lifePO4 UPS - Testing inverter and APC UPS

I bought a cheap pure sine wave inverter to compare it versus using a modified APC UPS. The APC UPS works pretty well in all my testing, including a 24hour load test, but it runs really hot, so some cooling is in order. Link to inverter in video https://s.click.aliexpress.com/e/_9zO8yH Link to batteries used in this portable powerwall https://s.click.aliexpress.com/e/_9ycRwd https://s.click.aliexpress.com/e/_AFWXdL