When one of the world's most popular smart phones was released some time last year, tech giant Apple has admitted in an announcement that a small number of iPhone 5s units needed to be recalled and replaced due to battery problems.

Today, users of the seventh generation iPhone apparently seem to have a run-in with the same problem. The most recent battery-draining-crisis might seem like a deja vu to the users of Apple's popular smartphone.

Although the highly-coveted phone has overall been massively successful, there are a few hiccups that Apple enthusiasts will have to endure for the moment.

Apple has initially designed its latest update to the iOS7-- the iOS 7.1, specifically to enhance the performance of an iDevice, promising a more seamless experience for the user supposedly without compromising battery life.

However, many were largly dissapointed when some iPhone 5s users that updated to iOS 7.1 noticed significantly shorter battery life-- some have even allegedly experienced a drainage rate of about as much as thirty percent of the battery's life in an hour's time while the phone was used with a normal to moderate scale of activities.

Whilst this bug has no official fix yet, for now, iPhone 5s users will have to resort to alternative ways of keeping their phone's batteries alive.