Household need

Power

Understand power banks, power stations, generators, solar charging and appliance runtime.

Power library

Guidance and tools.

Work out a sensible power bank size from the devices you need to charge, the energy they use and the output they require.

Size a portable power station around essential loads, expected use time and the separate limits for battery energy and output power.

Understand the difference between a battery's stored energy and the real duration of a device connected to it.

Keep useful ways to contact people and get updates when household power or communications services are disrupted.

Decide when a fridge needs backup power, how to check a suitable supply, and how to manage chilled food safely during an outage.

Compare a portable battery power station with a fuel generator for a UK household, including output, runtime, siting and safety limits.

Understand what a portable solar panel can charge, why its watt rating is not a daily energy promise, and how to check safe compatibility.

Estimate how long a battery could supply one device from Wh or mAh, voltage, average watts and explicit loss assumptions.

Estimate runtime for up to three loads, including duty cycles and optional continuous and startup rating checks.