Backup at home
The essentials, when the lights go out.
Identify the appliances you want to keep powered, their consumption and the runtime you need. Computer or medical equipment continuity requires checking specific compatibility; a battery does not guarantee that all equipment stays on during a power cut.
Do you need runtime or to prevent a restart? Check both →Portable battery or generator: backup differences
| Factor | Portable LiFePO4 station | Traditional petrol generator |
|---|---|---|
| Indoor use | No combustion; follow the manual's ventilation, temperature and usage conditions | ✕ Fatal carbon monoxide hazard (outdoors only) |
| Noise level | Depends on the model's load and fans | Combustion engine; check declared noise and operating conditions |
| Maintenance | Follow the manufacturer's charging, storage and inspection instructions | ✕ Filters, oil changes and fresh petrol |
| Continuity during a power cut | EPS/UPS depending on model; check transfer time and compatibility | Depends on the start-up and transfer system; do not assume immediate backup |
For example, the EcoFlow DELTA 2 manual describes 30 ms EPS and restricts use with equipment needing 0 ms switching. Check your model's manual before entrusting it with a critical load.
Stations to consider for your loads
EcoFlow DELTA 2
Check the model's data and output limits against the appliances you need to power.
A new-condition offer for this model still needs checking.
Anker SOLIX C1000
Check the model's data and output limits against the appliances you need to power.
A new-condition offer for this model still needs checking.
EcoFlow DELTA 2 Max
Check the model's data and output limits against the appliances you need to power.
A new-condition offer for this model still needs checking.
Bluetti AC200MAX
Check the model's data and output limits against the appliances you need to power.
A new-condition offer for this model still needs checking.
These amounts do not establish a current offer. Confirm final price, availability, variant and conditions with the seller. Some links may generate a commission if a purchase meets the relevant programme's conditions.
Home emergency battery FAQs
Will my computers or router switch off during a power cut?
This cannot be guaranteed for all equipment. An EPS or backup function may have a transfer time that causes a restart. Consult the station manual and your computer, NAS or router requirements, and confirm compatibility. The EcoFlow DELTA 2 manual describes 30 ms EPS and excludes equipment requiring 0 ms switching. Powering the router does not guarantee that the operator's network continues working either.
Can it be used safely indoors?
A battery does not need to burn fuel in use, but that does not mean every use is safe. Follow the model manual for ventilation, temperature, humidity, placement and load limits. Do not use a combustion generator indoors. For medical equipment, consult its requirements with the equipment manufacturer and your healthcare professional.
Can it power a household fridge-freezer?
It can if the output and inverter support the fridge's load and start-up. Runtime depends on your model's consumption, temperature, compressor cycle, losses and other loads. Use label consumption or a measurement as a reference and calculate a margin. A battery estimate does not guarantee food preservation.
Does a station guarantee a night's use of my CPAP?
No. Consumption changes with model, humidifier, heating and supply. Confirm compatibility, adapter and backup requirements with the medical equipment manufacturer and your healthcare professional. Estimates on this website are not a guarantee of therapy continuity.