Always charge over firebrick and leave unused cells disconnected. Charging is always the most dangerous time, followed by high rate discharge= .. If you can charge outdoors, do it. =A0It's not worth the risk. =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 .