When shipping Lithium Metal batteries, the lithium metal content of the cell or battery dictates which part of the relevant Packing Instruction are used to pack the item.
With Lithium Ion batteries, it is the Watt/Hour rating, which dictates which part of the Packing Instruction we use. Each battery is 2000mAh x 3.7 V = 7.4 Wh. This would indicate shipping under Section II of Packing Instruction 967 (copy attached). The net weight of the battery is 39.5 grams.