Hi Byron, Do you know the physical size of the cells in these packs? At only 1.5AH I = expect they are sort of AA size instead of 18650. Thanks! Bob _________________________________ My interest is recorganizing smaller packs into larger for useful ones. In particular I'm interested in the Kobalt 24VMax series sold by Lowes. Their 1.5Ah battery is sold new for $10 each. As described above, there is a BMS attached by tabs/wires. So the cells can be paralleled using the intercell wires, and put in series also. My goal is to replace the lead acid 48V Ryobi self propelled lawnmower pack with a 48V 7.5AH battery made up of 10 of these $10 packs in a parallel/series configuration. --=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 .