If you use EGO tools (e.g., lawn mowers), then you can use your batteries to create a solar station (via the EGO POWER+ Nexus Escape 400-Watts Portable Power Station) to provide power when the grid is down or unavailable. The power station can charge while it is providing power. Any solar panal can be used. I mention RevoPower which provides converting from MC-4 DC to USB-C PD 100W. Make sure you use a USB-C PD 100W cable. I used one from J5Create.
