Before you start
Gather the appropriate supplies and review the specific equipment manual.
- Listing equipment inventory
- Flashlight
- Independent surveyor
Step-by-step instructions
List all power sources
Record shore power, inverter, generator, alternator, solar and wind charging as advertised.
Identify battery-bank age and chemistry
Ask for battery dates, capacity, BMS details, charger models and maintenance history.
Look for red flags
Photograph obvious exposed copper, unsupported batteries, corrosion, heat discoloration and messy modifications.
Request working demonstrations
Ask the seller to show safe operation of battery monitoring, AC loads, charge sources and circuit protection.
Commission detailed tests
Have a qualified marine electrician confirm safety, system condition and actual capacity where material to the purchase.
Safety note
Do not open energized panels or remove live battery connections during a walk-through. Shore power can be lethal.
Key takeaway
A shiny new inverter does not guarantee the boat has a sound electrical system.
Keep this job on your maintenance schedule
Save the topic as a maintenance task, choose a due date or engine-hour target, and record future service. Free and stored on your device.
Add to my maintenance plannerThis guide is for general education. Follow your equipment manufacturer’s instructions, current navigation guidance and applicable marine safety standards. When uncertain, use a qualified marine professional.