Keep in mind that those caps are only rated for 16V. So it's fine for using with a 1/10 ESC on 2-3S, but for a 1/8 ESC on 4-6S you will need caps rated for higher voltage.

You need to have a little overhead in the voltage the caps are rated for compared to the voltage the ESC is rated for. So if the ESC is max 4S use 25V caps, if the ESC is max 6S use 35V caps. You can run 25V caps on a 6S max ESC, but only if you are 100% sure you'll only be running 4S lipos with it. It just makes more sense to use 35V caps in case you ever decide to try a 5-6S lipo.

The reason for this is because running caps close to or at their max rated voltage can significantly reduce their lifespan, and increase the likelihood of failure. I see in your signature you have the Xerun ESC in an E-maxx, so even if you are using 4S that cap bank you linked isn't rated high enough.