I setup a Medalla-Geth-Node and a Eth-2 node (Teku) and went through all the steps in the launch pad. My status went from "Deposited" to "Pending" and currently the beaconchain-explorer says "estimated activation in 12 days". Can I power down my computer in the meantime and turn it back on shortly before activation. I dont want to waste electricity. Or will I loose my spot in the activation queue?