Lobster Elite Power Pak Ball Machines : Get unlimited playtime with the Lobster Elite Power Pack! This battery pack offers two convenient charging options. Plug this pack into any battery-powered Lobster machine to run for as long as you want. If you prefer a lightweight machine without an internal battery, this pack will power it with electricity only. Regardless of what you choose, the Lobster Elite Power Pak extends your training session to get the most of every workout! Weighs under three pounds and comes with a convenient carrying strap and plugs into the charge port on the red case. For use with elite one, elite two, elite three or pickle two models.