Slow cooker: how much battery you need1
Slow cooker draws about 200 W (200 W range), runs 60% of the time and uses 960 Wh per day. Start-up surge: 200 W.
Estimate for a 6-quart cooker on low; a cheap way to cook through an outage.
Battery needed
| Hours | Wh | Battery (Wh) | Inverter (W) |
|---|---|---|---|
| For 8 hours | 320 | 485 | 221 / 200 |
| For 24 hours | 960 | 1455 | 221 / 200 |
| For 72 hours | 2880 | 4364 | 221 / 200 |
Open in calculator with this appliance →
Stations that fit (24 h)
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FAQ
How many watts does a Slow cooker use?
Typically 200 W while running, with a range of 200 W depending on model and age. Start-up surge can reach 200 W.
How long will a 1000 Wh power station run a Slow cooker?
About 5.5 hours on the clock, allowing for the 60% duty cycle, inverter losses and a 20% reserve.
What size power station do I need for a Slow cooker overnight (8 h)?
About 485 Wh of battery and an inverter rated at least 221 W continuous with 200 W surge.
Can I run a Slow cooker on solar during an outage?
You need roughly 640 W of panels in winter to replace a day's use (960 Wh), charging through a station with a big enough MPPT input.
Other appliances
1 Approximate values: estimated from motor or heater power and typical figures published online, not from a manufacturer chart. Check your appliance label.
Inverter efficiency 88%, usable depth of discharge 90%, reserve 20%. Full method: How we calculate.