DrakeParagon · video

What this video covers

A 42-foot sailboat owner upgrades a dinghy’s propulsion system by replacing a gas-powered outboard with an electric trolling motor powered by two 24V 50Ah LiTime lithium iron phosphate (LiFePO4) batteries.0:21 To manage the 65-amp maximum draw of the motor, the batteries are wired in parallel, doubling the system's capacity to 100Ah and the maximum discharge rate to 100 amps.6:08 Each battery is housed in a custom-built, waterproof plywood and epoxy box reinforced with fiberglass cloth.11:54 The boxes feature rubber-gasketed lids secured by webbing straps and internal straps to prevent battery movement.20:45 Electrical safety is maintained by installing 60-amp Class T fuses from LittleFuse as close to the positive terminals as possible.22:18 Connections between the boxes and the motor utilize waterproof Amphenol SureLock connectors, which are rated for 120 amps.24:45 The LiTime batteries include a built-in battery management system (BMS) with low-temperature cutoff protection and Bluetooth 5.0 for monitoring via a mobile app.10:49 Lithium batteries offer significant weight savings and faster charging compared to lead-acid alternatives.2:44

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