What among the following is the maximum voltage for a fully-charged battery in two-wheelers?

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RRB ALP Mechanic Diesel 21 Jan 2019 Official Paper (Shift 1)

Answer 1

Explanation:

Battery charging:

A discharged battery in good condition can be charged and returned to service.
Many types of batteries are in use, but all chargers operate on the same principle.
They apply an electrical pressure that forces current through the battery to reverse the electrochemical action in the cells.
The amount of charge a battery receives is equal to the rate of charge, in amperes, multiplied by the amount of time, in hours, that the charge is applied.
As an example, a battery charged at the rate of 5A for a period of 5 hours would receive a 25 ampere-hour charge.
A typical 12 V healthy motorcycle/two-wheeler battery will show about 12.4 Volts when at rest or the motorcycle engine is off.
With the engine on and the battery fully charged, it should show around 14.4 volts max for the voltage regulator.
The battery is fully charged when over a two-hour period at a low charging rate in amperes all cells are gassing freely and no change in specific gravity occurs.
For the most satisfactory charging, lower charging rates in amperes are recommended.
Slow charging consists of charging a battery at a rate of about 5A for a time sufficient to bring the specific gravity of the electrolyte to its highest reading.
Slow charging may require from 12 to 24 hours of time.