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-188 AC/DC Air Pump
A rescue air pump with a rechargeable 6 V 4.0 Ah battery. It switches to battery by itself when the mains fails and recharges once power returns.
Updated
2 L/min1 model
Will it suit my tank?
litres
Best for
Anyone in an area with regular power cuts who wants filters and livestock kept oxygenated.
Worth knowing
It is bulky (18 x 16.5 x 7.7 cm) and the sealed battery will need replacing eventually.
What stands out
- Automatic switch to battery on power failure
- Recharges itself when mains returns
- 2 L/min on mains
- Can also take 4 dry cells
Specs
| Model | Air output | Power | Tank size | Dimensions (L × W × H) | Max depth | Pressure |
|---|---|---|---|---|---|---|
| BP-18855 0012 | 2 L/min | 6.1 W | 120–230 L | 18 × 16.5 × 7.7 cm | 0.5 m | 0.016 MPa |
- Brand
- Dophin
- Battery
- 6 V 4.0 Ah rechargeable, or 4 dry cells
- Switchover
- Automatic
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.
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- 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-188 AC/DC Air Pump, drawn from its specs.
What size tank is the Dophin BP-188 AC/DC Air Pump for?
The maker rates it for tanks up to 230 L (from 120 L).
Who is the Dophin BP-188 AC/DC Air Pump best for?
Anyone in an area with regular power cuts who wants filters and livestock kept oxygenated.
Is there anything to watch out for with the Dophin BP-188 AC/DC Air Pump?
It is bulky (18 x 16.5 x 7.7 cm) and the sealed battery will need replacing eventually.
What are the alternatives to the Dophin BP-188 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.