Desktop PC + monitor: how much battery you need
Desktop PC + monitor draws about 200 W (100–500 W range), runs 80% of the time and uses 1280 Wh per day. Start-up surge: 300 W.
Gaming rigs under load hit 400–600 W; office PCs 80–150 W. A UPS for clean shutdown plus a station for work time is the usual split.
Battery needed
| Hours | Wh | Battery (Wh) | Inverter (W) |
|---|---|---|---|
| For 8 hours | 427 | 647 | 221 / 300 |
| For 24 hours | 1280 | 1940 | 221 / 300 |
| For 72 hours | 3840 | 5819 | 221 / 300 |
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Stations that fit (24 h)
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FAQ
How many watts does a Desktop PC + monitor use?
Typically 200 W while running, with a range of 100–500 W depending on model and age. Start-up surge can reach 300 W.
How long will a 1000 Wh power station run a Desktop PC + monitor?
About 4.1 hours on the clock, allowing for the 80% duty cycle, inverter losses and a 20% reserve.
What size power station do I need for a Desktop PC + monitor overnight (8 h)?
About 647 Wh of battery and an inverter rated at least 221 W continuous with 300 W surge.
Can I run a Desktop PC + monitor on solar during an outage?
You need roughly 854 W of panels in winter to replace a day's use (1280 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. source