E - Battery Fundamentals and Service

Question 1

The first step in battery service is to:

Answer 1

Ensure that you are wearing 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

A battery:

Answer 3

Supplies power to operate the starter motor, stabilizes the vehicle electrical system by absorbing voltage surges, and supplies power to accessories when the charging system cannot supply the demand.

Question 4

A maintenance-free battery:

Answer 4

Can be visually inspected and load tested for re-use.

Question 5

Parallel connections within the battery result in:

Answer 5

Same voltage with increased current production.

Question 6

The electrolyte in a lead-acid battery is made up of water and:

Answer 6

Sulphuric acid.

Question 7

Each fully charged battery cell produces approximately:

Answer 7

2.1 volts.

Question 8

When a battery is discharged:

Answer 8

All plates have changed to lead sulphate (PbSO4).

Question 9

Acid spills can be neutralized with a mixture of:

Answer 9

Baking soda and water.

Question 10

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

Answer 10

Negative (ground) cable first and install it last.

Question 11

Before you perform a battery load test, the battery must be at least:

Answer 11

75% charged.

Question 12

An open circuit voltage test 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 12 volt battery at room temperature, the final voltage should be:

Answer 13

Greater than 9.6 volts.

Question 14

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

Answer 14

Battery pliers, a terminal puller and a 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, may not recharge.

Question 17

If the 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 when it is:

Answer 18

At room temperature.

Question 19

Prior to charging a battery, it is most important that:

Answer 19

The plates are submerged in the electrolyte.

Question 20

The time required to recharge a battery depends on:

Answer 20

The charger amperage output, the battery’s state of charge when charging begins, and the battery’s rated capacity.

Question 21

When boost charging a vehicle, the:

Answer 21

Ground cable should be connected to the boosted vehicle engine block or frame last.

Question 22

The total current carrying capacity of 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.