GOAL ZERO VENTURE 70 £170

With battery-powered gadgets increasingly forming part of the hillwalker’s kit, a means to keep them charged is essential on longer trips. This 19,200mAh power bank provides multiple charges of phones, cameras and other USB-powered devices via two high-speed ports; mini cables for easy charging of most devices are included. It is waterproof and rugged, designed to withstand unpredictable weather and tough going, and features an integral 65-lumen light.

VERDICT A reliable and convenient way to keep your essential hillwalking gadgets juiced up and functioning.