Been a fan of Revo packs/equipment for a long time. I still own one of the earliest Cellpro 10s and carry a badass PL8 charging station to the field.
Recently made a purchase of some batteries from Singapore. I do recall some chatter previously about shipping restrictions but on my last visit, linking to the Singapore store clearly states
For NON USA, CANADA...limit your battery order to 2 battery per order due to IATA rules
Being a USA customer, I figured this would not apply. After ordering 3 packs, noticing the shipping cost was very high but offsetting it with a discount code, I received email tracking info for two packages.
Nowhere on the site can I find anything regarding this policy.
Had I been aware of the third pack affecting the shipping rate so heavily, I would have ordered four, or possibly just two. Regardless, this appears to be a misleading error on the website.