HTC One X+

O2 has the urged mobile industry to quit selling smartphone charges with new handsets after a successful trial.

The UK mobile operator has revealed the results of a three month long pilot scheme in collaboration with HTC. Called the 'charger out of the box' initiative, it saw the One X+ smartphone sold without the USB charger normally bundled. Visit Group test: what's the best smartphone?

O2 expected 70 percent of customers who bought the charger free One X+ to not purchase a separate charger. In fact, a total of 82 percent opted not to get a charger.

Ronan Dunne, CEO of O2, said: "The results of the trial demonstrate a clear willingness among consumers to consider and respond to the environmental argument for taking a phone charger-free.  I now hope that as a result of this study the rest of the industry will now consider joining us in our campaign to take chargers out of the box for good."

O2 estimates that there are 100 million unused chargers in the UK – enough to fill four Olympic swimming pools. The firm plans to stop selling any chargers with new phones by2015.

With the vast majority of smartphones using the microUSB standard instead of proprietary connectors, there's much less need for every new device to come with its own charger.

Phil Roberson, Regional Director of the UK at HTC, said: "This pilot demonstrates that, if we inform our customers about the environmental impact of wasted phone chargers and the benefits of using the chargers and mains adapters that they already own, they respond positively to the message."

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