FIELD: electricity.
SUBSTANCE: invention relates to electrical engineering. The adapter is supplied with a connection section designed with a possibility of demountable attachment to the base housing of the tool with electrical drive, and with at least one loading section for the battery designed with a possibility of demountable attachment to the battery power supply. The battery power supply fixed to the loading section for the battery, is electrically connected to the base housing of the electric driven tool attached to connection part, through the adapter power supply circuit. The adapter is equipped with a measuring section designed with a possibility of measuring of a parameter, corresponding the level of charge of the battery power supply, and accepting a signal by a section designed with a possibility of reception of alarm signal the battery power supply, and is designed with a possibility of termination or limitation of power supply in the base housing of the electric driven tool on the basis of sampling by measuring section and the alarm signal received.
EFFECT: preventing redundant discharge of the battery power supply.
13 cl, 17 dwg
