Quote from: Intensity on August 10, 2017, 03:40:32 PM

You will send from your Electrum desktop computer, and the amount being sent will be taken from the three addresses. If I am not mistaken, your oldest coins come out first. The receiving Bitcoin address (Phone wallet, etc...) will combine the coins into one address/transaction. For example if you transfer $75 to your new address...

Address 1: $50 > New Balance 0
Address 2: $50 > New Balance $25
Address 3: $50 > Remains at $50

Receiving Address: $75

Hope this helps.

Thank you Intensity.

Yes, this is the simplest and maybe the better way.

We transfer, let's say 80$ to be sure to cover fees, from the Electrum desktop wallet to the mobile (phone) wallet which makes the transaction with the ATM machine.

But there is another way named «sweep».

If I understand, it consists about sweeping some address (let's say address 1 and address 2) from the Electrum desktop wallet to the mobile (phone) wallet.
It seems to be more secure than importing those address.

Is there someone in this community that knows about this process?

What are the advantages or disadvantages vs the simplest method of just transferring money a suggested by Intensity and, I understand now, by hubballi?

How do we do it?
Is it the Electrum desktop wallet that sweep a part, in my example 2 address of 50$ each, to a BTC phone app, or,
is it the BTC phone app that asks some address (here 2) to be swept from the Electrum desktop wallet?

And, what is your favourite BTC phone app?