comments:
krysmopompas posted on r/minilab4d
https://a.co/d/05zxZZQR I can’t vouch for any others, but that one seems to just be a bare battery bank without any other features, for almost the same price. One of the other nice things about the wallecube is that it has usb for monitoring (but it’s only supported out of the box with unraid at the moment.) I think anything with dc input can be charged with solar, it’s just a matter of getting the correct voltage and amperage.