Pacific Yacht Systems · vidéo

Ce que couvre cette vidéo

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).Watch 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.Watch An external regulator with a temp sensor and a deliberate output ceiling solves the overheating problem without abandoning fast charging entirely.3:59

Plus de vidéos de Pacific Yacht Systems

There Is NO MORE ROOM For Additional Batteries, What Do You Do? PYS Tech Talksept. 2026DIY vs Professional Boat Electronics, What to Look for When Buying Used - PYS Tech Talkaoût 2026When Battery Charging Through An Inverter Might Make Sense - PYS Tech Talkaoût 2026Upgrading Your Alternator? These Are OUR Top Tips - PYS Tech Talkaoût 2026

De Pacific Yacht Systems — voir le bateau, l'équipage et chaque vidéo analysée de la chaîne.

The Sailing Directory Newsletter

Un e-mail avec les meilleures trouvailles de la flotte — les moments, les bateaux et les histoires qui valent la peine d'être regardés. Entrez votre adresse pour recevoir votre propre exemplaire.