Victron Energy MultiPlus-II 2X Pure Sine Wave Inverter Charger for 120 amp Battery, 120V, 3000VA 12-Volt

Worth the wait! I love it, it does what it claims. Fridge runs from RV park to RV and back to home with no issues. Runs without shore power for days on 400 Amp lithium batteries. Run (1) A/C unit and you will get 6 hours or so. Then recharge with outside source (Generator, Solar, or shore power) and back to normal.

After my furrion mppt solar controller failed twice under warranty I decided to cut my losses. Installed Victron 3k multi plus inverter, Victron mppt solar controller, Victron energy cerbo gx and Victron gx touch 50 to power my fifth wheel via two 300ah Epoch lithium batteries and two 370 watt solar panels. . This set up is well worth the money and is working flawlessly. We now can run our trailer for hours without shore or generator power. Way cool. GO SOLAR!!

This inverter/charger was easy to install and configure and is working great in my Class A motorhome.

Can’t beat this inverter for a solar setup

This is top shelf Solar equipment. Great management software. Excellent support

Be sure to do your research and watch plenty of videos.The unit works flawlessly, but you absolutely must do your research before installation.

Unfortunately, I experienced a reportedly common failure in which the Victron continuously trips the GFCI on any pedestal our outlet used to charge the 5th wheel trailer. In usergroups, I found a large number of USA users experiencing this identical problem. I contacted Victron by email several times, without any resolution. Reportedly, European outlets are designed to trip at 30-40mA, while US GFCIs trip at as low as 4mA. So, after spending a dozen hours carefully installing and grounding this Victron, and 20 hours troubleshooting, I had to spend 3 or 4 hours removing it, reboxing it, and returning it. FYI, I elected to instead purchase a EcoFlow power station. A very different approach, but for a similar amount of money received additional LiFeP battery capacity, portability in which I could potentially charge other devices, and built-in 110V, 12V, and 5 V outlets. I love the EcoFlow, and wish I had done this instead of the labor intensive install and debug for the Victron. However, lots of other users love their Victron! I just never could get it to work, and essentially all pedestals or outdoor outlets will be GFCI.

I like to boondock in my RV (camping at places without hookups) but I wanted to run my 110v appliances like the TV and microwave off my 12v batteries when shore power wasn't available. In previous RVs I've jury-rigged different products together to be able to do that, but I had to manually switch over to the inverter when off-grid and then remember to manually switch back when connected to shore power. Every time I would switch, the appliances would see a momentary loss of power and lose the time and any other settings they had. With the MultiPlus-II it's all automatic, so as long as the battery has some juice in it the appliances never see a loss of power. In addition, it does some neat tricks like PowerAssist, where if you're plugged in to a low power outlet (like a typical home 15A circuit) if the electrical demand is higher (like for a 20A air conditioner) it will supply the full 15A from the home circuit, then add whatever more power is required from the battery. All seamlessly automatic, from inside the RV you don't notice any change, things just work. I can also monitor what is going on using my cell phone, and can even make some small configuration change from it.A couple of improvements I would like see: the terminals for the 110v in and out are difficult-to-use push terminals, I would much rather have nut-and-bolt connections like they use for the 12v lines. It doesn't have bluetooth built-in, you have to buy an adaptor - for the price of this unit it should be built-in. Programming the unit requires a different adaptor and needs to be done from a laptop - I would prefer to be able to fully program it using a built-in bluetooth connection. Also, it makes an annoying buzz when in battery charge mode - I don't know why, I've had many battery chargers and none of them buzzed...That said, I'm very happy with the unit and would recommend it to anyone looking to upgrade their RV 50A system for boondocking.