How Long Will a 1000Wh Power Station Last?
A 1000Wh power station may run a 100W load for around 8.5 hours under illustrative assumptions, but real runtime depends on usable energy, wattage, losses, surge demand and duty cycle.
Appliance Runtime
Runtime and backup-power guides for fridges, freezers, boilers, broadband, home-office equipment and other common loads.
How Long Will a 1500Wh Battery Last During a Power Cut?
A 1500Wh battery might power a router and lights for many hours, but a heater or kettle can use its energy quickly. Learn how to estimate realistic runtime from appliance wattage, usable capacity, inverter losses and surge demand.
How Much Backup Power Does a Broadband Router Need?
A broadband router is usually a low-wattage load, but it may need to run for hours during a power cut. Learn how to check router watts, calculate battery runtime and size backup power for fibre equipment, phones and laptops.
How to Measure an Appliance’s Power Use Before Choosing Backup Power
Learn how to measure an appliance’s power use with a plug-in watt meter, interpret nameplate ratings, separate running watts from surge demand and improve backup-power runtime estimates.
Backup Power for a Gas Boiler During a Power Cut: What Size Supply Do You Need?
A gas boiler still needs electricity for controls, ignition, fans and pumps. Learn how to size backup power by checking running watts, surge demand, usable battery energy and the gas supply.
How Long Will a Portable Power Station Run a Fridge and Freezer?
Find out how long a portable power station can run a fridge and freezer, with practical guidance on usable watt-hours, duty cycle, compressor surge and measured appliance data.