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2. Battery holder - Wikipedia

   en.wikipedia.org/wiki/Battery_holder

   Battery types such as the 9-volt have snap-on contacts. Battery holders for zinc-air batteries must not be completely air-tight since approximately 1 litre of air is required per ampere-hour of discharge per cell. The battery holder may include a valve integrated with the device power switch to allow air to be admitted when the device is ...

3. Automobile auxiliary power outlet - Wikipedia

   en.wikipedia.org/wiki/Automobile_auxiliary_power...

   For the 12 volt systems, the center contact is the positive terminal and the shell is the negative terminal. Most automobiles connect the negative terminal to the frame of the vehicle (negative ground). 12 volt auto connectors are made to comply with a standard by Underwriters Laboratories for safety. UL2089 was developed to cover the ...

4. Simmons Hardware Company Warehouse - Wikipedia

   en.wikipedia.org/wiki/Simmons_Hardware_Company...

   The Simmons Hardware Company Warehouse, also known as the Battery Building, [2] is a historic warehouse located in Sioux City, Iowa that is on the National Register of Historic Places. [1] The six-story building covered a whole block and its construction was supervised by Frank Bunker Gilbreth, Sr. , the time and motion study pioneer.

5. Automotive battery - Wikipedia

   en.wikipedia.org/wiki/Automotive_battery

   A typical 12 V, 40 Ah lead-acid car battery. An automotive battery, or car battery, is a rechargeable battery that is used to start a motor vehicle.. Its main purpose is to provide an electric current to the electric-powered starting motor, which in turn starts the chemically-powered internal combustion engine that actually propels the vehicle.

6. Aluminium–air battery - Wikipedia

   en.wikipedia.org/wiki/Aluminium–air_battery

   The problem can be avoided by storing the electrolyte in a tank outside the battery and transferring it to the battery when it is required for use. These batteries can be used as reserve batteries in telephone exchanges and as backup power sources. Another problem is the cost of materials that need to be added to the battery to avoid power ...

7. Battery pack - Wikipedia

   en.wikipedia.org/wiki/Battery_pack

   A power bank is a portable device consisting of a battery, a charger to interface battery with charging power source and an output interface to provide desired output voltage. [10] Power banks are made in various sizes and typically based on lithium-ion batteries. A power bank contains battery cells and a voltage converter circuitry.