Vans + motorhomes
RV electrical upgrades
Custom systems for camper vans and Class A, B and C motorhomes—from targeted improvements to complete generator-to-lithium conversions.
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Big Bear Vans
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Solar energy • Big battery banks • True autonomy
Big battery power.
Solar independence.
True off-grid autonomy for RVs, camper vans and boats—large LiFePO₄ battery banks, solar energy and intelligent charging engineered for independence on the road.
Mobile service availableRVs, vans + boats
Power without compromise
Built for how you travel now.
The hum, fumes and upkeep of a generator should not define life off-grid. Big Bear Vans brings years of custom electrical experience to a cleaner generation of power—LiFePO₄ storage, solar charging, high-output inverters and efficient 12V appliances working together as one system.
QuietReliableServiceable
01 Electrical services
At your dock or driveway
Mobile boat service
Marine-ready 12V troubleshooting, battery and inverter upgrades, solar integration and clean, serviceable electrical installations.
Request serviceBuilt around your use
Design + installation
We calculate real loads, plan charging sources, protect every circuit and install a system that is intuitive to operate and easy to service.
Request serviceReal Big Bear Vans installation.Open the lid.See the complete system.
02 The integrated system
Powered furniture by Vankea
Your off-grid power system—already inside the dinette.
The Vankea two-bench dinette transforms into a 68 × 54-inch bed and provides storage access from the top and side. Inside one bench, Big Bear Vans preassembles a complete electrical system using VanPartsOutlet batteries and inverters with proven Victron charging equipment.
- LiFePO₄ battery bank
- Pure sine wave inverter/charger
- Solar charge controller
- DC-DC alternator charging
- 12V + 120V distribution
- Fuses, disconnects and protection
View the $5,799 dinette
Ships assembled. Power system
pre-connected + bench-tested.
The complete utility core
One bench powers the van. The other can carry water and heat.
Skip months of sourcing, layout conflicts and complex utility work. These coordinated, preassembled systems turn finished Vankea furniture into the technical heart of a serious off-grid build.
The finished Vankea dinette and convertible bed platformLoaded, wired and ready to connect.
Choose 600Ah, 1,200Ah or 1,800Ah of LiFePO₄ storage with a 2,000W or 3,000W Vantrix inverter, Victron MPPT solar controller, Victron DC-DC charging, 12V fuse panel, breakers, disconnects and protection.
Fresh water, cabin heat and instant hot water.
The opposite bench can be preassembled with a 30-gallon fresh-water tank, 12V pump and glycol-based diesel or gasoline heater. It warms the cabin and supplies tankless hot water while drawing fuel from the vehicle’s main tank instead of draining the batteries.
Complete the fast-build interior
Cabinetry, kitchen, shower, power, water and heat—without the full luxury-conversion price.
Add an assembled and painted Vankea kitchen plus a full-height aluminum VanPartsOutlet shower, offered in three colors and four sizes for Sprinter and Transit vans. The result solves the hardest DIY integration problems and gets the van on the road much sooner.
03 One complete solution
Three specialists.
One smarter system.
No piecing together parts, cabinets and advice from different places. Every partner does what it does best, so the finished system fits, works and lasts.
Big Bear Vans
Electrical engineering, system design, pre-wiring, installation and long-term service.
VanPartsOutlet
Purpose-selected LiFePO₄ batteries, inverters, charging hardware and 12V appliances.
Vankea
Precision-built, space-efficient cabinetry that turns the power system into usable furniture.
04 Work in the field
Real systems.
Built by our team.
Behind every clean control panel is a carefully planned network of storage, charging, distribution and protection. These are working installations from the Big Bear Vans electrical team.
Generator-to-solar conversions
From noisy backup power to quiet everyday freedom.
We modernize Class A, B and C motorhomes with LiFePO₄ battery storage, solar and intelligent charging—reducing generator runtime while making more of your coach usable off-grid.
Discuss your motorhomeSolar
Alternator
Shore power
LiFePO₄Power bank
12V120VAlways on
05 Mobile office + service area
We bring the shop to you
From Long Beach to Big Bear—and the roads around them.
Our additional mobile electrical office is usually based between Long Beach and Big Bear. We serve the communities throughout that corridor and surrounding areas, bringing professional tools, diagnostics and installation support directly to your RV, van, marina or storage location.
Ask Art if we can come to youLong BeachMarinas + coastal service
Inland corridorHomes, shops + storage
Big BearMountain + regional service
Los AngelesNewport BeachHuntington BeachIrvineAnaheimSan BernardinoRedlands
Nearby area? Call us. Travel and trip charges are confirmed by location before the visit.
06 Clear starting prices
Start with the right scope
Know the starting point before we arrive.
Every system is designed around the vehicle or vessel, available space, current equipment and the loads you want to run. These starting prices make it easier to plan the first conversation.
Phone consultation
A focused 15–20 minute call with Art to understand your project and the right next step.
On-site power assessment
A hands-on review of your RV, van or boat. Credited toward qualifying projects over $5,000.
Mobile electrical labor
Professional diagnostics, corrections and installation with a two-hour minimum appointment.
Troubleshooting
Electrical diagnostics for batteries, charging, inverters, solar and distribution.
Preassembled dinette power systems
Choose how much quiet power travels with you.
Every package is engineered, pre-connected and bench-tested by Big Bear Vans. The linked Vankea two-bench cabinetry set is currently $5,799 and is added to the selected electrical package.
LiFePO₄ capacity
600Ah
$12,500Preassembled electrical system- One 600Ah Vantrix LiFePO₄ battery
- 2,000W or 3,000W Vantrix inverter
- Most remaining power-bench storage
- Victron MPPT + DC-DC charging
- 12V fuse panel, breakers + protection
With $5,799 dinette$18,299
LiFePO₄ capacity
1,200Ah
$16,500Preassembled electrical system- Two 600Ah Vantrix LiFePO₄ batteries
- 2,000W or 3,000W Vantrix inverter
- Some remaining power-bench storage
- Victron MPPT + DC-DC charging
- 12V fuse panel, breakers + protection
With $5,799 dinette$22,299
LiFePO₄ capacity
1,800Ah
$20,500Preassembled electrical system- Three 600Ah Vantrix LiFePO₄ batteries
- 3,000W Vantrix inverter
- Power bench dedicated to the electrical system
- Victron MPPT + DC-DC charging
- 12V fuse panel, breakers + protection
With $5,799 dinette$26,299
Power-package and combined prices exclude shipping, taxes and final installation in the vehicle. Final scope and availability are confirmed in a written proposal. The 1,800Ah system uses the full electrical bench, leaving no storage in that bench.
Real Big Bear Vans project
07 Featured Class A conversion
The Wandering Solar Castle
A motorhome rebuilt for life beyond the generator.
This 2014 Tiffin Allegro Breeze 32 became a fully off-grid family motorhome. The original generator space under the front hood was repurposed for a high-capacity lithium power system—proof that a careful retrofit can transform how a Class A travels and lives.
20roof-mounted solar panels
2,550Wtotal solar array
50kWhlithium battery bank
10kWpure sine inverter power
08 Built by professionals
A better system starts with a better process.
Assess
We review your vehicle or boat, the equipment you want to run and how you actually travel.
Engineer
We size storage, charging and distribution as one balanced, protected system.
Build
Our electricians pre-wire and bench-test the system, then complete a precise installation.
Hand over
You get a clean walkthrough, clear controls and support from the team that built it.
Mobile service • Long Beach to Big Bear
Ready for power
that travels better?
Tell us what you drive, sail and want to power. We’ll help you choose the right next step.