Air Pumps

LGND Aeris Q Series

Automatic battery backup during power cuts

Continuous and Intermittent operating modes

Intermittent cycle: 8 seconds ON / 10 seconds OFF

Rechargeable lithium battery

USB-C charging connection

Price range: £ 34.99 through £ 49.99 (incl. VAT)

EUR: 48.70€ - 69.58€

Model:

Q-20
Q-60

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Overview ›

LGND Aeris Q Series air pumps provide reliable aquarium aeration during everyday operation, transport and unexpected power cuts. The integrated rechargeable battery automatically takes over if the external power supply is interrupted, helping maintain essential oxygenation when it is needed most.

Both models offer quiet operation, USB-C charging and a choice between Continuous and Intermittent modes. The compact Q-20 features one air outlet, while the more powerful Q-60 provides two outlets for larger aquariums or multiple aeration points.

Key Features ›

Automatic battery backup during power cuts
Continuous and Intermittent operating modes
Intermittent cycle: 8 seconds ON / 10 seconds OFF
Rechargeable lithium battery
USB-C charging connection
LED battery-level indicators
Quiet, energy-efficient operation
Compact design with anti-slip, vibration-damping feet
Suitable for freshwater and marine aquariums
Ideal for everyday aeration, emergency backup and fish transport

Technical Specifications ›

Q-20 Q-60

Battery capacity	2600 mAh
Battery voltage	3.7 V
Power consumption	1.8 W
Air outlets	1
Aquarium volume	Up to 200 L
Operating modes	Continuous / Intermittent
Intermittent cycle	8 s ON / 10 s OFF
Charging connection	USB-C
Automatic backup	Yes

Actual performance and battery runtime may vary according to the operating mode, hose length, Air Stone condition, installation depth and battery condition.

Battery capacity	4800 mAh
Battery voltage	3.7 V
Power consumption	4 W
Air outlets	2
Aquarium volume	Up to 300 L
Operating modes	Continuous / Intermittent
Intermittent cycle	8 s ON / 10 s OFF
Charging connection	USB-C
Automatic backup	Yes

Actual performance and battery runtime may vary according to the operating mode, hose length, Air Stone condition, installation depth and battery condition.

Directions ›

Fully charge the pump before first use.
Connect an air hose and check valve to each air outlet being used. The arrow on the check valve must point towards the aquarium.
Connect an Aeris Air Stone to each hose and position it inside the aquarium.
Place the pump outside the aquarium on a dry, stable surface, preferably above the water level.
Press the Power / Mode Button to start the pump and switch between Continuous and Intermittent operation.
When connected to a suitable USB power supply, the pump automatically changes to battery operation if the external power supply fails.

FAQ ›

What is the difference between Q-20 and Q-60?

The Q-20 has one air outlet and a 2600 mAh battery. The Q-60 has two air outlets and a larger 4800 mAh battery for larger aquariums or two aeration points.

Does the pump work during a power cut?

Yes. When connected to an external power supply, the integrated battery automatically takes over if the electricity supply is interrupted.

What is Intermittent Mode?

The pump operates for 8 seconds and pauses for 10 seconds. This repeating cycle reduces energy consumption and extends battery runtime.

Is a check valve required?

A check valve is strongly recommended and is essential if the pump is positioned below the aquarium water level. For Q-60, use one check valve in each air hose.

Why has the airflow become weaker?

Check for a blocked Air Stone, kinked hose, incorrectly fitted check valve, air leak or low battery charge. Clean or replace the affected component as required.

Can the airflow be adjusted?

The Aeris Q-20 and Q-60 do not have a mechanical airflow control. The Power / Mode Button switches between Continuous and Intermittent operation.

Can it be used in marine aquariums?

Yes. The pump is suitable for freshwater and marine aquariums, but the pump body and electrical connections must remain dry and outside the aquarium.

Safety ›

Download Safety Data Sheet (SDS)

Important Safety Instructions

⚠ Indoor use only.
⚠ The pump is not waterproof and must never be immersed.
⚠ Keep the pump, USB-C connection and power adaptor dry.
⚠ Position the pump securely where it cannot fall into the aquarium.
⚠ Install a check valve if the pump is below the water level.
⚠ Form a drip loop in the power cable below the electrical socket.
⚠ Do not use damaged cables, adaptors, hoses or accessories.
⚠ Disconnect the external power supply before cleaning.
⚠ Do not cover the pump or obstruct its ventilation openings.
⚠ Do not open, modify or attempt to repair the pump.
⚠ Stop using the pump if it overheats, produces an unusual noise or stops delivering air.
⚠ Keep the product and small accessories away from unsupervised children and animals.
⚠ For complete installation, operating and safety information, refer to the supplied instruction manual.