I've had one for about a year. PV1800 VMPK (3kW, 24V).
So far, no issues. Except the fan noise. I used to keep it inside, here I keep it outside, so it's not an issue :·)
Good sine wave, even under load. I must say I use ~100Wh 95% of the time, but I do use it for heavyish loads sporadically.
Hi Don, thanks for the info.
I am considering the MUST PH1800 Pro 5.2kw or similar instead of a AC coupled system with a Victron Multiplus and Fronius Grid Tie Inverter.
Also considering this one. (pv3500-pro-series)
PV3500 PRO series is a multi-function inverter ,combining functions of inverter and MPPT solar charger controller, solar charger and battery charger to offer uninterruptible power support. The comprehensive LCD display offers user-configurable and easy-accessible button operation such as battery...
www.mustess.com
1 question, can you run them with Lifepo4 batteries??
I didnt see any reference to Lifepo4 only Lead acid, Gel and AGM.
The 48V models usually support parallel operation, so an idea would be to have two 3kW ones in parallel for... redundancy, basically. If one goes down (you never know) you have the other while you get a replacement.
LFP, if you use it to charge the batteries, it's just a matter of setting the correct parameters (basically Max Voltage - I set it to 27.8 for 24V).
I do have LFP batteries. -