On Fri, Jan 24, 2014 at 3:44 AM, peter green wrote: > > Interestingly airlines are happier with lithium batteries inside > equipment than with batteries packed seperately. Presumablly because > there is less risk of getting a large concentration of batteries stacked > together that way. > Also less chance of the batteries being shorted - otherwise with pretty much any battery I've come across you have exposed terminals. I'm still wondering what actually resulted in the LiPo causing that (if indeed it did) as I understood the danger is in charging or shorting out a battery, which doesn't seem all that likely with a battery installed in a RC model - the only high current pathway even if stuff malfunctions should be via the motor, which would limit the peak current (any other pathway should be via thin traces which would act as fuses - they certainly do in my personal experience!) Don't see why it should be an issue leaving batteries installed in things. I was under the impression that the batteries used in consumer > electronics (cellphones, laptops, tablets etc) generally had much better > protection than those used by the RC guys. Am I wrong? You're right - RC batteries are generally unprotected cells as far as I know (certainly all the ones I own present that way to the charger - generally you use a smart charger with a balance connector). Definitely smart circuits inside all the laptop batteries I've taken apart, though I wouldn't know about phone batteries - there seems less need to incorporate that into the batteries as they're only single cells. Chris --=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 .