Before you start
Gather the appropriate supplies and review the specific equipment manual.
- Shunt manufacturer diagram
- DC system schematic
- Battery bank details
Step-by-step instructions
Identify the negative bus arrangement
Map battery negative returns, charging sources and where the measured bank connects.
Check the monitor requirements
Verify rated continuous current, mounting clearances and approved cable sizes.
Plan the shunt location
Keep it dry, protected and accessible, with returns routed exactly as the manual describes.
Assess protection and isolation
Coordinate with the battery manufacturer and marine electrician before cable changes.
Test against real loads
After professional installation, compare charge/discharge readings under known equipment use.
Safety note
Battery negative wiring can carry dangerous fault currents. Do not rewire an energized battery system.
Key takeaway
A correct shunt installation determines whether the monitor sees all current.
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.