Not sure what size and type of fuse to the battery. Have 2 206ah batteries and read confusing advice. Some say only a T fuse, others say an ANL is fine. Also not sure what size. Have 2/0 cables connecting batteries to a 400 amp bussbar and from there a fused 2000w inverter. I know the bussbar is probably overkill, would you do like a 300 fuse on the battery? It's a12v setup