No, a lead storage battery is not a primary cell.
**Lead Storage Battery**:
- Also known as a lead-acid battery.
- It is a type of secondary (rechargeable) cell.
- It can be recharged and used multiple times.
- Commonly used in vehicles, UPS systems, and for energy storage.
**Primary Cell**:
- A type of battery that is designed to be used until it is depleted and then discarded.
- It cannot be recharged.
- Examples include alkaline batteries, zinc-carbon batteries, and lithium primary cells.
So, the lead storage battery, being rechargeable, falls into the category of secondary cells, not primary cells.