Replacing power cord - surgeX innards

Hello - Picked up a cheap surgex unit, and planning to replace the damaged power cord.

Questions:
Any massive current storage in these units that I need to be wary of?
For the shielded replacement cable, do I just sort of gather up the shielding and attach to the ground nut?

Thanks!

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The advice with any unknown is to assume worst case. Although it is unlikely anything will be charged you also have to think what if it is faulty and a resistor or something is open...

It is only a minutes work to stick a meter across the caps and see. Those yellow caps (if they are across L and N) are typical of the ones that can bite unexpectedly if there is no discharge path for them.