David Williams: Jump start the day with Ring

Want to get to know your neighbours better? Get a battery rescue pack; it’s surprising how often you’ll get a knock on the door on cold days.

Portable devices that jump-start flat batteries usually have the car up and running again in minutes.

The new PowerPacks from Ring also serve as a power-source for music players, tablets and phones via their built-in USB or 12V sockets. There are five units in the range, split between three standard PowerPacks and two high-capacity PowerPacks. The crocodile clips are insulated to minimise the chance of a shock, and reverse polarity displays prevent harmful battery damage. £114.99 up to £159.99.