About: http://webisa.webdatacommons.org/62779769

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	Yes, the battery is a backup, but only when it is voltage is above a certain level.
http://www.w3.org/ns/prov#wasQuotedFrom	homeshopmachinist.net