Question

The rechargeable battery used in a mobile phone hand set is usually ______.

Options

• lead ion battery

• sodium ion battery

• hydrogen ion battery

• lithium ion battery

Answer 1

The rechargeable battery used in a mobile phone hand set is usually lithium ion battery.

Explanation:

Mobile handsets require batteries that are lightweight, compact, and highly efficient. Lithium-ion batteries provide a very high energy density, meaning they can store a large amount of power relative to their small size and light weight. Additionally, they lack a memory effect and support hundreds of charge cycles, making them ideal for daily smartphone use.