Separate the jobs
Many boats have a starting battery and a domestic bank. Learn which switches serve each, and avoid draining the starting supply with cabin loads.
Measure use and charge
List high-consumption appliances and check the charging sources fitted to the boat. Battery voltage alone can mislead while charging or under load; use the monitoring guidance for your system.
Keep installation safe
Battery connections, fuses and ventilation need the right marine specification. Have unfamiliar or damaged electrical work checked by a competent professional.
Before you go
- Identify starter and domestic banks
- Measure loads and charging
- Get damaged wiring checked