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Question

Trickle charging of a storage battery helps to:

This question was previously asked in
RRB ALP 2018 CBT 2 Fitter Question Paper (21-Jan-2019) (Shift 3)
The correct answer is
to attain a fully charged state

Understanding Trickle Charging Purpose

Trickle charging involves applying a very low electric current to a storage battery. This low current continuously replenishes the charge lost due to the battery's natural self-discharge over time.

Primary Function of Trickle Charging

The main goal of trickle charging is to counteract self-discharge. By constantly supplying a small amount of energy, it ensures that the battery remains in a state of maximum charge, effectively helping it to attain and maintain a fully charged state.

  • It prevents the battery voltage from dropping below optimal levels due to self-discharge during periods of inactivity.
  • This ensures the battery is always ready for use and operates at its peak performance.

Addressing Other Options

While trickle charging can indirectly help prevent sulphation by keeping the battery plates clean and charged, its primary purpose isn't solely sulphation prevention. It also doesn't significantly increase reserve capacity or directly maintain the electrolyte level (which is more related to topping up with distilled water).

Therefore, the most accurate description of what trickle charging helps achieve, aligning with its function of counteracting self-discharge, is ensuring the battery remains fully charged.

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Important Questions from Cells and Batteries

  1. Two ampere hour (Ah) is equal to how many Coulombs?

  2. In ideal case, the charging current for 200 Ah battery would be-

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  5. Which of the following statement is correct for primary cell with regards to secondary cell?

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