It does, but it’s nice to have the power on demand. A 40A fuse wont necessary blow at 40A or even higher than 40A, depends on time/temperature as well as current. Some people say 40A is sufficient for a pack like this, but I disagree and have the wounds to prove it. I’d personally replace it with a bigger 60-80A fuse, but there’s barely any space in the enclosure as it is, or remove the fuse altogether if you want to risk it, which is what I’ve done.
That said, I was using this setting for weeks without ever blowing the fuse. It was only when I pushed the board hard, by 0-100 acceleration that it blew.