A battery pack discharging device having a hand-held member and a docking device are provided. One particular application of the invention converts synthesis gas into hydrocarbons. Zone isolation is accomplished by manipulation of a port on a wash pipe attached to the crossover assembly. To win a Poker Bet wager, a Player’s hand must rank higher than the Banker’s hand. , and the olefin epoxide is present in the reaction in a molar excess of about 10 percent over the stoichiometric amount necessary to react with the hydridoalkoxysilane.