Robert Boschgmbh

Holger Wernerus

Christoph Klee

Marc-Alexandre Seibert

Tim Brecht

Juergen Mack

Alexander Osswald

Mickael Segret

A method detects electrical fault states of a removable battery pack and/or an electrical device, in particular a charging device, a diagnostic device or an electrical consumer, that can be connected to the removable battery pack, using a first monitoring unit integrated in the removable battery pack. The method includes measuring a charging or discharge current using a first current measuring apparatus integrated in the electrical device and transmitting the measured current directly or as a converted voltage value to the first monitoring unit of the removable battery pack, and determining, using the first monitoring unit, based on the charging or discharge current and/or the voltage value calculated therefrom, whether the removable battery pack is operating in a permissible operating range.

Method for detecting electrical fault states of a removable battery pack and/or an electrical device that can be connected to the removable battery pack, and system for carrying out the method

The disclosure relates to a battery back for a hand-held power tool comprising a battery pack housing. An interface of the battery pack housing has contact elements for contacting corresponding counter contact elements on the hand-held power tool and/or the charging device. A battery pack electronics system comprises a charge current path and a discharge current path. The charge current path is designed to connect the contact elements to the battery cell during a charging of the at least one battery cell, while the discharge current path is designed to connect the contact elements to the battery cell during a discharging of the at least one battery cell. The charge current path and the discharge current path are at least partially electrically separate from one another. The battery pack also comprises a first switch element for switching between at least the charge current path and the discharge current path.

Battery pack for a hand-held power tool, hand-held power tool and charging device

A method controls a charging or discharging current of a removable battery pack and/or an electrical device, in particular a charging device, a diagnostic device or an electrical consumer, using a first monitoring unit integrated in the removable battery pack and a further monitoring unit integrated in the electrical device. The method includes monitoring a defined control potential of a signal or data contact between the removable battery pack and the electrical device using the further monitoring unit.

Method for controlling a charging or discharging current of a removable battery pack and/or an electrical device and system for carrying out the method

Growing community of inventors

Pliezhausen, Germany

Holger Wernerus