The check in station queues have multiple entrance...

The check in station queues have multiple entrances and are not clearly marked making finding one's way unclear, and there are no staff there to assist those unfamiliar with the Shanghai Pudong Airport which queue entry is the correct one to use. Passenger and flight safety are always important, and Pudong's security check point policies are exacting and one of the most extreme I've experienced, down to verifying the maximum WHr energy storage of each battery pack, so consider bringing along some documentation calling out the WHr rating, or labeling the battery packs with the rating number as this may save you time in the security screening should you have one or more battery packs.