Page 146 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

Battery is fully charged when over at which our period at a low charging rate in amperes all cells are gassing freely
and no change in specific gravity occurs. For the most sat is factory charging, the lower charging rates in amperes
are recommended.

Full charge specific gravity is 1.260-1.280 corrected for temperature with electrolyte level at split ring.

TASK 2: Constant current method
1 Connect all the batteries in series as shown in Fig 1.

Fig 1

2 Connect the charger to batteries.
3 Set the voltage rate in charger according to no. of batteries.

4 Charge the battery.
5 Switch off the battery charger
6 Test the specific gravity of each battery cell.
7 Record the reading inTable.1
Table 1

Battery Cell No.
S. No. 1 2 3 4 5 6

1
2
3
4

TASK 3: Constant Voltage method (Fig 1)
1 Connect all the batteries in parallel as shown in Fig 1
2 Connect the charger to batteries.

3 Set the current rate by varying the voltage to be charged.
4 Charge the battery till full charging
5 Switch off the battery charger
6 Record the reading.

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CITS : Automotive - Mechanic Diesel - Exercise 8.3