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

27. oktober 2024 · 21 min · 3K visninger · St. Petersburg

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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

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