Pacific Yacht Systems · vídeo

Qué cubre este vídeo

Lithium battery banks draw full alternator output continuously — unlike lead-acid batteries, they never signal the regulator to throttle back, making alternator overheating probable rather than merely possible regardless of alternator size (120 A, 200 A, or 300 A at 12 V).▶ 0:00 Jeff Cote of Pacific Yacht Systems explains three countermeasures.▶ 0:21 First, install an external voltage regulator — he names Wakespeed (his current choice) and Balmar (his previous one) — which accepts a lithium charge profile and actively manages output.▶ 1:40 Second, mount a temperature sensor on the alternator chassis so the regulator can reduce or cut charging before the unit fails.▶ 2:04 Third, derate the alternator's maximum output; Cote runs his own alternator at 75% of rated capacity, trading peak charge speed for lower operating temperature and longer service life.▶ 2:36 The core problem is that lithium batteries present a near-constant bulk-charge load, so the alternator runs at high output for extended periods in an already-hot engine room.▶ 0:00 An external regulator with a temp sensor and a deliberate output ceiling solves the overheating problem without abandoning fast charging entirely.▶ 3:59

Más de Pacific Yacht Systems

The Biggest Financial Mistake in Boat Electrical Maintenance | PYS Tech Talkjul 2026How to Plan a Successful Marine Electrical Project - PYS Tech Talkjul 2026The Wiring Mistake That Melts Boat Cables (And How to Avoid It) - PYS Tech Talkjul 2026100% Solar On My Boat! Is It Possible? PYS Tech Talkjul 2026

De Pacific Yacht Systems — mira el barco del canal, la tripulación y cada vídeo analizado.