(Contents of box, November 2020:)
@Sharon, be aware that adding accessories and peripherals to your order could delay shipment if, e.g., Purism doesn’t have an item on the shelf and ready to go. But then, if you order items separate from the initial shipment, you’ll have to pay for shipping.
Note also that shipping spare batteries can be problematic to impossible due to safety regulations, so best get one with the initial shipment if possible.
Quoting: “NOTE for customers outside US: We will not be able to ship any orders that contain ONLY batteries, without containing a laptop and/or phone, due to regulations. Any such order will be cancelled and refunded. If you already have an order for a laptop or a phone, order for the battery will be combined with that order.”