Abstract: A charging apparatus includes a battery pack, which includes a cell voltage detection unit outputting a signal if a detected cell voltage is not smaller than V1, and a temperature sensor detecting a temperature of the battery pack; and a charger, which includes a charging control circuit and a pack voltage detection unit detecting a voltage across two terminals of the battery pack. If the detected temperature from the temperature sensor exceeds 0° C., the charging control circuit switches to a constant voltage charging when the signal from the cell voltage detection unit is received; and if otherwise, the charging control unit switches to the constant voltage charging when receiving the signal or the detected pack voltage exceeds V2, whichever occurs first.

Abstract: When charging of a secondary battery is started, a power source section for supplying an electric current for charging the secondary battery gradually increases the supply amount of the current. If the charging current has reached a predetermined first threshold current, the power source section is operative to set the supply amount of the current to a predetermined constant current for a constant current charging. If a terminal voltage of the secondary battery has reached a predetermined threshold voltage, the power source section is operative to supply a predetermined voltage for a constant voltage charging to the secondary battery.

Abstract: A charger includes a battery pack receiving therein a plurality of batteries and having a projection provided with a contacting terminal, and a charger section having a mounting hole provided with a charging terminal, the battery pack being set on the charger section with the projection mounted into the mounting hole of the charger section for charging the batteries. The battery pack has vent ports through a wall on the side having the projection, while the charger section has blast ports at positions opposing the vent ports and a blower disposed to be on a side of the mounting hole and below the blast ports, for blowing air from the blower, through the vent ports into the interior of the battery pack, for elevating blow rate to the battery pack, battery cooling and gas discharge out of the battery pack.

Abstract: A charger includes a battery pack receiving therein a plurality of batteries and having a projection provided with a contacting terminal, and a charger section having a mounting hole provided with a charging terminal, the battery pack being set on the charger section with the projection mounted into the mounting hole of the charger section for charging the batteries. The battery pack has vent ports through a wall on the side having the projection, while the charger section has blast ports at positions opposing the vent ports and a blower disposed to be on a side of the mounting hole and below the blast ports, for blowing air from the blower, through the vent ports into the interior of the battery pack, for elevating blow rate to the battery pack, battery cooling and gas discharge out of the battery pack.

Abstract: A charger includes a battery pack receiving therein a plurality of batteries and having a projection provided with a contacting terminal, and a charger section having a mounting hole provided with a charging terminal, the battery pack being set on the charger section with the projection mounted into the mounting hole of the charger section for charging the batteries. The battery pack has vent ports through a wall on the side having the projection, while the charger section has blast ports at positions opposing the vent ports and a blower disposed to be on a side of the mounting hole and below the blast ports, for blowing air from the blower, through the vent ports into the interior of the battery pack, for elevating blow rate to the battery pack, battery cooling and gas discharge out of the battery pack.

Abstract: A charger includes a battery pack receiving therein a plurality of batteries and having a projection provided with a contacting terminal, and a charger section having a mounting hole provided with a charging terminal, the battery pack being set on the charger section with the projection mounted into the mounting hole of the charger section for charging the batteries. The battery pack has vent ports through a wall on the side having the projection, while the charger section has blast ports at positions opposing the vent ports and a blower disposed to be on a side of the mounting hole and below the blast ports, for blowing air from the blower, through the vent ports into the interior of the battery pack, for elevating blow rate to the battery pack, battery cooling and gas discharge out of the battery pack.

Abstract: A charger includes a battery pack receiving therein a plurality of batteries and having a projection provided with a contacting terminal, and a charger section having a mounting hole provided with a charging terminal, the battery pack being set on the charger section with the projection mounted into the mounting hole of the charger section for charging the batteries. The battery pack has vent ports through a wall on the side having the projection, while the charger section has blast ports at positions opposing the vent ports and a blower disposed to be on a side of the mounting hole and below the blast ports, for blowing air from the blower, through the vent ports into the interior of the battery pack, for elevating blow rate to the battery pack, battery cooling and gas discharge out of the battery pack.

Abstract: The method for producing nonionic detergent granules includes the steps of (I) blending the following (i) to (iii): (i) at least one of a nonionic surfactant and an aqueous nonionic surfactant solution; (ii) an acid precursor of an anionic surfactant capable of having a lamellar orientation; (iii) at least one of an alkali builder and an alkali, porous oil-absorbing carrier, to give a mixture of detergent starting materials containing the nonionic surfactant as a main surfactant component; and (II) heating the mixture obtained in step (I) at least up to a temperature capable of neutralizing the acid precursor of the anionic surfactant in an agitating mixer, and granulating while tumbling the agitating mixer thereby increasing a bulk density, to give nonionic detergent granules having a bulk density of from 0.6 to 1.2 g/ml.

Abstract: The method for producing detergent particles having a high bulk density, the method being characterized by mixing granulated detergent particles having a bulk density of from 500 to 1,000 g/liter, while applying a shearing force to particles caused by a contact of the particles with each other in a mixer. According to the production method using a drum mixer of the present invention, it is possible to increase the bulk density of the detergent particles by 50 to 200 g/liter, wherein the granulated detergent particles or that of the granulated detergent particles subjected to a treatment of increasing bulk density by conventional methods have a bulk density of from 500 to 1,000 g/liter.

Abstract: The method for producing nonionic detergent granules includes the steps of (I) blending the following (i) to (iii): (i) at least one of a nonionic surfactant and an aqueous nonionic surfactant solution; (ii) an acid precursor of an anionic surfactant capable of having a lamellar orientation; (iii) at least one of an alkali builder and an alkali, porous oil-absorbing carrier, to give a mixture of detergent starting materials containing the nonionic surfactant as a main surfactant component; and (II) heating the mixture obtained in step (I) at least up to a temperature capable of neutralizing the acid precursor of the anionic surfactant in an agitating mixer, and granulating while tumbling the agitating mixer thereby increasing a bulk density, to give nonionic detergent granules having a bulk density of from 0.6 to 1.2 g/ml.