Boyu · Battery / AC-DC
S-1800 AC/DC Air Pump
- Air output
- 8 L/min
Keepers in areas with regular power outages who want aeration to carry on without them.
1 model
Dophin · Battery / AC-DC
Dophin BP-189 AC/DC Air Pump
A small mains air pump with battery backup, so the air keeps running if the power cuts out. Output is 0.5 L/min.
Updated
0.5 L/min1 model
Will it suit my tank?
litres
Best for
Keeping a sponge filter running through short power cuts in a small tank.
Worth knowing
Only 0.3 m maximum depth, so it will not push air to the bottom of tall tanks.
What stands out
- AC mains with DC battery backup
- 0.5 L/min
- 1.5 W
- Rated up to 120 litres
Specs
| Model | Air output | Power | Tank size | Dimensions (L × W × H) | Max depth | Pressure |
|---|---|---|---|---|---|---|
| BP-18955 0097 | 0.5 L/min | 1.5 W | 30–120 L | 10 × 7 × 5 cm | 0.3 m | 0.008 MPa |
- Brand
- Dophin
- Power
- 230 V AC, DC battery backup
Figures from the maker's published specifications. Makers revise products, so check the current figures before buying. Photos supplied by the brand or its distributor.
Compare with
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S-1801 Lithium AC/DC Air Pump
- Air output
- 8 L/min
Load-shedding and power-cut backup for a single tank.
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SunSun · Battery / AC-DC
CQ-B Rechargeable Air Pump
- Air output
- 12–16 L/min
Larger tanks and fish rooms that need backup aeration.
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SunSun · Battery / AC-DC
YT AC/DC Rechargeable Air Pump
- Air output
- 8–100 L/min
Backup aeration for fish rooms and big tanks where a power cut is a real risk.
10 models
Frequently asked questions
Quick answers about the Dophin BP-189 AC/DC Air Pump, drawn from its specs.
What size tank is the Dophin BP-189 AC/DC Air Pump for?
The maker rates it for tanks up to 120 L (from 30 L).
Who is the Dophin BP-189 AC/DC Air Pump best for?
Keeping a sponge filter running through short power cuts in a small tank.
Is there anything to watch out for with the Dophin BP-189 AC/DC Air Pump?
Only 0.3 m maximum depth, so it will not push air to the bottom of tall tanks.
What are the alternatives to the Dophin BP-189 AC/DC Air Pump?
Other air pumps worth comparing: Boyu S-1800 AC/DC Air Pump, Boyu S-1801 Lithium AC/DC Air Pump, SunSun CQ-B Rechargeable Air Pump. Add any of them to the compare table to see the specs side by side.