I'm not sure why UPS was chose. For the bulk of domestic shipping in the US, USPS would be a better solution. They can be sticklers sometimes with Lithium batteries but even UPS has policies on those too. USPS would be cheaper for
@RastaBuddhaTao on the wallet, and Priority Mail is far quicker to the West Coast than UPS Ground. USPS offers free shipping Priority Mail supplies that can be delivered to wherever fulfillment happens and orders with Priority Mail are automatically insured for $50, UPS insures $100 in the base price but the price is probably double or more what USPS would be.
Overseas, UPS can get a lot more expensive than USPS when it comes to handling fees, import taxes, duty, VAT etc.