US 12,224,612 B2
Method for charging battery packs for power tools and charging device for carrying out the method
Marc-Alexandre Seibert, Stuttgart (DE); and Thomas Gabriel, Kirchheim-Jesingen (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Appl. No. 17/253,403
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed May 29, 2019, PCT No. PCT/EP2019/063916
§ 371(c)(1), (2) Date Dec. 17, 2020,
PCT Pub. No. WO2020/001907, PCT Pub. Date Jan. 2, 2020.
Claims priority of application No. 102018210524.3 (DE), filed on Jun. 27, 2018.
Prior Publication US 2021/0273474 A1, Sep. 2, 2021
Int. Cl. H02J 7/00 (2006.01); H01M 10/46 (2006.01); H01M 10/48 (2006.01); H01M 50/213 (2021.01)
CPC H02J 7/0069 (2020.01) [H01M 10/46 (2013.01); H01M 10/488 (2013.01); H02J 7/007 (2013.01); H02J 7/00716 (2020.01); H01M 50/213 (2021.01)] 14 Claims
OG exemplary drawing
 
1. A method for charging a battery pack for a power tool using a charging device, the charging device having a first charging mode, in which the battery pack is charged up to a defined state of charge using a constant current and subsequently using a constant voltage, the charging device further having at least one second charging mode which is settable via a user interface by a user, the method comprising:
setting, by the user via the user interface, the second charging mode; and
in the second charging mode, only partially charging the battery pack up to a charge limit exclusively using a constant current, wherein the constant current of the second charging mode is higher than the constant current of the first charging mode, wherein the charge limit of the second charging mode is smaller than the charge limit of the first charging mode,
wherein the charge limit defines a target value of the charging capacity of the battery pack up to which the battery pack is to be charged.