Exam Question
(a) Sketch and describe the working of a lead acid battery. (12)
(b) What routine maintenance is carried out on these batteries? (4)
Class 4 (4th Engineer)
MET
📅 Feb 2023
Reference Answer
### (a) Sketch and Describe the Working of a Lead-Acid Battery (12 Marks)
#### 1. Introduction and Principle
A lead-acid battery is a secondary (rechargeable) electrochemical cell that converts chemical energy into electrical energy during discharge and vice-versa during charge. Each individual cell produces a nominal voltage of approximately 2.1 Volts. Multiple cells are connected in series within a single casing to achieve higher voltages (e.g., a 12V battery contains 6 cells).
#### 2. Construction
#### 1. Introduction and Principle
A lead-acid battery is a secondary (rechargeable) electrochemical cell that converts chemical energy into electrical energy during discharge and vice-versa during charge. Each individual cell produces a nominal voltage of approximately 2.1 Volts. Multiple cells are connected in series within a single casing to achieve higher voltages (e.g., a 12V battery contains 6 cells).
#### 2. Construction
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