channel’s boat, crew, and every analyzed video.

The Sailing Directory Newsletter

One email with the fleet's best finds — the moments, boats, and stories worth your watch time. Enter your own address to get your own copy.

Report an issue