Special Battery Types (Mod. 2 pt6)

Resumen del Recurso

Pregunta Respuesta
The _______ battery is a very popular type of rechargeable battery used in many types of industrial tools and systems. nickel cadmium
The abbreviation for nickel cadmium is _____. NiCad
Almost all cordless or battery-powered tools use _____ battery packs containing 2 or more cells. NiCad
The positive plate of a NiCad cell is made of _______. nickel hydroxide
The negative plate of a NiCad cell is made of _______. cadmium hydroxide
NiCad cells are often connected together to make _______. battery packs
The _____ of a battery is the amount of current the battery can deliver in one hour. C rate (Ex: the C rate of a 1 AH battery is 1 A)
_______ batteries are usually charged with a constant current of 1/10 of the C rate. Standard charge (Ex: If the C rate is 1 A, then the charging current is 0.1 A because 0.1 x 1 A=0.1 A)
A _______ battery is usually charged with a constant current of 1.0 times the C rate. rapid charge (Ex: a 1 AH battery 1 A in one hour)
When charging a rapid or standard charge battery, charging time is increased by ____ due to energy loss through heat. 50%
The high-temperature NiCad battery has the _____ recharge rate. slowest
_______ NiCad batteries are used as backup power supplies in computer memory board circuits. High-temperature
_______ use very low current to recharge a cell or battery pack and may be left on the cell or pack indefinitely. Standard chargers
Standard chargers are also called _____ chargers. trickle
If you try to recharge a NiCad battery before it is fully discharged, it may only recharge to a small fraction of its possible charge level. This is known as a "_____" problem. memory
A fully _____ battery will be able to accept a full charge. discharged
_______, like NiCad cells, are used as backup power supplies for memory circuit boards, alarm systems, smoke alarms, watches, and pacemakers. Lithium cells
Lithium batteries have a high discharge rate. This is known as a _______. high energy density
_______ is the measure of how much energy a battery contains in proportion to its weight. Energy density
There are two types of lithium cells: the ________ cell and the ________ cell. poly-carbon monofluoride, manganese dioxide
When a lithium cell is put in a computer's memory circuit, a _______ and a _____ are also put in the circuit. These components prevent the main power supply from trying to charge the battery when the computer is drawing power from its own DC power supply. blocking diode, resistor
Lithium batteries with a _____ electrolyte are rechargeable. solid
The ______ type of battery is used in laptop and notebook computers. zinc/air
The type of small lead/acid battery that's used in backup systems in computers is called a _________. These batteries are maintenance-free and don't have vent holes. Instead the internal gases are chemically recombined into their original compounds. uninterruptable power supply
The abbreviation for "uninterruptable power supply" is ____. UPS
A NiCad battery can go through more than ____ charging and discharging cycles before it can no longer produce electricity. 100
A standard lithium cell has an output voltage of ____. 3 V
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