Inverter load test

I mentioned "sinopoly" a couple times in the video, I meant sigineer, sorry about any confusion.

This is a "7500W" inverter board from china, it can do 7500w but only if you give it 50VDC and 150 amps, unfortunately, my batteries were around 44.3V at the time when I was pulling about 140 amps, which means I am limited to 6200 watts, but as the batteries deplete, that power level will go down since the limitation is the 150 amps. (inverter sellers are never up-front about this
(You may have figured out that if I was outputing 240V at 23.7amps, then my output is 5688 watts, which means my effieciency is about 92%)

This inverter board is from here:
https://www.aliexpress.com/item/Free-shipping-7500AV-W-DC48V-60V-to-AC220V-pure-sine-inverter-board-uninterruptible-power-supply-solar/32690382015.html

it has been slightly modified to accept a different controller module than the one it came with (so I can get 60hz)
https://www.aliexpress.com/item/Pure-Sine-Wave-Inverter-SPWM-Board-EGS002-EG8010-IR2110-Driver-Module/32659771087.html

Here is the transformer I used, but I got it at a much cheaper price for some reason, it was an unbelievable deal for me! (I got it from amazon and got free shipping too!)
https://www.amazon.com/gp/product/B007IBYBEK/
At the time when I got it, it was listed for 235USD, it was the last one at the time.

If you want a powerful inverter that works on 48v of lithium, I recommend this one:
http://store.evtv.me/proddetail.php?prod=12kw

If you have tesla modules and want to build your own power wall, a BMS is highly encouraged, if you want to use the existing tesla BMS, then I recommend this kit to get you going:
http://store.evtv.me/proddetail.php?prod=basicsmodulecontroller

The controller is semi-open source, the EVTV one is based on this
https://github.com/collin80/TeslaBMS --- use this one for latest code and branches from other people.
There was schematics for older versions, but they were taken down for some reason. I made a branch of the code and re-uploaded the schematics.
https://github.com/joelclemens/TeslaBMS

The oscilloscope made from garbage is actually an x-minilab from gabotronics I got years ago to help me build my own EVSE.
http://www.gabotronics.com/development-boards/xmega-xminilab.htm

Видео Inverter load test канала Joel Clemens