PreviewBilge pump with an always-on supply
Keep the automatic bilge circuit powered when you switch off the rest of the boat.
16 ready-to-use examples
Start with an example.
Pick a diagram for your boat, campervan or cabin. Open it as a new project and make it your own.
Boat
Preview
PreviewBoat LiFePO4 house battery retrofit
Replace the house battery with LiFePO4, retain a lead-acid starter battery and charge through a current-limited DC–DC charger.
PreviewBoat solar charging for a house battery
Follow a solar panel through its controller to a house battery, chartplotter and navigation lights.
Preview12V trolling motor with a separate battery
Give the trolling motor its own battery and keep the chartplotter on a separate supply.
PreviewShore charging for two boat batteries
Use separate charger outputs to replenish two batteries without joining their positive terminals.
PreviewBoat dual battery selector switch
See how a 1–2–Both switch feeds the same boat circuits from either battery.
Campervan
PreviewCampervan DC-DC charging with Orion XS
An Orion XS links the vehicle supply to a separate house battery, with a fridge on its own fused branch.
PreviewCampervan solar and alternator charging
A REDARC BCDC1240D accepts roof solar and vehicle power through one charger, feeding an AGM house battery and fridge.
PreviewCampervan solar for a battery, fan and lights
Two parallel roof panels charge a house battery through a Rover controller. The fan and lights each have a separate fused circuit.
PreviewCampervan shore charger with SmartShunt
A Blue Smart charger and SmartShunt share one house battery. Both charging and lighting current pass through the monitor.
PreviewCampervan inverter with a separate DC supply
A dedicated battery circuit feeds a Phoenix inverter, while a separate fused branch keeps the cabin lights independent.
Off-grid cabin
PreviewOff-grid cabin solar lighting
Follow one solar panel through a controller and battery to a separately fused lighting circuit.
PreviewCabin battery monitoring with SmartShunt
Add a SmartShunt so both solar charging and cabin lighting pass through the battery monitor.
PreviewCabin lighting with BatteryProtect
Put a BatteryProtect in the lighting branch while leaving the solar charging path available to recover the battery.
PreviewTwo solar controllers on one cabin battery
Give each solar array its own controller, then combine their battery outputs at the cabin's DC buses.
PreviewCabin inverter with a separate DC supply
Keep the inverter on its own heavy DC branch while solar charging and cabin lights share the same battery.
Based on manufacturer wiring diagrams. Preview an example for its sources and installation notes.