2025 Transit Campervan — Ultimate Electrical Upgrade

We designed and installed a complete off-grid electrical system to give this campervan the freedom to travel without relying on electrical hookups. The system features two Epoch 12V 300Ah heated lithium batteries, a Victron MultiPlus Inverter Charger, and a Victron monitoring system with a centralized touchscreen display. Four 150W roof-mounted solar panels provide 600W of solar power, while an additional 200W portable panel offers charging flexibility when parked in the shade. A DC-to-DC charger also uses the vehicle's alternator to recharge the batteries while driving. For year-round comfort, we installed a Velit 12V DC air conditioner, a Velit diesel heater, and a Leman's roof ventilator fan. Finally, we pre-wired the entire van for future additions, including water heaters, lighting, outlets, and USB ports. The customer will finish the remaining build themselves, knowing they have a professionally designed electrical and mechanical foundation ready for adventure. Be sure to check out our other videos for installation tutorials and more off-grid campervan tips!

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What I used in this build

Battery Material

Battery - Epoch 12V 300AH Essential Series View Shunt - Victron SmartShunt w/ Bluetooth View Victron Lynx Distributor M10 View Marineco Battery Switch 400A View Battery Strap Nylon Straps View

Inverters & 120V

12V Inverter - Victron Multiplus 3000VA Compact 30A 120V View Programing Cable - Victron USB USB to MK3 View AC Connectors - Bushing 3/4" - 5pc View Shore Power Plug - 15A 120V - 15 A View Shore Power Plug - 30A 120V - 30A View

Solar Material

Solar Panels - Rich Solar 150W 150W View Solar Controller - Victron 100-50 50A View Aluminum Unistrut - 5ft 5 ft View Mounting Hardware - Strut Clamp End 10 pcs View Mounting Hardware - Strut Clamp Mid 10 pcs View Roof Junction Box - 6" x 6" PVC View Connector - 1/2" Water Tite 1/2" View Sealant - Dicor White View

DC-DC Material

DC-DC - Victron Orion XS 1400 50A View

DC Over-Current

Fuse - T Class 300 A View Fuse - Mega 400A 5 Pack View Fuse - Mega 100A Single View Fuse - Mega 60A 5 Pack View Fuse - Mega 40A Single View

General Material

Device - USB/12V Outlet White View Device - Duplex Receptacle 20A 20 A View Zip Ties - Large Pack 11" - 500 pcs View Zip Tie Base - Saddle 100 pack View Zip Tie Base - 3M 100 pack View Wire Terminals - Assortment Assortment View Heat Shrink Tubing - Black 3/4" 20 ft View Heat Shrink Tubing - Black 1/2" 20ft View Heat Shrink Tubing - Red 3/4" 4ft View Heat Shrink Tubing - Red 1/2" 20ft View Electrical Tape - Black Black View Electrical Tape - Red Red View Open Slot Cable Raceway 3" x 3" x 67" View Wire Protection - 1/2" Loom 100 FT View Wire Protection - 3/4" Loom 100 FT View Wire Protection - 1" Loom 100 FT View Split Corrugated Tubing Multipack View Plexiglass 24” x 48” x 1/4” View

Cerbo GX

Victron Cerbo GX MKII GX Device View Victron GX Touch Screen 7" GX Touchscreen View VE. Direct Cable - 3m 10' View VE. Direct Cable - 1m 3' View VE direct to USB View Ethernet Cable - 3ft 5 pcs View Micro SD Card 16GB View HDMI Extension 15 ft View 12V USB Outlet - Cerbo GX 12V - USB View Mopeka Pro Tank Sensor BT Tank Sensor View RuuviTag Temp Sensor BT Temp Sensor View

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