USB-C charging from a 12V socket Some newer 12V chargers also offer ... as a faulty charger could cause too much power to be sent to your phone, either at the wrong voltage, wattage or amperage.

The case has a USB-C socket in the base, meaning you can insert a conventional charger and top up both the phone’s battery and the one inside the Swippitt Link if you’re away from home.

And an iron can use up to 720 times more power during operation than is needed for a mobile phone charger. As a guide, you should only load one plug socket with a maximum of 3,000 watts. But it might ...