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 TM 55-1905-242-14
0092 00
TESTING (continued)
2.
Remove the battery filler caps (1) and check the liquid level of each battery cell. The liquid level should be at the bottom
of the split ring on each cell.
NOTE
To get an accurate reading, the liquid of the battery cell should be at normal height when
the battery is tested. Any water added to the battery should be thoroughly mixed with
the electrolyte by charging the battery before testing. If the battery is dry, and a field
charge is not permitted, replace defective battery.
3.
If necessary, add distilled water to the battery and bring it to its normal level.
4.
Charge the battery to mix the water with the existing electrolyte.
5.
Insert the tip of the tester into a cell and draw enough electrolyte to float the glass hydrometer in the barrel of the tester.
6.
Take and record the electrolyte specific gravity reading.
7.
Check the tester thermometer. Record the thermometer reading along with the specific gravity reading.
4
2
1
3
5
8.
Return the electrolyte to the battery cell and install the battery caps (1).
9.
Repeat steps 5-8 for all the other battery cells.
10. If the temperature of the electrolyte is above or below 80 degrees Fahrenheit, the specific gravity reading must be
adjusted as follows:
a.
For every 10 degrees Fahrenheit below 80 degrees Fahrenheit, subtract four specific gravity units (0.004) from the
electrolyte reading taken.
b.
For every 10 degrees above 80 degrees Fahrenheit, add four specific gravity units (0.004) to the electrolyte reading
taken (refer to the examples in this work package).
0092 00-2
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