Almost half of those surveyed said that if their mobile phone died they would only be able to remember three phone numbers - and more than 70% said they would give up having pudding after a meal in order to have a fully charged smartphone for a month.
Kevin Malinowski, a spokesman for mophie, said:
Millions of people rely on their smartphones daily to stay in touch with loved ones and do work on the move.
But all of these activities hinge on a single factor: having enough juice to keep the phones running.
More top news
Scotland wanted every child to have a 'named person' to look after their welfare regardless of their family situation.
A man who launched a savage attack on his partner and another on the mother of his children minutes later has admitted two counts of murder.
The pilot of the missing MH370 plane plotted a course to the southern Indian Ocean on a home flight simulator, investigators have said.