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Electrical & Electronics Engineering vocabulary · Power Systems and Electrical Machines

Battery

Meaning in electrical & electronics engineering, with examples

/ˈbætəri/nounCore term

In electrical & electronics engineering, battery means: One or more electrochemical cells that store energy and supply it as DC. Capacity is given in ampere-hours (Ah) or milliampere-hours (mAh), and the voltage depends on the cell chemistry.

In Turkish: batarya, akü, pil

How it is used

Used in portable devices, vehicles, UPS systems and energy storage. A battery is charged, discharged, drained or replaced. Engineers talk about lithium-ion and lead-acid batteries, battery life, state of charge (SoC) and the battery management system (BMS).

Example sentences

  1. The battery lasts about eight hours with the screen on.

  2. The UPS batteries are four years old and can no longer carry the load for ten minutes.

Common collocations

  • battery life
  • lithium-ion battery
  • charge the battery
  • battery pack
  • battery management system
  • DCShort for direct current: current that flows in one direction only, usually at a steady value. Batteries, solar panels and most electronic circuits work with DC.
  • in seriesConnected one after another along a single path, so the same current flows through each component. Resistances connected in series add up.
  • in parallelConnected across the same two points, so each component has the same voltage and the current divides between them. The total resistance becomes lower.
  • inverterA power electronic device that converts DC into AC. Inverters connect solar panels and batteries to the grid, supply AC loads in UPS systems and produce variable-frequency AC in motor drives.

More terms: Power Systems and Electrical Machines

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