The battery powered aquarium air pump is a portable air pump device that uses a battery as the power source and does not need to be connected to a power outlet. This type of aquarium air pump is typically used in the following situations:

Temporary oxygen supply: When the main air pump of the aquarium or fish tank malfunctions or requires maintenance, the battery powered aquarium air pump can provide temporary oxygen supply to maintain the life activities of the fish.

Portable aquarium: For outdoor or travel portable aquariums, battery powered air pumps are a convenient choice as they do not require contact with power sockets.

Power outage backup: In case of power outage or emergency, the battery powered aquarium air pump can continue to provide oxygen to the aquarium, ensuring the safety of fish.

The following are some characteristics of battery powered aquarium air pumps:

Battery type: These pumps typically use common battery types, such as alkaline batteries (AA, AAA, etc.) or rechargeable batteries. Some models may also have built-in rechargeable batteries.

Running time: The running time of a battery powered aquarium air pump depends on the type of battery and the power of the pump. Some pumps may run for several hours after a battery replacement, while others may be longer.

Portability: These pumps are usually very portable and easy to carry. They usually come with hooks or clips that can be easily fixed to the edge of an aquarium or fish tank.

Sound: Battery powered aquarium air pumps are usually quieter than traditional power pumps because they do not have power sockets or wires.

Maintenance: Maintenance usually includes regular battery replacement to ensure the normal operation of the pump.

Please note that battery powered aquarium air pumps are typically suitable for small aquariums and fish tanks to provide temporary or backup oxygen supply. If long-term and continuous oxygen supply is required, it may be necessary to consider a backup power supply or a system that automatically switches to a backup air pump.