A blackout kit matters because outages cascade fast. The fridge warms up, the internet goes down, your phone battery drops, and normal routines become harder. If you live anywhere with storms, heat waves, winter weather, or an aging grid, a simple blackout kit is one of the easiest preparedness wins you can make.
The goal is not to build a bunker. It is to stay safe, informed, and comfortable for at least 24 hours, with a better target of 72 hours if you can manage it.
What a blackout kit should do
A good blackout kit should help you handle five problems at once:
- See in the dark
- Charge or conserve your phone
- Keep food and medicine from spoiling
- Stay safe without using risky heat or fuel sources indoors
- Get updates when the internet or cable goes out
The core blackout kit checklist
1. Light
Start with more than one light source. Flashlights for each person, extra batteries, rechargeable lanterns, and headlamps all help. Avoid depending on your phone flashlight as the main source of light. Phones are too valuable to drain quickly when you may need them for alerts or emergency calls.
2. Power and charging
Your kit should keep at least one phone charged and one backup device ready. Pack a fully charged power bank, charging cables, and a car charger if you have access to a vehicle. If you want short-term continuity for a router, modem, or desktop, a small UPS can buy time and give electronics a clean shutdown window.
A surge protector helps guard against spikes, but it does not provide backup power. A generator can help with longer outages, but only if it is used correctly outdoors and away from doors and windows.
3. Food and water
Keep food simple and shelf-stable. Bottled water, nonperishable food you already eat, a manual can opener, protein bars, tuna packets, nuts, crackers, and pet food if needed are all good basics. Ready.gov also advises keeping refrigerator and freezer doors closed during an outage, which matters more than most people think.
4. Medicine and medical needs
If anyone in your home depends on electricity or refrigerated medication, the blackout kit needs a medical section. Keep backup batteries for medical devices if applicable, a written medication plan, and contact information for your pharmacist, provider, or device supplier. Do not wait for a storm to learn what backup you need.
5. Safety items
Power outages create predictable hazards. Keep a battery-powered carbon monoxide alarm, a first aid kit, a fire extinguisher, a portable radio or hand-crank radio, work gloves, and a written phone list. Never use a generator, grill, or camp stove indoors.
6. Comfort and basic sanitation
Long outages are easier when the basics are covered. Add blankets or cooling towels, wet wipes, hand sanitizer, trash bags, toilet paper, spare cash in small bills, and copies of IDs and insurance cards in a waterproof pouch.
Surge protector, UPS, or generator?
People often lump these together, but they do different jobs.
- Surge protector: helps guard electronics from voltage spikes
- UPS: keeps a device running briefly on battery power during an outage
- Generator: provides longer-term backup power if used correctly outdoors
For most homes, the best setup is layered. Use surge protection for sensitive electronics, a UPS for short interruptions and safe shutdowns, and a generator only if you truly need extended backup power.
How to build the kit without overbuying
You do not need to buy everything at once. Build it in three passes.
Fast start
Buy the basics first: flashlights, batteries, water, shelf-stable food, a power bank, and a radio.
Home upgrade
Add a UPS, a better lantern, extra charging cables, and a carbon monoxide alarm if you do not already have one.
Long outage prep
Add medical backups, pet supplies, extra cash, and a generator only if your household actually needs it.
How often to check it
Review your blackout kit every six months. Replace expired food, test batteries, recharge power banks, update medications, check cords and bulbs, and refresh water and cash. A kit is only useful if it still works when the outage hits.
FAQ
How long should a blackout kit last?
At minimum, plan for 24 hours. Better yet, build for 72 hours.
Is a surge protector enough for a blackout?
No. It helps with surges, but it does not provide backup power.
Do I really need a generator?
Only if you need longer backup power for essential devices or long outages. If you buy one, learn the safety rules first.
What gets forgotten most often?
Batteries, charging cables, cash, and a way to get alerts when the internet is down.
Sources and notes
- Ready.gov power outage guidance
- CPSC generator and carbon monoxide safety
- CPSC winter power outage safety release
- Eaton explanation of surge protector vs UPS