About: http://webisa.webdatacommons.org/279029066

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	So, mainly for appearance, slightly for structural reinforcement.Of course they may merely have an exclusive contract with the manufacturers of these extra-slim batteries so that other sellers could not acquire them anyway.
http://www.w3.org/ns/prov#wasQuotedFrom	dailytech.com