1-57
Figure 1-22.—IC identification and pin placement.
Batteries
The two fundamental types of batteries are the PRIMARY CELL and SECONDARY CELL.
Primary cells are those commonly used in flashlights and some portable, hand-held test equipment.
Common sizes and part numbers are:
SIZE
PART NUMBER
AA
BA58
C
BA42
D
BA30
Secondary cell batteries are the type used in automobiles. They are rechargeable.
Safety precautions concerning charging, handling, and storage of batteries can be found in the
Electronics Installation and Maintenance Book (EIMB), General, NAVSEA SE000-00-EIM-100. Stock
