Patent ID: 11894710
Assignee: MAKITA CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 10:
11. A charger, comprising:
a current outputter configured to supply the charging current to a battery pack, the battery pack including:
a first cell configured to be charged with a charging current supplied from a charger;
a memory device configured to store a maximum variation of a charging current value, the charging current value indicating a magnitude of the charging current output from the charger to the battery pack, the maximum variation being determined depending on a characteristic of the battery pack;
a target current calculator configured to calculate a newest value of a target current value based on (i) a previous value of the target current value and (ii) the maximum variation, the target current value corresponding to the magnitude of the charging current required to charge the first cell;
an information notifier configured to transmit charge condition information, the charge condition information including the newest value; and
an operation information acquirer configured to acquire charging operation information from the charger via communication with the charger, the charging operation information including the charging current value;
a condition information acquirer configured to acquire the charge condition information from the battery pack;
an output current setter configured to set the magnitude of the charging current based on the newest value included in the charge condition information; and
a charger-side communicator configured to output the charging operation information to the battery pack, the charging operation information including the charging current value.