Boat · Van · Off-grid cabin

Start with a circuit you can explore.

Fifteen examples based on manufacturer wiring diagrams. Follow the connections, inspect the cable sizes, then adapt a schematic in Crimp.

Boat

All five examples

A bilge pump that stays ready

Keep the automatic bilge circuit powered when you switch off the rest of the boat.

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Solar for a small sailboat

Follow a solar panel through its controller to a house battery, chartplotter and navigation lights.

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A separate trolling motor battery

Give the trolling motor its own battery and keep the chartplotter on a separate supply.

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Charge two batteries at the dock

Use separate charger outputs to replenish two batteries without joining their positive terminals.

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Choose either house battery

See how a 1–2–Both switch feeds the same boat circuits from either battery.

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Van

All five examples

Charge the house battery while driving

An Orion XS links the vehicle supply to a separate house battery, with a fridge on its own fused branch.

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Combine solar and alternator charging

A REDARC BCDC1240D accepts roof solar and vehicle power through one charger, feeding an AGM house battery and fridge.

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Run a fan and lights from roof solar

Two parallel roof panels charge a house battery through a Rover controller. The fan and lights each have a separate fused circuit.

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See what shore charging puts back

A Blue Smart charger and SmartShunt share one house battery. Both charging and lighting current pass through the monitor.

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Give the inverter its own supply

A dedicated battery circuit feeds a Phoenix inverter, while a separate fused branch keeps the cabin lights independent.

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Off-grid cabin

All five examples

Solar lighting for a small cabin

Follow one solar panel through a controller and battery to a separately fused lighting circuit.

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Monitor the cabin battery

Add a SmartShunt so both solar charging and cabin lighting pass through the battery monitor.

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Protect the cabin battery

Put a BatteryProtect in the lighting branch while leaving the solar charging path available to recover the battery.

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Two roof faces, two solar controllers

Give each solar array its own controller, then combine their battery outputs at the cabin's DC buses.

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A separate inverter feed

Keep the inverter on its own heavy DC branch while solar charging and cabin lights share the same battery.

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