
The pump eats batteries when operated from the mains. The whole purpose of buying this pump was to have a backup battery to run if the power goes out. There were two power cuts and there were new batteries in the pump and each time the batteries died when the power went out four more new batteries had to be put in to make it work and it only took about an hour each time.

KEDSUM Battery Aquarium Air Pump: Ultra-Quiet Rechargeable Fish Aerator with Dual Outlets - Ideal for Fish Tanks, Outdoor Fishing, Fish Transportation, and Power Outages
35 Review

Powerful And Quiet Submersible Pump For Aquarium, Pond, And Hydroponics: KEDSUM 660GPH Pump With 6Ft High Lift And 3 Nozzles
29 Review

KEDSUM 330GPH Ultra Quiet Submersible Pump With High Lift And Grounded Power Cord - Ideal For Fish Tanks, Ponds, Aquariums, Statuary, Hydroponics - Includes 3 Nozzles And 1500L/H Water Flow
39 Review

KEDSUM Quiet Rechargeable Battery-Operated Aquarium Air Pump With Dual Outlets - Perfect For Fish Tank, Outdoor Fishing, Transport, And Emergencies
28 Review

Vacuum cleaner TEQQO Aquastick 3 in 1 Power, grey/turquoise
26 Review

Steam cleaner Deerma Deerma DEM-ZQ610 EU, white/red
68 Review

Efficient 2-In-1 Magnetic Fish Tank Cleaner With Non-Slip Design And Scratch-Free Blades
37 Review

Mini pump Xiaomi Mijia Electric Pump 1S, plastic, black
55 Review