Summary of week 2

Batteries.
The battery consist of 6 cells. half is negative and half is positive. each of them stores 2.1V so in total a charge battery should be 12.6V.

State of Charge
100% = 12.6v
75% = 12.45v
50% = 12.3v
25% = 12.15v

Load test
Divide CCA by 2 and voltage should stay above 12.

High rate discharge test.
Should get the reading of 0.01 - 0.02 if more than 0.06 than something must be on.

Always recycle the battery because of acid

Avoid sparks and flames around the battery and dont over charge it as it can explode.

Positive plate - Lead peroxide to lead sulphate
Negative plate - sponge lead to lead sulphate

Battery corrosion must be cleaned with hot water.

Use a voltmeter or hydrometer to check state of charge.

That is the summary of week 2 which was applied in the theory and practical test.