A typical modern battery powered chair.

The various accessories that are powered by the battery might include:

The European brass industry continued to flourish into the post medieval period buoyed by innovations such as the 16th century introduction of water powered hammers for the production of battery wares.

However, since piston-engined aircraft rely upon magnetos to provide spark to their cylinders rather than a battery powered ignition coil system, this theory is not strongly convincing.

Unlike standard DECT, the low power variant enables this standard to be used in battery powered devices such as smartphone app controllable home automation or security systems.

The standard has been created to enable home automation, security, healthcare and energy monitoring applications that are battery powered and can easily connect to the web using the large number of existing DECT enabled modems and be managed using a smartphone app.

They may be powered by direct current ( for example a battery powered portable device or motor vehicle ), or by alternating current from a central electrical distribution grid.

Most electric lighting is powered by centrally generated electric power, but lighting may also be powered by mobile or standby electric generators or battery systems.

Kites can be used to carry light effects such as lightsticks or battery powered lights.

If a gas powered pump can drain a pool in 4 hours and a battery powered pump can drain the same pool in 6 hours, then it will take both pumps

Most large scale battery powered models use radio control.

However, unlike the Macintosh Portable which was essentially a battery powered desktop in weight and size, the light colors and decorative recessed lines did not seem appropriate for the scaled down designs.

Early telephones were locally powered, using either a dynamic transmitter or by the powering of a transmitter with a local battery.

During the 20th century, " common battery " operation came to dominate, powered by " talk battery " from the telephone exchange over the same wires that carried the voice signals.

Traditional phones connected to the older PSTN network do not experience that problem since they are powered by the telephone company's battery supply, which will continue to function even if there's a prolonged power black-out.

Even though Trabant doesn't have much of a history of being green, two German companies are trying to find investors to create the Trabant nT, an electric car that will be equipped with a 45 kW asynchronous motor powered with a lithium-ion battery.

The Accutron, an electromechanical watch developed by Max Hetzel and manufactured by Bulova beginning in 1960, used a 360 hertz steel tuning fork powered by a battery as its timekeeping element.

By the time Edison introduced his new alkaline battery, the gasoline powered car had so improved that electric vehicles were becoming increasingly less common, being used mainly as delivery vehicles in cities.

It reportedly had a range of 10 to 25 miles, powered by a lead acid battery.

The article mentions 25 % and 30 % discounts being offered to electric boaters by the UK Environment Agency and the Broads Authority and that battery powered vehicles have the carbon footprint of their petrol equivalents.

The power system of Mariner 2 consisted of two solar cell wings, one 183 cm by 76 cm and the other 152 cm by 76 cm ( with a 31 cm dacron extension ( a solar sail ) to balance the solar pressure on the panels ), which powered the craft directly or recharged a 1000 Watt-hour sealed silver-zinc cell battery.

The lead acid battery was the first practical secondary ( rechargeable ) battery that could have its capacity replenished from an external source.

A secondary cell, for example a rechargeable battery, is one in which the chemical reactions are reversible.

Most diesels also have a battery and charging system ; nevertheless, this system is secondary and is added by manufacturers as a luxury for the ease of starting, turning fuel on and off ( which can also be done via a switch or mechanical apparatus ), and for running auxiliary electrical components and accessories.

* Stanford Achievement Test Series, a battery of tests used for assessing academic knowledge of elementary and secondary students in the United States

Successive models of M1 have addressed this problem with battery packs or secondary generators to power the tank's systems while stationary, saving fuel by reducing the need to idle the main turbine.

At one point, Ni – Cd batteries accounted for 8 % of all portable secondary ( rechargeable ) battery sales in the EU, and in the UK for 9. 2 % ( disposal ) and in Switzerland for 1. 3 % of all portable battery sales.

Diagram of the charging of a secondary cell battery.

Battery manufacturers ' technical notes often refer to VPC ; this is volts per cell, and refers to the individual secondary cells that make up the battery.

All rechargeable batteries have a finite lifespan and will slowly lose storage capacity as they age due to secondary chemical reactions within the battery whether it is used or not.

As Iowa was passed in turn by Cristóbal Colón, the Spanish ship hit her with two shots from her secondary battery.

She therefore sailed with empty main turrets, albeit retaining her ten secondary battery.

The ships also had a mixed secondary battery of smaller guns, but were also intended to be used offensively.

Dreadnought's design did away with the offensive secondary battery, and replaced it with ten heavy caliber guns, and a smaller secondary battery to be used for self defense.

Often, ships have a primary battery for offensive purposes, and a secondary and sometimes even a tertiary battery for self defense.

An example of this was the German battleship Bismarck, which carried a primary battery of eight 15 inch ( 380mm ) guns, along with a secondary battery of twelve 5. 9 inch ( 150mm ) guns for defense against destroyers and torpedo boats, as well as a tertiary battery of various anti-aircraft guns ranging in caliber from 4. 1 inch ( 105mm ) to 20mm guns.

Many later ships used dual-purpose guns to combine the secondary battery and the heavier guns of the tertiary batteries, in order to simplify the design.

In Switzerland alkaline batteries account for 68 %, in the UK 60 % and in the EU 47 % of all battery sales including secondary types.

This can happen if the pump battery is discharged, if the insulin reservoir runs empty, the tubing becomes loose and insulin leaks rather than being injected, or if the cannula becomes bent or kinked in the body, preventing delivery.

In the case of a battery, charge separation that gives rise to a voltage difference is accomplished by chemical reactions at the electrodes ; a voltaic cell can be thought of as having a " charge pump " of atomic dimensions at each electrode, that is:

Killswitches are often located between crucial parts of the starting system, between the battery source and the coil, or the fuel pump.

Alternative power sources are a small electrical pump in the tool powered by a heavy duty rechargeable battery, and a hand-or foot-operated pump also connected to the tool directly.

It had a 1172 cc side-valve engine with thermocirculation radiator ( no pump ) and the ability to be started by a crank handle should the battery not have sufficient power to turn the starter motor running from the 6 Volt charging system.

In 1943 building began on a complex of underground tunnels and rooms, included shell stores, magazines, pump chamber and power house, plotting room and command post, and battery observation posts.

Percutaneous access and procedures frequently refer to catheter procedures such as PTA ballooning, stent delivery, filter delivery, cardiac ablation, and peripheral or neurovascular catheter procedures but also refers to a device that is implanted in the body, such as a heart pump ( LVAD ), and receives power through a lead that passes through the skin to a battery pack outside the body.

* A sump pump, either 1 / 3 or 1 / 2 horsepower ( 200 or 400 W ), either battery or electrically powered ( or both );

The advantages that an ionomeric pump could offer would be low voltage ( battery ) operation, extremely low noise signature, high system efficiency, and highly accurate control of flow rate.

However, many now use a pump of some sort, whether it is a hand pump, an electric pump plugged in or run by a battery pack, or a compressed gas tank containing air or nitrogen.

; Ideal voltage source, or ideal battery: A dynamic pump with feedback control.

The primary purpose of the hydraulic pump was putting the barrel into battery, ramming ammunition and charges, raising or lowering the rear spade, rapid course deflection adjustment by the gunner and rapid course elevation adjustments by the assistant gunner.