Backup power, worked out for Australia
Keep the fridge cold and the lights on when the grid goes down.
Guides to portable power stations for blackouts, cyclone season, caravans and camping. Everything is sized in watt-hours with the sums shown, using the specs the makers publish for Australia.
Start here
Runtime and watt-hour calculator
Free calculator: list your appliances in watts and hours to get daily watt-hours, the battery size you need, how long a given power station lasts and its start-up surge.
Read guide → Blackout backupBlackout and cyclone power station guide
How big a portable power station you need for a Queensland storm or cyclone blackout, with a worked watt-hour budget, recharge options and the safety rules.
Read guide → Buying and chargingCaravan and camper sizing
Size a portable power station for a caravan, camper trailer or tent with three worked watt-hour examples, 12V port limits, recharge times and the 230V inlet rule.
Read guide → Buying and chargingEcoFlow vs Bluetti vs Anker SOLIX
EcoFlow DELTA 3 Plus vs Bluetti Elite 100 V2 vs Anker SOLIX C1000, plus Jackery, compared on Australian specs: solar input, charging speed, UPS and weight.
Read guide → Blackout backupRunning a fridge in a blackout
How long a power station runs a fridge in a blackout, worked out from its Energy Rating label, plus start-up surge, running it in shifts and food safety limits.
Read guide → Buying and chargingSolar panel pairing basics
How to match solar panels to a portable power station: input voltage and current limits, series or parallel wiring, heat and cold, and realistic refill times.
Read guide → Blackout backupCPAP on a power station
How many nights a power station runs a CPAP in a blackout, using ResMed's wattage figures, plus the 12V DC converter, humidifier and life support register.
Read guide → Buying and chargingLiFePO4 vs NMC batteries
LiFePO4 or NMC in a power station? Makers' cycle ratings side by side, what the weight gap really looks like now, and how each chemistry handles heat and faults.
Read guide →Where our numbers come from
Battery sizes, outputs and solar limits come from the Australian product pages and manuals published by EcoFlow, Bluetti, Anker SOLIX and Jackery, and every page links them. Safety advice comes from Australian regulators, fire services and health departments. We don't quote prices or make up runtimes: we show the sum so you can redo it with your own appliances. Some links may earn us a commission. They don't decide what we say.