Quiet AC/DC Aquarium Air Pump for up to 600 Gals Tank, 4W/6W Portable Battery Powered Air Pump with Long 48 Hours Battery Life, 2-Outlet Oxygen Pump for Outdoor Fishing

Absolutely amazing pump, especially for the price. Runs almost whisper silent as opposed to many other brands that buzz and rumble. Has no issues running both an air stone and a bubble filter, so air flow isn’t an issue at all. Simple buttons to keep operation easy. Haven’t had a long term power outage but have run it for several hours continuously, but you have an option to run intermittently, if desired to extend battery life. Had it for about 8 months with no issues.

The battery backup on this item is exceptionally long lasting. The features are the best I have seen on any air pump. On my prior aquarium I tried to use plants to provide oxygen for my fishies. In the end I had to give up on that tank. While the plants were beautiful, they came with a price, snail infestation. Literally after a year there were hundreds, or more. I kept a huge colony of shrimp also, making copper a non-option. I ordered my plants through a so called reputable site. With each plant, more and more snails. Eventually over loading my tank. Once I bought my 32 biocube, I decided I would provide air via a high powered air pump. This more than meets my needs :) you can see the light fog of many dispersed air bubbles in the tank, and my fish love it. We have a huge amount of blackouts here. I tried a non battery backup pump originally. After hours of loss of power, the fish would be at the surface gulping for air. I do have a huge natures generator system, but I’m usually not home to turn it on and run cords. After I put this into use, even without power to my home I could still see the super tiny air bubbles in the tank. Therefore that issue is solved by this product. I use both air outputs on opposite sides of my tank at medium power. This is an excellent product and is also the best air pump I have had in my 30 years of having fishies. It is also so quiet you can’t hear it run. The only sound you hear from it is the bubbles breaking the surface from a piece of decor that produces large air bubbles. Once again this is a perfectly designed product.

Not too loud, not too weak. I used 2 of these on my aquariums for a battery backup. I have them running in tandem with a larger pump on each aquarium and have them connected with check valves. Had to get them for a planned blackout for some electrical work. 12 hours with no power and these each worked great. I have 1 in a 55 and 1 in a 75. Should I lose power my fish now have life support! Also I run the battery power during water changes because I power down my tank so it kicks on and reassures me it still working. I'm very satisfied.

Powers a very large foam filter and an airstone in my aquarium. Ultraquiet, adjustable air pressure, going strong after several months. Had been purchasing a much more expensive one. After it broke twice within just a few years, I found this one. I can buy 2 at less the price. And this one is more quiet. Love it!

It works. It's a strong pump. Back up wasn't horrible but only lasted 17 hours on full charge.

This is a great air pump with plenty of power to drive multiple sponge filters in my 75-gallon aquarium. I didnt realize that it has a feeding option which turns off the air for a few minutes and the battery life was very good in my first test. I got over 24 hours without changing any settings, I am sure I could squeeze out more hours if i switch it to the intermittent setting. The unit is quiet, and the controls are intuitive. The only cons I have are 1. this is a very large pump and takes up a lot of space in my cabinet 2. the power cable is a proprietary barrel connector. I would prefer a usb connection on both sides to allow for longer cables and replacement

Did exactly the job I got it for. Had a power outage a while back that lasted longer than I thought. Started to get worried and had to jerryrig an air pump. Too a while to find what I wanted and this fit the bill perfectly. It runs normally on a/c power, but the battery backup kicked in last outage and lasted more than enough to get through it. Plenty of airflow, can be adjusted for any tank size needed (within reason of specs) and of quality build. It was stupidly difficult to find this, so hopefully this will make it easier for someone.

works great and has plenty of power peace of mind with power outages

Its a great addition Quality and performance excellent Highly recommend if have electric issues 😉