Several people have posted using these successfully,
just measure your output needs against the max current input at the voltage you boost from. Even 12V @ 15A input may be sufficient for some...
Hi winem, thanks for sharing your modification and automation of the flatpack--
what I've understood is that you've been able to successfully set up the flatpak2 to do a proper CC / CV charging to this scooter battery? So you're able to make sure it's at 15A (or so) until it reaches 57.4V (or...