My 48v tsdz is 14a max, however I have no idea what current is drawn in any of the 4 assist modes. I use 12s 2p, I have 2 batteries I use. A LG hg2 6ah and a Moli P42a 8.4ah.
For a tiny 1s set up one will really need to use a 25/30a cell with 21700, one will only find the 50s is likely the...