YIXUAN A full charge lasts 30-40 days or about 4-6 bottles of 5 gallons of water. This electric water pumping device is suitable for pure bottled drinking water, and is suitable for various types of gallon buckets without prying the cap. NOTE: The drinking water pump is suitable for gallon drums with a 2.16" (5.5 cm) neck. Please confirm your neck size before purchasing. Round edge design, comfortable grip, compact and lightweight, more convenient to carry Tap for one second to dispense water Start a healthy and simple life Safe and secure, usb charging, one-key water supply, free movement, mini portable. Applicable barrel type: barreled barrel, threaded PC barrel Applicable capacity: 4.5L 5L 7.5L 10L11.3L 15L18.9L Quantity shipped: 1 pc water absorber, excluding other products. Product size: white Product color: 13*7.5cm Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store