AQQA Aquarium Air Pump, Battery Rechargeable Portable Bubbles Oxygen Pump for Fresh & Saltwater Aquariums Tanks with Air Stone, Tube, USB Cable and Adapter (1.7 W for 1-100Gal Tank)

Great quality and works awesome, power is great, long battery life but I just plug mine in the power outlet, noise level is alright, size is good, I have 30 gallons tank and it works great, I use 2 of them to run my tank.

This upgraded model has a longer lasting battery. I set it to intermittent and left it on all night, and the battery still showed full. I haven't had to recharge it yet, but the previous model took several hours from a dead start.The only assembly is to plug in a tube to the battery unit and plug in the bubbler to the end of the tube.The amount of bubbles is more than enough for a 5-10 gal tank. The battery itself has a soft hum, but the most noise is from all the bubbles.If you want a good amount of oxygen for your tank, this is the unit to get.

I've had this pump for about two years, just been too lazy to right a review. And it has Never quit working on me. I leave it plugged in to just run in my fish tank and works great. If I need to move or travel with the fish I just unplug it and it runs for like 4-6 hours on the regular mode, intermittent lasts about twice as long. Honestly an amazing pump, if mine ever breaks for whatever reason I will be buying a new one of these beauties.

I use the KULIFE rechargeable pumps and they have been great. I ran out of power bricks so I thought I'd buy this more expensive one that comes with one with a bit more power. Unit arrived dead. After being plugged for more than 12 hours (overnight), the unit won't turn on. LEDs and the button are not working and the unit just vibrates intermittently. I attached pictures of this Unit as received. Not sure if it is used or not but scratch marks just above the INT label and some kind of sandy particles on it. Also noticed "KD" stamped on the metal clip. Looks like someone manually stamped initials on it but I am not sure. Asked for a replacement unit and should be in tomorrow. Replacement unit does have stamp too. It’s working flawlessly now. Noise level is as expected and the battery is lasting as expected also.

Works well and it's very quiet. Also portable.

Update: 5 weeks and 2 days into the use of this air pump and it is no longer pumping air, and of course the return window closed 8 days before the pump stopped working! I am changing my review to a one star due to the longevity of this pump. I no longer recommend this pump! I am hoping the seller will stand behind this product and replace it or refund me! Do not buy this air pump if you want it to last more than 5 weeks!This pump has worked flawlessly as an air supply for my minnow bucket. I have used it several times on my fishing outings and it has performed awesome! I've used it for up to 10 hrs at a time in the boat and on the dock on the continuous run mode and it has only used 2 of the 5 light bar charge indicators (so aprox 40% of its charge). Using that as a guide, it will last 25 hours and a full charge with the pump running on the continuous mode, and although I haven't used the intermittent mode, it should last at least double the hours.After my 10 hrs of fishing and once home, I leave the pump running for the remaining minnows and just plug it into the charger and its fully charged and ready to go the next morning.This pump has been running continuously, both on and off the charger since the day I received it and it has performed without flaw!The only issue I've had is with the little rubber charge port plug. You have to pick it out of the charge port with your finger nail and because of that, and its small size, the whole plug has come detached from the pump. I used the tip of a pen to re seat it and its been fine since. Just keep in mind to be careful when removing it to charge and it won't be a problem.If your thinking about getting this as a portable pump for your minnows, don't hesitate. You won't be sorry.Hope this helps when making your decision.

I’ve owned my filter pump for just less than two years and it still works fantastic!! Only thing to note that it makes a low hum that I don’t mind.

Great pump, price and airflow