Utterly superb battery manual from Eveready. http://data.energizer.com/batteryinfo/application_manual_table_of_contents.h tm Detailed descriptions and characteristics of specific batteries and much material on a wide range of chemistries and other generic aspects. Almost wants me want to buy their undoubtedly fine products despite the price/performance offered at retail :-) Every battery manufacturer should provide such an excellent resource. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu