Both store electricity and power your devices when the grid can't. But they're designed for different jobs.
Portable power stations
A portable power station is an all-in-one box: battery, inverter and sockets. You charge it from a wall socket, a car or solar panels, and plug devices straight into it.
- Capacity: typically 250–2,000 Wh
- Best for: camping, vans, outdoor work, and powering essentials during short outages
- Advantage: no installation, take it anywhere
Home backup batteries
Home backup systems are larger and often expandable with extra battery modules.
- Capacity: typically 2–10+ kWh
- Best for: keeping key household circuits running during longer outages, and storing solar energy
- Advantage: more capacity and higher output power
Some larger units are still plug-and-play (you plug appliances directly into them). Others are designed to connect to your home's wiring.
Important: connecting to your home's wiring
If you want a battery to power your home's circuits, not just devices plugged into it, you need a transfer switch or suitable connection installed by a qualified electrician. Never feed power into a home socket with a double-ended plug. This is extremely dangerous, both for you and for grid workers.
Comparison
| Portable power station | Home backup battery | |
|---|---|---|
| Capacity | 250–2,000 Wh | 2–10+ kWh |
| Mobility | Carry anywhere | Mostly stationary |
| Installation | None | None or electrician |
| Expandable | Sometimes | Usually |
| Typical use | Outdoors + short outages | Longer outages + solar storage |
Which one should you choose?
- Short outages, travel, camping: portable power station
- Keep the fridge, lights and internet going for a full day or more: home backup battery
- Both: many households combine a large home battery with a small portable unit
FAQ
Can a power station work as a UPS?
Some models offer pass-through or UPS modes. Check the switchover time if you plan to protect computers.
Can I use solar panels with both?
Most modern units support solar input. Check the maximum input voltage and power. To size your system, read How much battery capacity do you need for a power outage?