Among the items the government’s Prepare campaign lists for power cuts and other emergencies are a battery or wind-up torch, a battery or wind-up radio, a portable power bank for your phone, and spare batteries. Below is what each of those does in practice, and how the options compare.
If you look after a building, a team or a household, this is written for you. It covers what official guidance says, what the kit actually does, and the numbers for reporting a power cut.
Why this matters this winter
The Met Office’s June update on the 2026 El Niño notes that it “can increase the likelihood of more unsettled conditions later in the year, including a higher chance of milder, wetter and windier weather during autumn and early winter.” The Met Office published this season’s storm names on 1 September.
The Cabinet Office’s guide to the National Risk Register 2026 puts the scale in context: “Most power cuts (or electricity outages) are short-lived and local, but longer outages of several days can occur with regional or national impacts.”
Two numbers for power cuts
105 is the free power cut number in England, Scotland and Wales. It connects you to your local network operator. In Northern Ireland, call NIE Networks on 03457 643643.
The Priority Services Register is, in the words of the Energy Networks Association, “a free service to help people who have additional needs”. Eligibility includes people who have reached state pension age, are disabled or have a long-term medical condition, or are pregnant or have young children. Network operators offer priority support in an emergency, and can tell customers who rely on their supply for medical reasons about planned power cuts. Northern Ireland has a similar Customer Care Register.
1. A torch
The Prepare campaign says to keep “a battery or wind-up torch (and spare batteries) at home”, and adds that “torches are safer than candles.” It also points out that you “probably won’t want to use the torch on your mobile phone as this will drain its batteries more quickly.”
The options fall into four types:
- Wind-up torches need no batteries at all. Our dynamo pocket torch gives up to 20 minutes of light from 1 minute of winding, uses two LEDs that never need replacing, and weighs 65g.
- Head torches keep both hands free, for example when resetting a trip switch or carrying something down a dark stairwell. The Energizer Vision 400 gives 400 lumens from 3 AAA batteries, is water-resistant to IPX4 and weighs 90g. For sites with hazardous atmospheres, ATEX-rated head torches are in the same head torch range.
- Lanterns light a whole room rather than a spot. The rechargeable COB lantern runs for up to 4 hours on high and has a USB output to charge other devices. The Energizer rechargeable lantern gives up to 1,200 lumens and 7 hours on high, is IPX4 rated, and also has a USB output.
- Lightsticks need no power and no switch. The Lumica military-grade sticks glow for approximately 12 hours, or 8 hours for some colours. The 30-stick wall box is a wall-mountable box “for emergency personal lighting in blackouts or evacuations”, with a tamper-proof seal.
2. A radio
The Prepare campaign lists a “battery or wind-up radio to get updates during a power cut”, noting that “a car radio can be used, however in severe weather it might be safer to stay inside.”
All three of our wind-up radios receive AM and FM, and all three charge by hand crank, solar panel or USB:
- The wind-up radio with power bank and torch plays for up to 8 hours, has a 2,000mAh battery, a 1.5W LED torch and an SOS alarm, can top up a phone through its USB port, and weighs 231g.
- The Universal wind-up radio also plays for up to 8 hours from a 2,000mAh battery, has three LED torch lights, and its built-in power bank can top up a phone, GPS, head torch or speaker. It is rated for -10°C to +60°C.
- The Duronic wind-up radio gives 20 minutes of play from 1 minute of winding and up to 7 hours from a full USB charge. Its USB port charges the radio itself, not other devices, and it has a headphone jack but no torch.
3. A way to charge your phone
The Prepare campaign lists a “portable power bank for charging your mobile phone”. The Energy Networks Association adds: “Keep a mobile phone fully charged so you can use it to go online for updates or call if you have a power cut.”
- Power banks store charge in advance. Our 10,000mAh power bank has two USB ports and will completely recharge most smartphones at least once. There are also 5,000mAh and 2,000mAh versions, and the Powertraveller Phoenix 90 at 22,500mAh for laptops and longer outages.
- An AA battery charger works when a power bank has run flat. Our emergency USB charger takes 4 AA batteries and outputs 5V at 800mA. Its limits: in our own testing it took an iPhone from 0 to over 50% on one set of alkaline AAs. Newer phones are more power-hungry, and it is designed for emergency top-ups, not daily charging.
One limitation of a power bank: it only holds what you put in it. A power bank that has sat in a drawer since last winter may be empty when you need it.
4. Spare batteries
The Prepare campaign lists “spare batteries for torches and radio and a backup battery for any medical equipment you rely on.”
The two differ in rated temperature range. Duracell Plus alkaline AA batteries are rated from -20°C to 54°C. Energizer Lithium AA batteries are rated from -40°C to 60°C, have a stated shelf life of 10 years, and weigh a third less than AA alkalines.
