We have 4 paddleboards and I can pump them all up back to back, then deflate the back to back at the end of the day and still have power left. The only downside is the built in light automatically turns on so I have to remember to turn it off right away so it doesn't eat the battery. I'm sure there is a way to program it to stop, but that would require me to read directions..... that's not going to happen lol.If you have just 1 paddle board you need this thing. Those pumps they come with SUCK, using a corded pump at the car and carrying it to your spot is for peasants. Spend the extra bucks now and enjoy pumping at the water with ease. Done be a cheap a$$