High Sustained amp battery AliExpress for CYC photon pro?

Hello all!

I'm thinking about doying a build with the new CYC photon pro with my bike. I want to be able to ocasionally use close to the peak power of the kit (3000-4000w).

I was thinking about using the CYC battery, but out of curiosity went looking for alternatives.

There are a lot of listinha with UE stock that, If true, seem to have the required specs, some 60/72V for exemple.

The thing is, can I really thrust the specs? Can the BMS really provide 90 continuous amps?

Or should I run away from these batteries?

Thanks!