In the past, it was rarely used for anything other than powering the onboard cigarette lighter; today, it’s an indispensable source of power for countless electronics, including our smartphones.

For anyone with an older car who relies on 12V outlets to power their devices, these handy gadgets promise useful upgrades without breaking the bank.

Every day, countless family arguments arise on the subject of who gets to charge their device on the move. Sometimes a car just doesn’t have enough power sockets to go round, and that’s why ...