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a device for charging or recharging an accumulator or rechargeable battery


Antiques a large dish for serving at table or for display



(1) An electrical-engineering device for charging storage and capacitor batteries (mainly the former type). It consists of a charging generator or a transformer with a current rectifier, and a power switchboard that contains voltage regulators and automatic circuit breakers. The power of the charger depends on the capacity of the batteries being charged and the rated duration of the charge.

Storage-battery chargers are used for periodic charging, compensating and interrupted recharging, and equalizing charging of storage batteries, which, as a rule, are first grouped according to their capacity and the strength of the charging current. For periodic charging the storage batteries are divided into two groups. The charger charges one of the two groups at a time. For compensating recharging the charger feeds the load circuit and simultaneously recharges the storage batteries. For interrupted recharging it feeds the load part of the time and recharges the storage battery; the rest of the time it serves as a standby under a low load. The load circuit is fed by the storage battery. Capacitor chargers are used to charge capacitors in the normal mode—that is, continuously up to the rated voltage.

Low-power single-phase rectifier chargers have a steeply falling external characteristic suitable for the charging conditions of storage batteries. The voltage is regulated by means of a tapped secondary transformer winding.


(2) In blasting operations, a charger is a mechanism or machine for filling a charge hole with explosives. Chargers are divided into two groups: units for charging stick powder that does not contain nitroethers or cyclonite and units for charging granulated explosives. The units in the first group have not become widespread because of their low efficiency, the inadequate charging density, and the high cost of suitable explosives. Chargers for granulated explosives are designed to charge descending blastholes in pits by gravity flow of bulk or fluid explosives (portable mixing and charging equipment that produces a mixture of the explosive components, such as igdanit or granular granulit, during the charging process and transporting and charging machines for factory-made explosives) and to charge blastholes and wells in any direction by pneumatic equipment. Pneumatic equipment is preferred for mines and is subdivided according to its principle of operation into ejector types, in which the explosive is sucked up from an open container by a vacuum in an ejector head and carried along by a stream of compressed air into a charging pipe, and pressure types, which force the explosive from a sealed container by compressed air. The pressure chargers transport the explosive along pipes or hoses for 200–300 m (including 80 m vertically) and force it into the hole with the required velocity. Chargers for fluid explosives containing water are divided into two groups: mobile machines, for moistening dry factory-made mixtures of the akvatol type, and mobile thermally insulated machines, for transporting granular components and a hot solution of ammonium nitrate (filler) and mixing them directly during the charging operation. The fluid explosive is forced into the hole by compressed air or a pump.


Mekhanizcitsiia z.ariazhaniia VV. 2nd ed. Moscow, 1969.





A device that plugs into an AC outlet and delivers DC voltage to a rechargeable battery. See power adapter.
References in periodicals archive ?
The Chargers could play their home games in Carson in 2017, possibly at the StubHub Center, which is home to the MLS' LA Galaxy.
Apple, Samsung, and the USB consortium all support different power levels and have established incompatible methods of charger identification,” said Nathan Crum, one of Apparently Connected's founders.
The national Citizens Advice Consumer Service helpline has received a number of consumer complaints about chargers exploding or catching fire causing damage in consumers' homes.
The Chargers return three first-team All-CIF players in Hawaii-bound goalkeeper Sara Gralitzer, Casey Flacks and Clark, who has committed to UC Santa Barbara.
A first reaction to comparing costs is to erroneously compare the cost of a fast charger directly with the cost of conventional chargers.
According to Reuters, the mobile-phone charger uses an adapter system to work with a range of mobile devices, while the iPod charger comes with an iPod connector kit.
The three-stage charging rates for the Basic and Premium chargers allow for more efficient charging, according to the company.
Hanwa American, an importer and exporter of products including cement and seafood, has established a division here to handle all sales and marketing of the chargers and subsequent products.
The advantages of SCR-based chargers include their current control, adjustability, and voltage regulating characteristics.
As iPad users browse the web, send email and enjoy photos, videos, games and e-books, we wanted to provide a family of chargers that match the iPad's flexibility," said Walter Thornton, vice president of product management and supply chain of iGo.
CTSI tested 400 fake chargers for Apple devices and found only three of them had enough insulation to protect against electric shocks.
Here are the words of one of them, "This product was exactly what I've been looking for - a dual purpose charger for both my IPhone and IPad when I travel.