Electronics play a big role in modern boating, from navigation and sonar to communication and engine monitoring. Winter is an ideal time to give your equipment some attention and prevent issues that could affect your safety or performance once spring arrives.
Cold temperatures reduce battery output, especially for older batteries. Check charge levels regularly and use a smart charger to maintain healthy voltage. Make sure battery terminals are clean and tight, and inspect cables for signs of corrosion or wear.
If your boat is stored on a trailer or lift, disconnect the battery when not in use to prevent slow drainage caused by idle electronics.
Moisture and salt can create corrosion under insulation or inside connectors. Look for cracked coating, green or white powder around terminals, and any wiring that looks brittle. Replacing a weak section of wire now can prevent a failure on the water later.
A light coating of dielectric grease on connections helps keep moisture out.
Modern sonar units rely on clean transducers and stable power. Winter is a great time to clean the transducer face with mild soap, remove any buildup, and check the mounting hardware.
Update your chartplotter software while the boat is stored. Manufacturers often release improvements during the off-season.
Even on warmer winter days, condensation can build up inside closed consoles. Small moisture absorber packs can help protect electronics, especially if your boat is stored outdoors.
Sunlight is weaker in winter but still causes long-term wear. Use a reliable cover and ensure your electronics are shaded, especially if the boat is kept on a lift or trailer.
Taking a few preventive steps now keeps your electronics reliable, accurate, and ready for the next season. A little off-season care can extend the life of your equipment and save money in future repairs.