The panasonic pan agb23e is a single slot battery charger for the cga d54d54s series of batteries charging a high capacity battery in approx 6 hours the ag b23e can be used to charge batteries for the ag hpx171 ag hpx250 ag hpx255 ag ac90 and ag ac8 camera recorders as well as batteries for the ag msu10 memory storage unit ag hpg20 and ag hpd24 recorder decks