RC Significant house fire attributed to LiPo battery left in a 'toy' helicopter in a lounge. I've heard of surprisingly few such incidents. I do like their very precise 'fireball' warning. " ... The fire service says lipo batteries burn extremely hot - more than 1000C - and can create a fireball 1.8m in diameter ..." We have changed to metric units longer ago than I recall (currency 1967, other ...) but US readers would be familiar with the imperial measurement that that assessment was probably based on. The article emphasises advice to remove LiPo batteries from equipment not in use - without noting their widespread use in always-on consumer equipment. R/C model batteries will be of higher capacity than typical cellphones but usually below that of eg iPads and typical notebook computers. Russell Ref: Owen Mc ________________ Article says: " Bay of Plenty and Gisborne fire risk management officer Jon Rewi is warning people about the dangers of lithium polymer (lipo) batteries following the destruction of a Gisborne home this month. Rodney and Kelly-Ann Melville lost most of the contents of their Muir St home. .... ' I am 98 per cent certain that the fire was started by an overheating lithium battery in a toy helicopter in the lounge room,' he said.'" http://www.nzherald.co.nz/rotorua-daily-post/news/article.cfm?c_id=3D150343= 8&objectid=3D11190933 --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .