One of the most upsetting things about smartphones is the battery life. In fact, many people buy external chargers because it is usual charging the smartphone twice or three times during a day. According to Sanderson (2014) in 2018 external power adapters and chargers market will increase to 9 USD billion.
Regarding this situation, KFC in India develops an amazing packaging campaign, the ‘Watt a box’. It is a food box that charges your mobile phone besides to keep the food warm. Take a look. Is it useful?