1. What do you need to keep running?
Pick your devices
Tap everything you want powered at the same time.
For how long?
Rough guide using typical draws. Check the wattage on your own labels, and motors briefly draw more at start-up.
See your top pick ↓Your top pick
2. The three sizes
Compact
Phones, router and a few lights through a night or two.
- Easy to carry; good first unit.
Mid size
Router, lights, laptops and a blanket, or a fridge part of a day.
- Best balance for most homes.
Large
A longer device list, or a fridge for about a day. Often expandable.
- Pair with solar for multi-day outages.
Also check the rated output in watts. It must exceed everything you run at once. Solar input is worth having if an outage could run for days.
3. Brands to compare
All sell in Canada or the US. Compare capacity (Wh), output (W), warranty and price per Wh on the maker's page. We do not list prices because they change often.
Well known brand with a Canadian store. Wide range from compact to home backup sizes.
- Has a Canadian store
- Small, mid and large models
- Compare capacity, output and warranty on the maker page
Covers Canada and the US. Often competitive on capacity for the price.
- Value-focused lineup
- Solar kits available
- Confirm shipping, duties and warranty at checkout
Large capacity lineup, including expandable systems.
- Broad capacity range
- Expandable home-backup options
- Compare battery chemistry and stated cycle life
Fast charging and expandable systems. Compare solar input specs.
- Markets fast charging, so compare charge times
- Expandable systems in larger sizes
- Check solar input specs
Runtime calculator and typical loads
Runtime calculator
Typical loads (check your own labels)
| Device | Typical draw | On 1,000 Wh at 80% |
|---|---|---|
| Wi-Fi router and modem | about 10 to 20 W | roughly 40 to 80 hours |
| Phone charging | about 5 to 20 W | many full charges per day |
| LED lights (a few) | about 10 to 30 W | roughly 25 to 80 hours |
| Laptop | about 45 to 90 W | roughly 9 to 18 hours |
| Electric blanket | about 50 to 100 W | roughly 8 to 16 hours |
| Space heater (1,500 W) | 1,500 W | about 32 minutes |
| Refrigerator | varies, see the EnergyGuide label | use the label's daily kWh |
Generator or power station?
Fuel generators can run bigger loads for longer, but they need fuel and they must run outdoors. Never run a generator, camp stove or barbecue inside a home, garage or tent. Carbon monoxide is odourless and can kill. A power station has no exhaust. For most households that only need to keep a few essentials going, a power station is simpler and safer. If you need to run a furnace, well pump or large appliances, talk to a licensed electrician about a proper transfer switch or inlet.
Guides on this topic (33)
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