''Director Cairns Infrastructure and Assets, Mark Wurth said the facility was around 20 years old and the ignition of a lithium ion battery was the most likely cause of the blaze. “We have certainly had problems with lithium batteries in the recent years, which is the most likely cause, although investigations are ongoing.” he said. “We have had up to about 13 fires in the back of rubbish trucks and a similar number of fires in facilities at our stations with these batteries.