Patent ID: 7592773
Filing Date: 2009-09-22
Classification: H02J,Y02P

Abstract:
1. A portable self-contained electrical power tool assembly, comprising: a first subassembly forming an electrical actuator and generating the mechanical action of the tool; a second subassembly forming an electric energy source and comprising essentially a rechargeable electrochemical battery; and a third subassembly forming a charger adapted to carry out controlled recharging of the battery, wherein: the second subassembly ( the first subassembly ( the third subassembly ( the electronic command and control module ( i) management of charge, ii) management of discharge, iii) balancing the charge of each cell ( iv) protection in discharge of the battery ( v) management during storage, and vi) management of diagnostics, wherein when the tool assembly is not charging and has not been used for a predetermined period the digital processing unit (