E - Battery Fundamentals and Service Flashcards
The first step in battery service is to:
Ensure that you are wearing safety glasses or a face shield.
Battery negative plates and positive plates with separators between them are called a:
Element.
A battery:
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.
A maintenance-free battery:
Can be visually inspected and load tested for re-use.
Parallel connections within the battery result in:
Same voltage with increased current production.
The electrolyte in a lead-acid battery is made up of water and:
Sulphuric acid.
Each fully charged battery cell produces approximately:
2.1 volts.
When a battery is discharged:
All plates have changed to lead sulphate (PbSO4).
Acid spills can be neutralized with a mixture of:
Baking soda and water.
When removing the battery from a vehicle for servicing, always remove the:
Negative (ground) cable first and install it last.
Before you perform a battery load test, the battery must be at least:
75% charged.
An open circuit voltage test performed on a battery to determine:
The state of charge of the battery.
If a battery load test is performed on a 12 volt battery at room temperature, the final voltage should be:
Greater than 9.6 volts.
When servicing a battery with tapered terminals, three necessary tools are:
Battery pliers, a terminal puller and a terminal spreader.
A fully charged battery is best stored:
In a cool or cold location.
If a battery is stored in a discharged condition, it:
Will freeze easily, will become sulphated, may not recharge.
If the battery in a stored vehicle discharges over a period of three days:
There might be a parasitic drain in the vehicle.
A battery will supply the most when it is:
At room temperature.
Prior to charging a battery, it is most important that:
The plates are submerged in the electrolyte.
The time required to recharge a battery depends on:
The charger amperage output, the battery’s state of charge when charging begins, and the battery’s rated capacity.
When boost charging a vehicle, the:
Ground cable should be connected to the boosted vehicle engine block or frame last.
The total current carrying capacity of multiple series battery groups:
Remains the same with the addition of every battery.
When replacing batteries in groups, you should:
Plan ahead and replace batteries of the same age, type, capacity and manufacturer.
