Review on 🔋 Brand New Xantrex Prowatt SW2000 2000W True Sinewave Inverter Model #806-1220 - Enhanced Power Efficiency for All Your Needs by Ricky Bedell

In the reviews I see several complaints about problems with high load applications of this inverter. I bought this about a year ago to use for the solar powered air conditioner in my RV. I ended up getting it to work and the issues I had were unrelated to the inverter (which supplied a constant 1500W load and handled the AC start burst once I got everything else working). First the wiring: everything will tell you that 4 gauge should be more than enough: even close by. I tried 4 gauge. Then I tried track 0. Then I tried to make the wires shorter. Then I started doubling the wires in parallel. When I was done my battery connections were double and triple parallel 4 gauge and the inverter connection (coming from the 5 center battery) was 000 gauge (aka 3/0). Connection to the inverter terminals required using an industrial terminal block commonly used for substation wiring and drilling a 3/8 inch hole to connect it to the terminals. Drawing 125 amps. When they say a 4 gauge device can get over 200 amps what they mean is that it won't melt the wire rather than give you a usable voltage. can output a large amount of amps, but not without large voltage drops. In practice, for every amp you draw, you need at least 2 pounds of battery (so at least 4 size 27 batteries to provide the 125 amps needed for 1500 watts). Try to separate the heater from something that can be raised with help and all you'll hear is a bunch of annoying noises. And don't forget it after you've used half of the ampere-hours theoretically available in your batteries. , your *max* voltage drops to about 11.8 (allowing battery drain and power dissipation to operate from a lower base level). With 5 types out of 27, I couldn't run the original roof air conditioner for more than 1.5 hours before it became too weak to deliver 11.0 volts under load. So I found a way to install a modern, highly efficient device that offers the same cooling at half the power. The thing is that with a really big inverter you are pushing 12V to its absolute limits and you have all sorts of weak points that are preventing your system from working properly. They are really designed for large residential solar systems with over a thousand pounds of batteries. This inverter now works *fantastic* well with the rest of the system supporting it properly, but even for a seasoned electronics engineer getting it right was a learning curve.