Method and Devices for Operating Deep Discharge-Proof Battery Packs for Electric Processing Tools

A method for deep electric discharging of a deep discharge-proof electric battery cell of a battery pack via an electric discharging device,

• wherein the method comprises the steps of:
• ab) switching-on the discharging device such that a discharging current flows through the switched-on discharging device;
• and
• bb) checking as to whether the discharging current falls below a stipulated level.

A method for electric charging of a battery pack, wherein the battery pack has:

• at least one deep discharge-proof electric battery cell, which battery cell is chargeable with electrical energy and is configured to execute a reversible transition between a state of deep discharge and a charged state;
• and
• two electrically contact-connectable electric poles, which two poles are configured such that electric pole voltage of the battery pack, which voltage is dependent upon an electric cell voltage of the at least one electric battery cell, is applied thereto;
• wherein the electric cell voltage, in a state of deep discharge, lies within a stipulated ranged around 0 V and, in the charged state, exceeds the stipulated range around 0 V;
• wherein the method comprises the steps of:
• ac) detecting the at least one battery cell as deep discharge-proof and/or detecting the state of deep discharge;
• bc) checking an orientation of the two poles vis-à-vis a charging device for the electric charging of the at least one battery cell of the battery pack and/or checking of the battery pack for the presence of a malfunction;
• cc) in an event that it proceeds, from the check according to step bc), that the two poles, vis-à-vis the charging device, assume a stipulate charging orientation, and/or that the battery pack is free of any malfunction, electric charging the at least one electric battery cell via the two poles, via the charging device, in order to charge the battery pack.