This is another popular question among the candidates and performance was fair.  Most candidates were able to state the disadvantages of not charging a newly purchased phone battery before use.  However, few still demonstrated poor language expression.  For instance causes permanent damage to the “phone” instead of “battery”.
 The significance of phone casing was well handled.
            The expected answers are:
                        (a)        -           It shortens the life span of the battery
                                    -           Some battery may have gone flat and may not power the phone
                                    -           May cause the phone to malfunction due to low voltage
                                    -           Total call time duration is shortened
                                    -           May cause permanent damage to the battery
                        (b)       Phone Casing
                                                -           it beautifies the phone
                                    e.g.      Protects the phone:                                        
                                                -           main board;
                                                -           screen from damage;
                                                -           when it enters water;
                                                -           battery/speakers etc. from accidental short circuit/fall off;