Off-Grid Power Systems by MobileMustHave
A Smarter Way to Build Your Off-Grid Power System.
Complete system design, expert support, and flexible installation options from planning through power-up.
Off-Grid Ready. Simplified.
Build Your System
Free and zero obligation — tell us your rig, appliances, and how long you stay out. Explore as many configurations as you like.
Validate with Engineering
Every order includes a validation call with our engineering team — you'll get a scheduling link by email right after purchase, and we confirm your system is exactly right before anything ships.
Install Your Way
DIY, DIY + engineer commissioning, or full professional install at our Michigan facility.
Take the guesswork out by choosing an expertly curated system.
Our configurator matches you to a tier and prices it for your rig — free, no obligation, emails your results directly to you.
Essentials
Pro
Elite
BY CONSULTATION*Estimated runtime for one 13.5K BTU A/C with soft start on base battery capacity; actual runtime varies with conditions and other loads.

We Don't Just Sell These Systems. We Live On Them.
MobileMustHave is a team of full-time RVers who design these systems, sell them, and run their own rigs on them every day. Behind us: our power partners — Victron, Epoch — and a professional installation facility that brings every build home.
Dozens of Parts. One System. Zero Guesswork.
Solar, alternator, shore, batteries, inverters, monitoring — dozens of components that have to work as one. That's the part we've already done. You answer the easy questions — we handle the complicated ones.
Everything behind your power system is already figured out.
Your configured system brings together the power you use, the energy you store, the ways you recharge, and the monitoring that lets you see what’s happening. We configure those pieces around your RV, your travel style, and the capability you want.
Every system ships with its documentation and a custom wiring diagram for your exact combination.
Choose the right install path for you.
Before you hit the road, our engineering team will review your installation, verify every connection, configure your VRM, and make sure your system is ready to go. Choose the option that works best for you.
DIY
You install it — we already designed it. Custom wiring diagram, video guides, and our support team behind you.
DIY + Commissioning
Build it yourself, power it on with us. Our engineers verify and sign off — virtual or on-site, chosen below.
Professional Installation
Tell us what you want your RV to do. The finished system is professionally installed and commissioned through our installation partner, with a full walkthrough before you roll out.
Virtual Commissioning
Submit photos of your install, then join a video call with an engineer — they review everything, walk you through power-on, and configure VRM with you. About 90 minutes for a clean install, from anywhere.
On-Site Commissioning
Drive to our facility in Traverse City, Michigan. Our team physically inspects every component — lugs, wiring, fuses, torque specs — sets up VRM, and gets you road-ready on the spot.
Our systems in action
Know what you need? Shop the parts we build with.
Every component below is one we install in our own builds and support after the sale. Not sure how it fits together? Build a complete system instead — we size and match everything for you.
Common Questions
You'll get an email right after purchase with a link to schedule your engineering validation call. It's on every order — we review what you bought against your rig and your loads, and nothing ships until we've confirmed it's the right system for you.
Absolutely — schedule a pre-purchase consultation. Build your system first so the team knows exactly what you're looking at, then we'll walk through it together. No obligation either way.
The configurator accounts for your rig type and available space. Vans, travel trailers, fifth wheels, and motorhomes all have proven layouts — and a consultation settles anything unusual.
Many of our customers do. You get a custom wiring diagram, video guides, and our engineers by email or scheduled call — and commissioning verifies the work before you rely on it.
Systems ship from our Michigan warehouse; you'll see current lead times when you build your system.
Victron and Epoch factory warranties cover the components, and our team supports the whole system — with VRM remote monitoring, our engineers can see what you see on your support call.
Financing options are shown at checkout — build your system to see your price first.
The platform is expandable — add batteries (up to 6) or solar without replacing what you already own.
No — solar is one of several charging sources. A complete system coordinates shore power, alternator charging, generator input, lithium storage, inverter power, monitoring, and protection so they work as one. That’s the system we’ve already designed around.
It matches your rig, travel style, appliances, and off-grid goals to a proven system architecture — hundreds of design decisions handled behind the scenes, a few easy questions for you. Every order is then validated by our engineering team before it ships.
Find Out What Your Rig Needs.
The Off-Grid Power System Configurator matches you to a system and prices it — free, no obligation, two minutes.










