Do you use the PF battery box to operate your PF trains - the box that comes with PF train sets anyway - or do you use the rechargeable one? I have recently bought train 60052 but I don't use the battery box. I use the rechargeable one. I don't like taking batteries out and putting them back in all the time. This way I can simply recharge the entire box by just attaching the cable of the charger. In my opinion this procedure is just nicer and less annoying.