JBJ Maxum Air Pump is a low voltage AC/DC air pump with a built in lithium-ion battery that provides up to 24 hours of operation during power outages, emergencies, or while transporting fish. The dual outlets can output up to 8 L/m of air, providing plenty of air to handle the most demanding aquariums.

The Maxum automatically switches to its internal backup battery in the event of a power failure. At full power it can easily last 24 hours but can be switched to a special interval mode that runs 15 seconds on, 15 seconds off, to stretch the overall aeration time to 48 hours on battery alone.

Features:

• Built in rechargeable lithium-ion battery
• Dual air outputs. 8 L/m of air.
• Switches to batteries automatically when the power fails
• Rubberized feet for quiet operation
• Airflow adjusted with touch controls