Topic: Electrical Materials and Batteries
Identify the correct sequence of stages in charging of a Lead-Acid battery.
- A. Constant Current, Topping, Float
- B. Topping, Constant Current, Float
- C. Float, Topping, Constant Current
- D. Float, Constant Current, Topping
Answer: A. Constant Current, Topping, Float
Explanation: The standard charging profile for a lead-acid battery involves three stages: First, a "Constant Current" (Bulk) charge where the majority of capacity is restored. Second, a "Topping" (Absorption/Constant Voltage) charge to reach full capacity. Finally, a "Float" charge to maintain the battery at 100% state of charge and compensate for self-discharge.