Review on Efficient Inflation: Automatic Electric Ball Pump with Needle and Nozzle for Sports Equipment and Inflatables by Lagant Wardrick

This battery powered pump is amazing. I bought this pump to use as a college football umpire as we need to measure the balls and make sure they are under the same pressure before each game. I inflate them by hand and when you do five balls or more it takes a lot of effort. This electronic pump was amazing. When the battery is low, you can use the USB port in your car to charge the pump for play on the go. I've had it for a few weeks now and have used it for a few games and haven't had to charge it yet. Works perfectly. I would recommend this to all my colleagues.