Technician A is correct because the type of NiMH cell is cylindrical as well as rectangular not triangular.
Recent years have seen a rise in the use of nickel-metal hydride (NiMH) batteries in electric vehicle applications because to their superior performance and lack of oxide characteristics. Compared to nickel-cadmium batteries, nickel-metal hydride batteries can store more energy. The positive electrode, whose active component is nickel hydroxide, and the negative electrode, which is a metal hydride combination, make up the negative electrode. These batteries cost nearly five times as much as lead-acid batteries but have an energy density of more than 70 Wh/kg and a power density of more than 200 W/kg. In the event of an 80% deep discharge, the battery has over 600 full charge/discharge cycles, and an 80% rapid recharge takes roughly 35 minutes.
Since the 1700s, batteries have been in use, and now they come in a wide range of sizes and designs. The jar design was the first battery shape. Large F cells were first introduced in 1896, and D cells followed in 1898. The first small-size batteries were C cells, which were released in 1900. The still-common AA batteries were next produced in 1907. Currently, batteries are mostly available in the following shapes:
- Cylindrical.
- Button.
- Pouch Cells.
- Rectangular or Prismatic Cells.