If you're building a bus or large motorhome and want to live comfortably off-grid — this is one of the systems we’ve designed specifically for dependable day-to-day use without going overboard on budget. In the video above, I explain how to size your off-grid setup properly — including how much solar you need, what size inverter makes sense for your lifestyle, how to charge from your alternator, and what kind of battery capacity is enough to get you through the night.
The 48V Large Bus - 3000VA Budget Off-Grid Kit #80 is a cost-effective, solid solution built around the Victron MultiPlus II 3000VA inverter/charger. It provides consistent power for essential appliances like fridges, lights, and a coffee machine, making it ideal for those who want a streamlined off-grid setup with all the basics covered.
This kit includes one Victron SmartSolar MPPT 150/45 solar charger to support up to 2250W of solar input, along with one 5.12kWh BSL lithium battery. It’s perfect for users who want a reliable base system that can be expanded later. The Victron Cerbo GX and 7" touchscreen provide intuitive control and monitoring, both locally and via the Victron VRM app.
Key Features
48V 3000VA MultiPlus II Inverter/Charger – Delivers dependable power for your core off-grid needs.
1 x SmartSolar 150/45 Solar Charger – Manages up to 2250W of solar input efficiently.
5.12kWh BSL Lithium Battery – High-quality lithium storage with expansion potential and long cycle life.
Victron Cerbo GX with 7" Touchscreen – Easy monitoring and control, locally and remotely.
Starter-Friendly DIY Kit – Includes all required components and Zero Grid wiring diagrams to guide your install.
Specifications
48V Large Bus - 3000VA Budget Off-Grid Kit #80
Inverter/Charger
Victron MultiPlus II 3000VA
Solar Charger
1 x Victron SmartSolar MPPT 150/45
Battery Bank
5.12kWh (1 x BSL 48V Lithium Battery)
Monitoring System
Victron Cerbo GX with 7" Touchscreen
DC-DC Charger
10A MPS DC-DC Charger (500W)
Voltage
48V DC
Warranty
5 Years on Victron Components, 5 Years on BSL Battery
Delivery
We ensure prompt and reliable delivery by leveraging our trusted network of stockists. For more details, please visit our Shipping and Returns page.
Warranty
This kit includes a 5-year warranty on all Victron components and a 5-year warranty on the BSL lithium battery. Should you need any assistance, book a warranty phone call with our team to help resolve any issues.
Q: What appliances can this kit power? A: The 3000VA MultiPlus II can handle essentials like a fridge, coffee machine, and LED lighting — making it ideal for basic off-grid needs.
Q: Can I expand the system later? A: Yes! You can add another battery and solar charger later to scale the system as your needs grow.
Q: Does it include monitoring? A: Yep — with the Cerbo GX and 7" touchscreen, you get full visibility and control of your system locally and remotely via the VRM app.
