Emergency mobile phones used by hikers, sailors or mountaineers cannot be charged by plugging into mains electricity. Consequently the only chargers that will work are those that use renewable energy. Two possible types are shown below. These are relatively compact and light weight and can be packed away and stored taking up very little space. In an emergency situation the chargers could also be used to charge up batteries that could then be used in torches or radios.

1. The wind-up charger. This simply plugs into the phone using a jack plug or other connector. Winding up the charger provides the phone with enough power so that it can be used as the winding takes place. When the phone is not being used the batteries are charged by turning the handle.

The symbol opposite represents the wind-up charger. However, the mobile phone manufacturer has rejected it on the grounds that it is not stylish.

Using box ‘A’ sketch a rough version of a new or similar symbol that is stylish, imaginative and interesting and represents the wind-up charger.
In box ‘B’ produce a colour rendered version.

2. The solar charger seen below can be used by attaching it to the outside of a haversack. Whilst the hiker walks it charges up the battery, inside the phone (if connected to the phone). It can also be used to charge up batteries that can then be used in torches or radios etc....

The symbol opposite represents the solar charger. However, the mobile phone manufacturer has rejected it on the grounds that it does not reflect the clean nature of this type of energy.

Using box ‘A’ sketch a rough version of a new or similar symbol that emphasises the clean nature of solar power.
In box ‘B’ produce a colour rendered version.