Plan power for the things that matter

Backup power is the prep people overspend on. A huge generator for a household that needs to charge a phone and run a CPAP is the wrong tool; a tiny power bank for a household that wants to keep a freezer cold is equally wrong. The plan is to list what actually needs power, size the source to it, and understand the difference between surge, continuous, and total energy. This page covers how to think about it without buying the wrong thing or overspending.

List what needs power, by priority

Start with the essentials: phones and a radio for communication, a CPAP or other medical device if applicable, a small light, and maybe a refrigerator for a short outage. Rank them. A phone charger is a tiny load; a fridge is a big one with a surge when the compressor kicks on. A whole-house AC unit is a different conversation entirely and rarely worth the cost or the fuel.

For each item, know the wattage (continuous) and the surge (the startup draw, often 2–3x for motors like fridges and pumps). A power station that can't handle the surge will just trip and shut off. Look at the label on the device, or look up the model's spec sheet online. The backup-power planner tool does the math: watts times hours gives watt-hours, minus efficiency losses, gives the battery you need. It's an estimate, not an electrical design — but it's the right estimate.

Be honest about duration. Keeping a phone charged for a day is one budget. Keeping a fridge cold for a week is a different, much bigger one. Most households need the first, not the second. If you regularly lose power for a week, the calculus changes; if you lose it for a day or two, a power bank and a small power station cover it. Don't buy a generator for a once-a-year, six-hour outage.

Separate the critical from the convenient. A phone is critical — it's communication. A laptop for work may be critical or may not. A TV is not. A fridge full of food is worth saving for a short outage; for a long one, the plan may be to eat the food before it spoils rather than to power the fridge for a week. Prioritize by what actually matters, not by what you'd plug in on a normal day.

For medical devices, talk to the equipment supplier about power needs and runtime. A CPAP has a specific power draw; an oxygen concentrator has another. The supplier knows the specs and the backup-power requirements. Don't guess on medical equipment — get the real numbers and plan around them. The power plan for a household with a CPAP is different from one without.

Pick the right source

For a phone, a radio, a light, and maybe a laptop: a power bank (10,000–20,000 mAh) and a small portable power station (300–500 Wh) cover it. They recharge from a wall or a car, they're silent, they're safe indoors, and they need no fuel. This is the right answer for most households. A $200 power station and a $30 power bank handle the common outage without noise, fumes, or safety risk.

For a fridge, a well pump, or a CPAP through a long outage: a larger portable power station (1,000–2,000 Wh) or, for repeated multi-day outages, a generator. Generators run on gas, propane, or diesel, and they belong outside — never indoors, never in a garage, never near a window — because of carbon monoxide. They need fuel stored safely and a transfer switch installed by an electrician if you're backfeeding a house. The safety bar is real and non-negotiable.

Solar panels extend a power station's runtime by recharging it during the day. Realistic expectations: a small folding panel won't run a fridge, and it needs sun. A 100W panel in full sun produces maybe 400–600 Wh over a day — enough to top up a power station, not enough to run a major appliance. It's a supplement for long outages, not a primary. For most, a charged power station plus a small solar panel is the practical setup.

Match the inverter type to your load. Modified sine wave inverters are cheaper but can damage some electronics (especially motors and some medical devices). Pure sine wave is what you want for anything that matters. Most portable power stations use pure sine wave; if you're buying a standalone inverter or a generator, check. The wrong inverter can ruin a CPAP motor.

Don't forget the charging plan. A power station is useless if it's at 0% when the power goes out. Keep it charged, top it off every few months, and know how you'll recharge it during an outage (car, solar, or a neighbor's generator). A power station you never charged is the one that's dead when you need it. The maintenance page covers the charging habit.

Store and maintain it

A power station stored at 0% for a year may not come back. Lithium batteries degrade if stored fully discharged. Keep it charged (most hold a charge for months but should be topped off every few months), and keep the batteries for your flashlights and radio separate from the 'toy' stash. Check the whole power setup on your maintenance schedule.

If you have a generator, store fuel safely in approved containers, rotate it (gas goes stale in 3–6 months; use fuel stabilizer for longer storage), and run it periodically so it works when you need it. A generator that's sat for three years is the one that won't start in an outage. Follow the manufacturer's maintenance schedule — oil changes, spark plugs, air filter. The generator is the most maintenance-heavy piece of prep equipment.

Keep the power station's manual and know its limits. How many watt-hours does it hold? What's the surge rating? How long does it take to recharge from the wall vs. the car vs. solar? The manual has the answers; read it before the outage, not during. The specs tell you what it can and can't do, and the mismatch between expectation and reality is the most common power-prep failure.

This is planning guidance, not an electrical design or a medical-device certification. For a medical device like a CPAP or oxygen concentrator, talk to the equipment supplier about backup-power requirements and runtime — they know the specifics. The plan here is: know your loads, size the source, and maintain it. Don't treat a blog page as a substitute for the device manufacturer's guidance.

Test it once. Charge your phone from the power station. Run the fridge for an hour from the generator. Know that it works before you need it to work. The test is the prep — it's the difference between 'I think this will work' and 'I know this works.' A power station you've never used is a guess; a power station you've tested is a plan.

This is planning guidance, not emergency advice. In an emergency, call 911. See a mistake? Report it.

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