

Start Your Off-Grid Adventure This Year & Save Up To
60% OFF
Get your campervan off-grid quickly and easily when you buy one of our expert designed solar kits today.
Designed By Victron Experts


Start Your Off-Grid Adventure
This Year & Save Up To
60% OFF
Get your campervan off-grid quickly and
easily when you buy one of our expert
designed solar kits today.
Designed By Victron Experts
BEST SELLERS
SHOP BY APPLICATION
SHOP BY COMPONENT
⭐⭐⭐⭐⭐
Very helpful and good customer service nothing was a problem for them. Will definitely recommend, we fitted 1 batteries to our caravan replaced the old led battery much more power and every light weight for camping
Great service and tech advice when selecting, buying and installing a solar panel on my shed for charging cordless garden tools up!! Be Green!
One of the best shop in UK with unbeatable prices and lightening fast delivery. Definitely my first choice looking for Victron Energy products!!! Thank you!!!
World class service, individual needs dealed with the highest attention
Above and beyond service , upgraded free of charge, full instructions and wiring diagram, fast delivery, a benchmark for all companies
Callidus has provided me with a five star service for all three separate purchases I have made with them they have provided me with a Good product at a great price. Thanks

WHY CHOOSE US
Expert Designed Solar Kits for Every Need
Callidus specialises in solar kits crafted by in-house experts for motorhomes, off-grid setups, and other applications. With detailed solutions for campers, sheds, and more, these kits are easy to select and install.
Unbeatable Value with High Quality Components
We only sell trusted components and brands like Victron Energy. Hand selected for quality by our team of in house experts and engineers. This ensures top-notch quality at competitive prices.
Customer Centric Service and Fast Delivery
Callidus Engineering prioritises customer satisfaction with next-day delivery options and a high customer satisfaction rating. Expert advice and support make the buying experience seamless.
Let customers speak for us
from 48 reviewsConnected up the leisure battery’s they now on trickle charge for the winter
Perfect
Great product and fantastic company to deal with. Will be a returning customer.
Lovely company friendly staff great product
Saving me money on energy from grid what’s not to like
Very quick.
Victron Battery To Battery Charger 30A – 12/12 Orion-Tr Smart – Non-Isolated DC-DC Charger
I am in the process of preparing all the kit I will need for my Sprinter come campervan
Hope to
Trade again
Many thanks. Geoff
Callidus (or “Callouses” as spell check tries to make me type!) fulfilled my order quickly and efficiently at a very reasonable price. What’s not to like?
Great company , paid online , they let us know it was being dispatched next day and what day to expect delivery. Well packaged and super service 👌
Highly recommended, fast and efficient delivery
Nice kit but could really do with some help with the rest of my build 😁
It’s an amazing inverter easy to install and powerful.
Shame they wouldn’t deliver to Northern Ireland. Had to be imaginative
Great piece of kit, excellent value for money (purchased while on offer) great delivery even though we purchased between Christmas and New Year.
Being installed next week
nice compact unit, love the bluetooth feature
great performance
Very rarely is a company this efficient and competent ! Excellent in every way !
Sold By Us, Sent In By You





Case Studies
- Choosing a selection results in a full page refresh.