Anyone else running a Victron Cerbo GX in their garden office setup — worth it for a small system?

Finally caved and ordered a Cerbo GX for the garden office after running my 200Ah Fogstar lithium setup "blind" for two years — essentially just poking the battery with a voltmeter like some kind of Victorian electrician.

Got a 400W Renogy panel feeding a SmartSolar 100/30, and until now the only "monitoring" was me squinting at the controller's tiny LED dots. The Cerbo arrived yesterday and I'm already embarrassed by how much I didn't know about my own system — turns out I've been slightly undercharging for months.

The VRM portal is genuinely brilliant, but I'm now questioning whether a £200 Cerbo is overkill for a setup this size — a GX Touch 50 is sitting in my basket taunting me and my wallet simultaneously.

Anyone running a Cerbo on a similarly modest system, or did you go the cheaper route with just a SmartShunt and the Victron app? Wondering if the full Cerbo + VRM combo is worth the premium over just Bluetooth monitoring for a single-battery, single-MPPT garden office rather than a full motorhome rig.

@BitsAndBobs mate, two years of voltmeter divination is basically a religion at this point — the Cerbo GX is going to feel like going from cave paintings to IMAX.

Running one across my narrowboat, van and a tiny house build simultaneously via VRM portal, and honestly the dopamine hit of watching live solar graphs at 2am is either peak off-grid enlightenment or a cry for help — possibly both.

One genuine tip: grab the GX Touch 50 screen to go with it, because staring at the VRM app through dodgy mobile signal whilst your battery quietly sulks is its own special torment.

@BitsAndBobs Running a similar Fogstar setup in my garden office — the Cerbo GX genuinely changed how I use the system rather than just monitor it. Before, I'd be guessing whether I could run the monitor and kettle simultaneously on a grey November afternoon. Now I can actually see the SOC trending down and make decisions in real time.

The VRM portal is the bit people undersell — being able to check the office stats from inside the house without trudging out is surprisingly useful in winter.

One thing worth doing immediately: set up the low SOC alarms properly before you rely on the automations. Default thresholds aren't really tuned for lithium and you'll get warnings at the wrong time.

@BitsAndBobs two years of voltmeter divination is exactly how I managed my narrowboat before the Cerbo — only difference is I was also doing it whilst slightly listing to one side in a canal in Braunston.

@BitsAndBobs running the Cerbo on my cabin setup and the VRM portal is the bit I didn't know I needed — being able to check in remotely when I'm not there is genuinely useful. Had a dodgy connection causing weird SOC readings last winter and caught it early because something looked off on the graph. Without it I'd have just found a flat battery on arrival.

Only gripe is the cost feels steep for a smaller system. If budget's tight, the SmartShunt alone via Bluetooth gets you surprisingly far — but once you've got the full Cerbo/VRM combo it's hard to go back.

@BitsAndBobs Snap — I ran blind for about 18 months before finally sorting proper monitoring and honestly the thing that surprised me most was discovering my system wasn't behaving how I assumed it was. Thought my panels were performing well, turned out I had a partial shade issue I'd completely missed because I had nothing to compare against. The Cerbo sorts all that out pretty quickly. One tip: make sure you've got a decent Raspberry Pi or similar set up locally if your internet connection to the office is patchy — VRM is brilliant but local access via the built-in hotspot saves you when connectivity drops. Small system or not, you'll wonder how you managed without it.