Rebuilding 48v controller for 20S

Basic goal: 20S thru this 48V controller

It's as pictured. The thru-hole caps are rated 50v - 62v. Do all of these need to be upgraded? I'm changing the 12 MOSFETs with something similar spec as the IR 4110 if those are unavailable.

What else might need to be changed?

What voltage are you going to charge to for 20s? Can be quite a range depending on what chemistry and what HVC you use.

What else might need to be changed?

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Potentially the dropping resistors on the low-voltage power supply input.

NCA chemistry, charging to 80 - 82 V, 4.0 - 4.1v / cell.

How would I go about finding the low voltage power supply input? What am I looking for on the board?

It would probably end up cheaper just to buy a 72V controller for under $50.