We are using a clone MPP, Vevor 24v 3000w, I decided against using the built in MPPT (due to no low temp cutoff on my battery, winter temps can sit well below 4c for a while) instead I used a Victron 100/15 (Victron Battery sense for the low temp cutoff) and 4x100w panels in 2s2p gives well above the required 5+ volts early in the day to kick off charging, and with a 100ah battery we can do 2 days fully off grid with no solar, to note we have an 800w water heater, induction job 1000w and a 1500w air fryer, all running on 240v, no gas. Fridge runs on 24v, worst I ever get to in 24 hours is about 50% SOC with no solar. I've yet to fit a B2B patiently waiting on Victron making a 12/24v XS, I'd like to be able to connect up a Cerbo if we go all in over time
I've run this close on the limit of 2500w for multiple hours cooking and had no issues, the van is used nearly every weekend and 2 weeks touring Scotland and the isle of Skye last year with zero issues!
All in the cost was about £1000 (inverter, battery, solar, MPPT, cables, and other bits needed) and it's lasted us 18 months, it's a campervan and also used as a part time daily driver, about 10,000 miles in that period.
Other than the high idle usage of the Vevor it's been flawless, I took it apart it a bit and extended and swapped the on/off switch into the van so I can turn it on/off much more easily.
I use the hook up at my house to prechill the fridge and heat a tank of water occasionally in winter to reduce the load on the battery but that's more about me enjoying using the van than a necessity.
If it's a really sunny day I'll heat the water in the afternoon knowing the solar will put that all back in a couple of hours, a very crude solar dump.
Only thing I've never done is try to run all the electrics off the hook up at the same time, battery has 100amp BMS so I know I can't run all the major drains at the same time, and I've no real need to do that either.
In conclusion my cheap stuff works as well so far as the more expensive victron stuff, I really like the ease of use of the victron bits we have and will add those I think add value over time, B2B being the next addition, although for what we use the van for it's not really necessary. A Cerbo would be a nice addition, but only if we add a multiplus!
I'd love a multiplus but the 24v ones are pricey compared to the 48v kit here in the UK about £400 more expensive, my main concern is the inverting and mains charge/pass through I've no room for more solar and no requirement for A/C.
