well. i did find this. https://www.amazon.com/Inverter-Controller-Frequency-Charger-Lithium/dp/B0BCVHQ2R7/ref=sr_1_1?crid=3J9JFTPSRVY2I&keywords=60v%2Binverter%2B2%2Bphase&qid=1686893287&sprefix=60v%2Binverter%2B2%2Bphase%2Caps%2C87&sr=8-1&th=1
it looks like a inverter/charger all in one. has decent but few reviews so chancy.