The main characteristics of a maintenance free (MF) battery is that

Question

Options:

A . A maintenance free battery has a relatively short shelf life when compared with standard batteries

B . Recharging of a maintenance free battery is neither required nor possible

C . A maintenance free battery requires little maintenance during normal use and it is sufficient to add water instead of an electrolyte containing sulphuric acid

D . Since it is sealed, the water in maintenance free battery is not lost through evaporation thus accordingly it is not necessary to top up the cells with water

Answer: Option D

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