Phones
Tablets, laptops and dongles
SIMs and Tariffs
Accessories and more
Flexibility
Perks
Services
Connected
Live bigger with Volt
See all the reasons to choose O2
Help and support
Most popular
Useful links
Contact us
You should charge the phone battery regularly to ensure that your phone is always ready for use.
Connect the charger to the socket and to a wall socket.
When the battery charging icon is displayed, charging is in progress.
When the phone is turned on, you can always see the battery power level. The battery icon shows the remaining battery power.