British Airways will foot the bill for sending on any uncharged electronic device to passengers prevented from flying with them under new regulations.
But Virgin Atlantic Airways' passengers will have to pay if they need to have their uncharged devices forwarded.
The two carriers, and other UK airlines, are advising passengers to arrive at airports with devices fully charged as laid down by the new rules.
BA said that passengers should arrive in good time at check in and also at the boarding gate, as there could be extra checks.
BA said: "We have in place a range of options if customers are not able to comply, when requested, with the new regulations.
"Customers can ask to be rebooked on to a later service. If you wish to carry on the item as part of your hand luggage, you will need to ensure that the device can be charged ahead of your rebooked flight.
"Alternatively, customers can leave the device behind and hand it to a member of our customer service team. You will be asked to complete a form and the item can be collected on your return to Heathrow or forwarded to an address of your choice."
Virgin Atlantic said it was texting all passengers to advise them of the new arrangements and that it had charger facilities available at airports for all the most popular devices.
A Virgin spokeswoman said: "Passengers not complying with the regulations can choose not to fly and can be booked in, free of charge, on a later flight once their device is charged.
"They could choose to fly and leave their device with a handling agent, with the device being sent on to a chosen address, with the customer having to pay for this."
