Hello
@ProphetZarquon , sorry for my slow response here.
For now, Dorado 21700 505L/18inch 48V 25Ah/52V 20Ah is confirmed to be maximum upgrade option for Dorado mounting system.
Some Frey riders already tested the 48V 25Ah and 52V 20Ah mostly with 6pin discharging port and Reention 3pin charging port.
Shanshan Tech just released Canon1&2 for the coming China Cycle Fair 2022 in May.
Canon 1 can hold max 13S7P 91pcs 21700cells, for 48V 35Ah.
But it is frame mounted or rear mounted, not compatible with Dorado.
It is newest and shall be biggest ebike battery on the market.