If you’re on EE you can now get a free power charger, simply by by texting ‘POWER’ to ‘365’ to receive a promotional code. The code can be redeemed at any EE store across the UK.

Each Power Bar typically gives one full smartphone charge per use, according to EE. Offer applies to contract customers, and even PAYG customers who’ve been fronting up for more than 3 months.

In a rather neat touch, EE will replace your discharged power bar with a fully-charged one at any of their branches. Unless you’re near a festival, obviously.

Texts cost 35p – Broadband customers must text JOIN plus your EE landline number to 60005 and follow the instructions provided. Even non-EE customers can join in, for the princely sum of £20.

In return you’ll get a 2600mah rechargeable EE Power Bar that’s good for 500 charges and includes an LED torch.