Re: How does Electrum decide from which of my addresses the BTCs are sent?
As far as I can see its always the addresses with the biggest amount. Here 444444.
Not aways, it depends on the amount.Here's a similar scenario created in testnet:
| UTXO: | 0.0028tBTC output amount: | 0.001tBTC output amount: |
 |  |  |
Quote from: thoste
Why ?
Electrum is prioritizing "privacy" on its coin-selection before "efficiency".This comment in Electrum's coinchooser.py script (that) explains it in a nice way: github.com/spesmilo/electrum/blob/master/electrum/coinchooser.py
Bonus if you can read python since you can check "why" right there.