[FourPeas]

Discarding the battery chargers is certainly unusual. Since the batteries are usually not charged when purchased, what were they going to do with the phones without charged batteries? Somehow wire it into some other power source?

[ARealMothersSonForever]

Since the batteries are usually not charged when purchased, what were they going to do with the phones without charged batteries?

The paperwork says to charge the batteries. This does not mean that there is no residual charge on the batteries. They were charged, tested, and recharged to a certain extent.