Review on Off-Grid Pure Sine Wave Power Inverter - 5000W Peak, 15000Watts, 24V DC To 120/240VAC Split Phase With Battery AC Charger For Solar Energy - Low Frequency For Maximum Efficiency by Darryl Buck

We connected this to our solar panel system in our RV and it has been a pain to have to constantly manage the settings and modes.Our RV came with a small 12v setup and we upgraded it to include a 48v system that will power both lines. We have 16k panels input and 300ah battery set up and we cannot charge/top off the battery pack and run an air conditioning unit, even plugged up to 30 or 50 amp without the unit cutting off as a fault, even by lowering the battery feed to almost nothing. And when the sun is high and a full charge is going into the 48v system and the device is set to run as the priority, we have to turn on an AC unit because there isn't enough power pull to register (10%) and keep it on, it just charges the battery. Hubby is a BSEE and has designed more than one system. This is his first time with this product and he has been messing with this for a couple months but since he can't tweak the settings, he has to get up in the middle of the night to turn it back when it kicks off. We finally just uncoupled it and we only use it with the solar panels.Tech support was responsive but basically told him what he already figured out - no way to adjust the settings values.Would not recommend for anything more complicated than a single input system. Failed for our multiple input 48v setup. Shopping for a better mousetrap now.