Battery dead by morning
Something drawing power with everything switched off, a worn-out battery, or a charger that isn’t really charging. I measure the resting draw and the voltage under load, and then decide.
Marine electrical · Everett, WA
I diagnose, repair and upgrade electrical systems on recreational boats — 12 and 24 V DC and AC aboard — in Everett, Mukilteo, Edmonds and nearby marinas. I’ve worked as an electrician on superyacht builds at Delta Marine in Seattle, and I wrote Boat Electrical, a free handbook for owners.
I come to your boat, in the slip or on the trailer. English and Russian spoken.
Common complaints
The same complaint can come from five different faults. So I measure before I decide — and you never pay for parts swapped in on a guess.
Something drawing power with everything switched off, a worn-out battery, or a charger that isn’t really charging. I measure the resting draw and the voltage under load, and then decide.
Almost always voltage drop in the starting circuit, or a shared negative that carries starter current. I find the drop with a meter, not by swapping parts until it goes away.
A fuse protects the wire, not the device. I check that every fuse and breaker matches the wire’s gauge and run length, and look for circuits wired straight to the battery with no protection at all.
Float switch, the always-on feed that bypasses the battery switch, the fuse, the connections down in the bilge. A bilge pump has to work when nobody is aboard.
Pedestals with ELCI protection cut power when current leaks to ground instead of returning on the neutral. I find the leak aboard, or the spot where neutral and ground are tied together, and fix it — before the marina asks you to stay unplugged.
I walk the whole boat and build a boat passport: what feeds what, and what protects it. Then you get a work list ranked by risk, not everything at once.
Chartplotter, fishfinder, VHF, battery monitor, inverter/charger; a second bank with its own switching; proper protection on every new circuit.
How it works
By email: the boat, where she’s kept, what’s happening, and what changed just before it started. Photos of the panel, the batteries and the trouble spot make the initial visit much shorter.
Before I drive out, I tell you where to start and how the work will be billed.
I don’t replace anything until a measurement points to the cause: voltage under load, voltage drop, resting draw.
What I found, what I did, the readings before and after, and what can wait and why.
Where I work
I cover Everett, Mukilteo, Edmonds. By arrangement: Shilshole (Seattle), La Conner, Anacortes, Langley. Trailered boats too.
The handbook
A free handbook on how your boat’s electrical system works, which parts of it can hurt you, what you can do yourself, what to hand off to a pro — and how to check the pro’s work afterward. Every number has a source: ABYC, USCG rules (33 CFR), ISO and the manufacturers’ manuals.
The series
The handbook continues in paid modules and yearbooks: AC systems, lithium, electrical from scratch, engines, electronics, boat types, and diagnosis as a craft. They’re in development, and the ones readers ask for get written sooner.
A clear description and a few photos make the initial visit shorter.