What our customers say

Installed the MultiPlus-II in our Class A motorhome. Craig at Jonsson Tech walked me through the wiring twice over the phone — once before I ordered and once during install. System has been rock-solid for 14 months across two cross-country trips.

We refit our 42-foot sailboat with a complete Victron system — MultiPlus, BMV-712, SmartShunt, Cerbo GX, and four 200Ah lithiums. Best decision was buying from Jonsson Tech instead of cheaper online shops. Actual answers when I called, not just order confirmations.

Ordered a Quattro 5000 plus battery monitor and shunt. Arrived in 3 days even though the Quattro was technically out of stock — Craig was honest that it would ship from the Houston warehouse. When I had questions configuring it for my off-grid cabin, support emails came back within hours, not days.

First Victron build for my Sprinter van conversion. Was about to over-buy on the MPPT — Jonsson Tech actually talked me OUT of the bigger model and explained why the 100/30 would handle my panel array fine. Saved me $80 on the unit and probably another $100 in wiring I would have needed for the bigger one.

Replaced my old converter with the Orion-Tr Smart 12/12-30A. Documentation Jonsson Tech sent with the package was honestly better than Victron's own setup guides for first-timers. Wiring diagram showed the EXACT fuse sizes I needed. Up and running in 90 minutes.

Bought the Epoch 460Ah for our off-grid workshop. Heated lithium has been bulletproof through two Texas winters. When I had a Bluetooth pairing issue, Jonsson Tech jumped on a phone call and walked me through Epoch's app step by step. Service like this is why I came back for the second battery.

Upgraded my system monitoring with the Cerbo GX MK2 and the GX Touch 50. Both shipped the next business day from Houston. The Touch 50 mounted perfectly with the bracket they sent — never had a vendor include the right hardware without me asking before.

Mixed system — Renogy panels with Victron MPPT and Quattro. Jonsson Tech is one of the few sellers who carries both brands AND understands how to make them play nice together. Helped me through the SmartSolar settings for the panel specs. Wouldn't go anywhere else for the next build.