battery fundamentals

Question 1

The first step in battery service is to

Answer 1

Ensure you have safety glasses or a face shield

Question 2

Battery negative plates and positive plates with separators between them are called a

Answer 2

Element

Question 3

What are the three main functions of a battery

Answer 3

Supply’s power to operate the starter
Stabilizes the electrical system by absorbing voltage surges
and supply’s power to accessories when the charging system cant

Question 4

A maintenance free battery can be

Answer 4

visual inspected and load tested for reuse

Question 5

Parallel connections within the battery result in

Answer 5

Same voltage with increased current production

Question 6

The electrolyte in a led acid battery is made up of water and ?

Answer 6

sulfuric acid

Question 7

Each fully charged battery cell produces approximately ____ volts

Answer 7

2.1 volts

Question 8

When a battery is discharged

Answer 8

All plates have changed to lead sulfate (PbSO4)

Question 9

Acid spills can be neutralized by

Answer 9

Baking soda and water

Question 10

When removing a battery from a vehicle for servicing, always remove the

Answer 10

Negative cable first and install last

Question 11

Before performing a battery load test, the battery must be charged at least

Answer 11

75%

Question 12

An open circuit test is performed on a battery to determine

Answer 12

The state of charge of the battery

Question 13

If a battery load test is performed on a 12v battery at room temperature the final voltage should be

Answer 13

Greater than 9.6

Question 14

When servicing a battery with tapered terminals, three necessary tools are:

Answer 14

Battery pliers
terminal puller
terminal spreader

Question 15

A fully charged battery is best stored

Answer 15

In a cool or cold location

Question 16

If a battery is stored in a discharged condition it

Answer 16

Will freeze easily, will become sulphated and may not recharge

Question 17

If a battery in a stored vehicle discharges over a period of three days

Answer 17

There might be a parasitic drain in the vehicle

Question 18

A battery will supply the most power when it is

Answer 18

at room temperature

Question 19

Prior to changing a battery it is most important that

Answer 19

The plates are submerged in electrolyte

Question 20

The time required to recharge a battery depends upon

Answer 20

The charger amperage output, the state of charge of the battery and the battery’s rated capacity

Question 21

When boost charging a vehicle the

Answer 21

ground cable should be connected to the boost vehicles engine block or frame last

Question 22

The total current carrying capacity of a multiple series battery groups

Answer 22

Remains the same with the addition of every battery

Question 23

When replacing batteries in groups you should

Answer 23

Plan ahead and replace batteries of the same age, type, capacity and manufacturer

Question 24

A battery has what _____ volts charge when at 0% and ____ volts when fully charged?

Answer 24

11. 6 when at 0%

12. 6 when at 100%

Question 25

What is the difference between a battery element and cell?

Answer 25

Element is positive plates, negative plates, and separators.

It becomes a cell when the element is submerged in electrolyte solution