Aquarium Co-Op Air Pump with Battery Backup

Automatically switches to battery use during a power outage Powerful air flow with 5 adjustable levels 1-year hassle-free warranty Not available to be shipped to Hawaii and Alaska. The air pump you've always needed is here. Keep your aquarium water well-oxygenated and your fish healthy in absolutely any scenario — even when the power is out. To give you peace of mind, the Aquarium Co-Op air pump utilizes a rechargeable lithium-ion battery that automatically switches to battery use if it loses power. It can be run continuously for approximately 20 hours on a single charge and can run in Power Save mode (where the air cycles between 15 seconds on and 15 seconds off to conserve battery) for 40 hours or more. Note: the printed manual has not been updated yet and incorrectly states that the battery runs for 8 and 16 hours. 1. Connect the air pump to the USB cable and power adapter. Plug the power adapter into an electrical outlet.2. Connect the other end of the air pump to airline tubin