The Ultimate Off Grid Power Experience
ABC Upfitters provides PREMIUM upfitting services to RV customers who are looking for the ultimate off-grid power experience. By using Mastervolt components, ABC can provide an UNMATCHED level of integration and quality.
What Do You Camp In?
WHAT OUR CUSTOMERS ARE SAYING
We would highly recommend ABC Upfitters. We own a Thor Tranquility 19L and wanted to add more battery (from 400ah to 800ah) and made a trip to Elkhart while we were visiting family in Michigan. Their team accommodated our tight time frame very well and the cost was in line with our expectations. Communication throughout was responsive and professional. Pre and post work walk throughs explained some of the problems we were having and how they would be resolved, as well as the inner workings of our electrical system. Now we have ample battery for our off-grid mountain bike trips.
– Cassandra M.
I rarely get impressed with customer service nowadays, but you guys are the bar that others should measure themselves against. I appreciate you and hopefully, one day, I can return the kindness you have shown.
– Roy M.
A big thank you to ABC Upfitters. We traded in our 400ah battery and they installed two 460ah batteries. This will be very beneficial during the summer in Texas. We turned the AC on high, with lights and the fridge running, and we had over 10hrs of battery life!! They even cleaned up some lose connections and made a few other repairs for us as well. They are a great, “down to earth” team and very easy to work with. I highly recommend them if you’re looking to do a battery upgrade
– Justin B.
Connect with ABC Upfitters
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We Went ALL-IN: 24kWh Battery Bank + 7k Inverter | Off-Grid Beast Mode
OFF GRID POWER
AS EASY AS ABC
Here at ABC Upfitters, quality and integrity are not just values, they’re the cornerstone of everything we do.
We do installations at our shop in Elkhart, Indiana, located just South of the RV Hall of Fame.
Click the button below to take a look inside of our shop
Our partners
We want to take a moment to say thank you to all of our customers. Your trust, support, and referrals mean more to us than you know.
Quick heads up: we’ll be operating with a skeleton crew through the holidays, so responses and turnaround times may be a bit slower than usual. On the plus side, it looks like Mike’s lost a little weight. 💀
Thanks for your patience and for being part of the ABC Upfitters community. … See MoreSee Less
5 CommentsComment on Facebook
Happy Holidays!!
Don’t worry we know you’re “boning up” for 2026. 💀
Merry Christmas!
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🎥 New Video is Live!
Mike walks through a Thor Sanctuary 19L that just left our shop after receiving the Jacked Up package 🔌⚡️
This van is now fully ready for serious off-grid travel with:
• 920Ah of lithium battery capacity
• 250A secondary alternator for fast, reliable charging on the road
• 25A MPPT solar controller to keep the batteries topped off
In the video, Mike explains what was added, why it matters, and how everything works together in a clean, serviceable install. If you’re curious what a properly designed power upgrade looks like in a 19L, this one’s worth a watch.
👉 Watch here:
www.youtube.com/watch?v=FmcU2IXzttY
If you enjoy these walk-throughs, please like the video and subscribe to our YouTube channel — more system breakdowns and installs coming soon! … See MoreSee Less
1 CommentComment on Facebook
So, you're saying you turned it into a Batterymobile!
Just a little snapshot of what we get to do every day here at ABC Upfitters — clean installs, thoughtful details, and customers who leave ready to travel off-grid with confidence.
We’re proud of the work we do and even more proud of the people who trust us with their rigs. From coast to coast, you’ve come to us for turn-key power systems done the right way, and we don’t take that lightly.
Thanks to every customer who’s made the trip and become part of the ABC family. If you’ve been on the fence, this is what it looks like when it’s done right. … See MoreSee Less
3 CommentsComment on Facebook
Did you put the system under the Murphy bed in that No Boundaries?
We love our system! Ours is the 5th wheel in the overhead shot. The work was professional and the communication before, during and after the install was top notch and made us comfortable investing in our system. They even suggested replacing our 2 Coleman Mach AC’s with the Chillcubes and that would make our system perform even that much better…we took their advice and replaced them both, what an energy saving difference that made. Thank you again!!
I can't wait to bring ours to ya this summer!!