We had another electric pump that worked fine but took about 15 minutes to blow up one SUP and would be almost dead after that, we typically would still manually inflate one while the epump took forever, we would finish manually inflating before the old electric one was done. But now???? It is so fast!! We’re barely done getting our stuff together before both boards are inflated. We have used the same charge on 2 separate trips to inflate and deflate 2 boards with more battery left. Spend the money, it’s worth it!