V9 Capacitor (C1) Mod Feasibility?

I’m working on doing some development with G2 and a web based interface (similar to chilipeppr), and have been looking at my hardware to get a test machine going. The smallest machine I have on-hand for a test platform is an older CNC that uses custom Vexta OM steppers wired in bi-polar series with 4 leads. The motors actually only draw 1A/phase (4.4v, 4.4 ohm), but because of their configuration, have a higher impedance value in the order of 30.8 mH. Now looking at the TI DRV8825 stepper motor drivers, they can handle 8 to 45V. Their ideal configuration w/ proper cooling would be driving motors w/ 24v @ 2.5A. Now of course, you couldn’t up the voltage if you’re drawing current on the higher range, but what about increasing voltage on motors with lower current draw. It’s hard for me to follow what is connected to what on the board, but the main capacitor C1 (by the Power Supply input) is using a 35v 470uf aluminum electrolytic surface mount cap. The same manufacturer provides those capacitors in higher voltages with the same capacitance (up to 80v I think). If I wanted to use the 48v power supply that normally drives those steppers, would it be possible to swap out that cap with say, their 63v 470uf version? I realize I may be getting silly here not thinking about other factors and components, but hopefully someone whose mind isn’t clouded with bundles of code and various hardware can chime in.

Thanks