Early models of Maha MH-C9000 sound to have been very problem prone. Also appears to have been fixed with time AND they honour their 3 year warranty. Entertaining report of a NZ user who had to send back 3 units with different problems until they got it right http://www.videofoundry.co.nz/ianman/laboratory/research/battery_mh-c9000.shtml Serial number should be OGOE01 or later. Same site has some good material and links on rechargeable batteries. Russell -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist