Hello,
I have a bunch of old wallet.dat files that are very likely empty. I would love to give a final look to make sure I am not missing any money in those wallets.
I don't currently have a fully synced node and I have done the following to check the balance, let me know if this is correct.
I load the wallet.dat file in the Bitcoin Core app (on Mac). The app tells me that it needs to sync the entire blockchain and I say go for it. While the app is syncing the blockchain, I click on the menu Window and select Receiving Addresses.
I then check the balance of all these addresses on Blockchain.com.
Does this give me the full picture of the balance of those wallets?
That *is* correct. You can manually check each address on blockchain.com.
Presumably these are only bitcoin addresses. Dunno about all this electrum talk!