> This is scaremongering. There are literally billions of lithium I'm not talking about phones or tablets. =A0Those are small and have a temp= erature sensor and will quit charging if things start heating up. =A0There = are tons of iffy 18650 battery packs floating around out there that have a = single temperature sensor somewhere inside a big pack of 18 or more cells. = =A0What if one of the cells on the outside far away from the sensor starts = overheating? =A0Then there are loose single cells and dumb chargers with no= temperature sensor at all. =A0Not in my house. =20 --=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 .