The Charger Tariff Calculator takes into account the average cost and wattage of charging smartphones, tablets and laptops from 0-100% battery life. Gocompare.com Energy has launched the Charger Tariff Index , which reveals the true cost of charging smartphones , tablets and other devices from zero to 100 % . For example , if someone had charged their phone 25 times , using 7.5 pence of electricity , they would need to charge it another 266 times before owing enough to buy a 45 g bar of chocolate ( £ 0.80 ) . Ben Wilson from Gocompare.com Energy said : " Hopefully this fun tool will give people an idea of just how little their generosity is costing them . "
Gocompare.com Energy has launched the Charger Tariff Index , which reveals the true cost of charging smartphones , tablets and other devices from zero to 100 % . For example , if someone had charged their phone 25 times , using 7.5 pence of electricity , they would need to charge it another 266 times before owing enough to buy a 45 g bar of chocolate ( £ 0.80 ) . Ben Wilson from Gocompare.com Energy said : " Hopefully this fun tool will give people an idea of just how little their generosity is costing them . "