The “low battery” warning is one of the great bugbears of the smartphone generation. But it won’t be for much longer if a Chinese battery manufacturer has its way.

Dongxu Optoelectronics has developed a battery called the G-King which reportedly recharges within 15 minutes.

Their secret? Graphene. The battery is constructed from the wonder material and could be deployed in smartphones, tablets and laptops.

But the manufacturer also believes the breakthrough could have significant consequences for the development of electric cars, which are currently held back by lengthy recharges.

Dongxu claims that the 4,800mAh capacity battery, the size found in a table or compact laptop, can be discharged and recharged 3,500 times, which is approximately seven times more than a typical lithium ion battery. 

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