When I've had to push batteries, I use a flat with a shelf to hold all my batteries. I also grab a bunch of empty dvd repacks. I take everything to the batteries home loc and fill that first, then check the additional locs for everything, and sort the batteries based on that. I use one repack for side caps, one for all checklanes, one for CL17 (its endcap is only batteries, all the time), and another for actual backstock. I also keep a repack on the bottom for hearing aid batteries and batteries that go to One Spot. Batteries that haven't been sorted yet stay on the bottom of the tub.
I haven't been able to push for more than an hour using this method, because I usually get pulled to do other stuff, but it worked well for that hour, lol. Make SURE you have a PDA do to this.