Aquarium: how much battery you need
Aquarium (filter + heater, 100 L) draws about 80 W (40–150 W range), runs 60% of the time and uses 1152 Wh per day. Start-up surge: 100 W.
The heater dominates in winter; the filter alone is 5–15 W and keeps fish alive for days.
Battery needed
| Hours | Wh | Battery (Wh) | Inverter (W) |
|---|---|---|---|
| For 8 hours | 384 | 582 | 88 / 100 |
| For 24 hours | 1152 | 1746 | 88 / 100 |
| For 72 hours | 3456 | 5237 | 88 / 100 |
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Stations that fit (24 h)
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FAQ
How many watts does a Aquarium (filter + heater, 100 L) use?
Typically 80 W while running, with a range of 40–150 W depending on model and age. Start-up surge can reach 100 W.
How long will a 1000 Wh power station run a Aquarium (filter + heater, 100 L)?
About 13.8 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 Aquarium (filter + heater, 100 L) overnight (8 h)?
About 582 Wh of battery and an inverter rated at least 88 W continuous with 100 W surge.
Can I run a Aquarium (filter + heater, 100 L) on solar during an outage?
You need roughly 768 W of panels in winter to replace a day's use (1152 Wh), charging through a station with a big enough MPPT input.
Other appliances
Inverter efficiency 88%, usable depth of discharge 90%, reserve 20%. Full method: How we calculate. source