At a glance
| Item | Powered by | Stated runtime | Phone charging |
|---|---|---|---|
| Dynamo pocket torch | Hand winding | 20 min per 1 min winding | No |
| Energizer Vision 400 head torch | 3 × AAA | — | No |
| Rechargeable COB lantern | Built-in rechargeable | Up to 4 h on high | Via USB out |
| Energizer 1,200 lumen lantern | Built-in rechargeable | Up to 7 h on high | Via USB out |
| Lumica lightstick | Chemical, single use | Approx. 12 h (8 h some colours) | No |
| Wind-up radio with power bank and torch | Crank, solar, USB-C | Up to 8 h radio | Top-up |
| Universal wind-up radio | Crank, solar, USB-C | Up to 8 h radio | Top-up |
| Duronic wind-up radio | Crank, solar, USB | 20 min per 1 min winding; up to 7 h | No |
| 10,000mAh power bank | Pre-charged | — | Most phones at least once |
| AA emergency USB charger | 4 × AA | — | Emergency top-up |
At work
A power cut at work is a building problem as well as a personal one, and the same kinds of kit apply at a different scale:
- Head torches leave both hands free, for example for staff moving through stairwells or plant rooms. ATEX-rated models are made for hazardous atmospheres.
- Lanterns light a room rather than a path, and both of ours can charge other devices from their USB output.
- The lightstick wall box holds 30 sticks behind a tamper-proof seal. Its product page describes sticks that “can be safely handed out to guests in the hospitality industry, patients in care homes and hospitals/wards”.
- Power banks hold only the charge last put into them, and lose charge through use and slowly over time.
Three safety points from official guidance
Candles. The Prepare campaign is plain that “torches are safer than candles.”
Generators and fuel heaters indoors. The Health and Safety Executive for Northern Ireland warns that “using equipment such as kerosene heaters, charcoal grills (BBQs) and portable generators in doors can cause CO levels high enough to result in CO poisoning”, and that “only equipment designed to be used indoors should be brought inside the home.” Nothing in this article burns fuel.
Fridges and freezers. The Food Standards Agency advises keeping the doors closed. It says a fridge “should stay cold for up to 4 hours”, and that frozen food “should stay frozen for up to 48 hours in a full freezer (or 24 hours if it’s half full).” The Prepare campaign also suggests turning off irons, ovens, electric fires and fryers, and unplugging your TV and PC in case of a surge when the power returns.
For a longer look at what happens when a grid fails at scale, see our piece on the Iberian blackout of April 2025.
The short version
Among the items official guidance lists for a power cut are a torch, a radio, a way to charge a phone, and spare batteries. The options differ in how each one is powered, its stated runtime, and whether it depends on stored charge. Wind-up and solar models can be recharged without mains power.
We are a supplier, not an adviser. What you hold, and how much of it, is your decision. Our full range is under wind-up torches, radios, power banks, lanterns, lightsticks and batteries. If you are equipping a building or a team and know what you need, send us your specification and we will quote it.
Sources
- HM Government, Prepare — Power cuts — https://prepare.campaign.gov.uk/be-informed-about-hazards/power-cuts/
- HM Government, Prepare — Get prepared for emergencies — https://prepare.campaign.gov.uk/get-prepared-for-emergencies/
- Cabinet Office — National Risk Register 2026 — https://www.gov.uk/government/publications/national-risk-register-2026
- Cabinet Office — A Guide to the National Risk Register 2026 — https://assets.publishing.service.gov.uk/media/6a7c4412aadaaddf89b6e484/A_Guide_to_the_2026_National_Risk_Register.pdf
- Met Office — El Niño declared for 2026 as Pacific warms, 11 June 2026 — https://www.metoffice.gov.uk/blog/2026/el-nio-declared-for-2026-as-pacific-warms
- Met Office — Official storm names for 2026/27 revealed, 1 September 2026 — https://www.metoffice.gov.uk/about-us/news-and-media/media-centre/weather-and-climate-news/2026/from-family-tributes-to-shaun-the-sheep-official-storm-names-for-202627-revealed
- Energy Networks Association — Power cut — https://www.energynetworks.org/customers/power-cut
- Energy Networks Association — The 105 service — https://www.energynetworks.org/work/105-service
- Energy Networks Association — Extra help for customers (Priority Services Register) — https://www.energynetworks.org/customers/extra-help-for-customers
- NIE Networks — Customer Care Register — https://www.nienetworks.co.uk/help-advice/vulnerable-customers/customer-care-register
- Health and Safety Executive for Northern Ireland — Carbon monoxide dangers from heating appliances and generators used indoors — https://www.hseni.gov.uk/news/carbon-monoxide-dangers-heating-appliances-and-generators-used-indoors
- Food Standards Agency — Food safety in a power cut: advice for consumers — https://www.gov.uk/government/publications/food-safety-in-a-power-cut-advice-for-consumers/food-safety-in-a-power-cut-advice-for-consumers



















