The Blue Diamond CP-60 air pump is an excellent dual voltage pump, capable of switching seamlessly between electric and battery. Using this pump protects your fish in a wide diversity of situation and this pump can be used for many purposes. This heavy pump has a 6' power cord but also has a battery inside that will continue to run the air pump during a power shortage or transport.
Runs up to 8 hours without being plugged in!
Transitions from DC battery to AC power supply flawlessly
Variable flow control so that you can adjust the air flow
1 year warranty
Recommended: Unplug once a week for 8 hours to run down the battery life. Then plug it back in so it can recharge. This will extend battery life. If batteries are plugged in 24/7, the battery will degrade more quickly.