Abstract
The battery lifetime is one of the most important factors in product qualities of mobile devices such as mobile phones, MP3 players, PMP. It is used to be displayed by a 'battery bar' icon with uniformly divided three or four blocks. However, several manufacturers of mobile phones have assigned uneven time ratios to each battery block because they believe that it can make users feel more long in battery lifetime. In this study, two experiments were performed. The first is to verify the effects of the uneven time ratios in each battery block on users' cognitive awareness of battery lifetime. The second is to investigate whether the compatibility between battery displays and actual time ratios affects the users' time perceptions. The results show that as low battery bar is maintained for a long time, users tend to be aware of the battery lifetime shorter. On the contrary, maintaining full battery status longer does not affect the users' time perception. These results can be applied as the guidelines for determining proper time ratios in designing the battery bar indicator of mobile devices.
| Translated title of the contribution | The effects of time ratios and shapes in battery indicator of mobile devices on users’ time perceptions |
|---|---|
| Original language | Korean |
| Pages (from-to) | 27-33 |
| Number of pages | 7 |
| Journal | 한국HCI학회 논문지 |
| Volume | 6 |
| Issue number | 1 |
| DOIs | |
| State | Published - May 2011 |