The correct answer is: D. more
Charging a sulphated battery produces more heat than charging a normal battery. This is because the sulphate crystals that have formed on the battery’s plates need to be broken down and dissolved in the electrolyte. This process requires energy, which is released as heat.
The amount of heat produced depends on the severity of the sulfation. A lightly sulphated battery may only produce a small amount of heat, while a heavily sulphated battery may produce a significant amount of heat.
In some cases, the heat produced by charging a sulphated battery can be so great that it can damage the battery. This is why it is important to charge a sulphated battery slowly and carefully.
Option A: No heat is incorrect because charging a sulphated battery does produce heat.
Option B: Very little heat is incorrect because charging a sulphated battery can produce a significant amount of heat.
Option C: Less heat is incorrect because charging a sulphated battery produces more heat than charging a normal battery.