The Marine Knowledge Network
Field write-ups from real jobs - what broke, what fixed it, torque specs and part numbers included. Ask it a question; specs answer inline.
1 direct answer and 26 articles for “battery”
Marine Batteries and Wiring Basics
## Battery types in the field - **Starting:** thin plates, high cranking amps, hates deep discharge ...
Outboard Power Tilt/Trim Troubleshooting
... Check the battery and the trim circuit fuse/breaker — trim motors pull hard and ...
Bilge Pump Setup Done Right
... 2. **Pump sized realistically.** Rated capacity is at zero head with a full battery ...
MerCruiser Raw Water Impeller: Alpha vs Bravo Differences
... Key out, battery off before rotating anything by hand.
Yamaha WaveRunner No-Start Diagnosis
... PWC batteries are small and die young; corroded terminals under the seat are routine ...
Spring Recommissioning Checklist: Outboard Boats
... Clean and re-torque terminals; verify the battery switch and that the bilge pump ...
1994 Catalina 30 MKIII
... x] Wheel steering - [x] Shore power / battery charger - [ ] Hot water heater - [x] Pressure water ...
Mercury Outboard Water Pump / Impeller Replacement
... Disconnect the battery and remove the kill lanyard. Shift into forward gear first if ...
Outboard Compression Testing: How to Do It and Read the Results
... Disconnect the battery-side risk: remove the lanyard, disable ignition per the service manual ...
Honda BF-Series Carburetor Cleaning
... Shut off fuel, disconnect the battery, and work in a ventilated space with no ...
Quoting a Repower: The Mobile Mechanic's Guide
... battery cables (gauge and length per new engine's manual), possibly bigger battery per ...
Sea-Doo Jet Pump Wear Ring Inspection and Replacement
... Support the watercraft, disconnect the battery. 2. Remove the pump assembly from the hull ...
Sterndrive Spring Recommissioning Checklist
... fuel lines and the tank vent. - Battery load-tested, terminals clean and tight. ## Drive ...
Shrink Wrap vs Indoor Storage: The Honest Trade-offs
... non-negotiable regardless of cover. 2. Battery out and maintained. 3. Fuel stabilized and ...
The On-Water Diagnosis Kit: What's Actually in the Bag
... s simplest fuel-delivery test tools) - Battery load tester ## Almost-always-used consumables - Common ...
MerCruiser Winterization (Raw-Water-Cooled)
... t pool in the exhaust. 8. Battery out and on a maintainer; block off ...
Sea-Doo Winterization Step by Step
... 7. **Battery out**, on a maintainer, terminals greased. 8. **Interior:** sponge the bilge dry ...
Volvo Penta Sterndrive Annual Service Essentials
... the drive during removal, disconnect the battery, and keep hands clear of props — key ...
Pontoon Boat Inspection: Logs, Leaks, and Pre-Season Checks
... pump in the pod if fitted, battery secured and covered. - **Furniture and gates** latched ...
Yamaha F-Series Four-Stroke Winterization
... 7. **Battery** — disconnect, store on a maintainer. 8. Touch up paint nicks, spray corrosion ...
Sea Trial Checklist for Mechanics
... Fuel adequate, bilge checked dry (baseline), battery voltage noted - Engine cold-start behavior observed ...
Anodes and Galvanic Corrosion, Explained for the Dock
... especially) and you've built a battery: the less noble metal dissolves to protect ...
Evinrude/Johnson Two-Stroke No-Spark Diagnosis
... spark "good" - Ignoring a low-reading battery/dirty connections on models where cranking speed ...
MerCruiser Alpha One Bellows Inspection: The Boat-Sinker Check
... it — they are heavy and awkward. Battery disconnected before working near the starter and ...
Submerged PWC / Water Ingestion: The First 48 Hours Matter
... Ventilate and disconnect the battery. Fresh water and electronics may have survived; salt water ...
Prop Hub Replacement and the Spun-Hub Field Call
... Kill switch off, key out, battery disconnected — you are putting hands on the prop ...