nitial Charging Operation. Place the battery on charge at the
ampere rate given in the following table. The total initial charge
must be for fifty-two hours, but at no time permit the electrolyte
temperature to rise above 115 degrees Fahrenheit. If the temperature
should reach 115 degrees Fahrenheit, take the battery off the line and
allow the electrolyte to cool, but be sure that the total of fifty-two
hours actual charging at the ampere rate specified is completed.
Initial Charge---52 Hours
Plates Type of
per Cell Plate
AHS WHN RHN SHC BHN JFN GM CLN KPN
-------- --- --- --- --- --- --- --- --- ---
3 1.5
5 2 2 2.5 3
7 3 3 3.5 4 3 5
9 4 4 5 5 7
11 5 5 6 7 7.5 5 9
13 6 6 7 8 9 6 10.5 10.5
15 7 7 9 9.5 10.5 7 12
17 10 12 9
19 9 9 11 12 9
The nominal battery voltage and the number of plates per cell is
indicated by the Prest-O-Lite type designations, i. e.: 613 RHN
denotes 6 volts, 13 plates per cell or 127 SHC denotes 12 volts, 7
plates per cell.
5. The electrolyte density at the end of fifty-two hours charge should
be near 1.290 specific gravity. A variation between 1.285 and 1.300 is
permissible. If, after fifty hours of the initial charge, the
electrolyte density of any of the cells is outside these limits,
adjustment should be begun while still charging. For those cells in
which the density is higher than 1.300 specific gravity replace some
of the electrolyte with distilled water. In those cells where the
density is lighter than 1.285 specific gravity replace some of the
electrolyte with previously prepared electrolyte of 1.400 specific
gravity. Wait until the cells have charged one hour before taking
readings to determine the effect of adjustment, which, if not
accomplished, should be attempted again as before. Practice Will
enable the attendant to estimate the amount of electrolyte necessary
to replace in order to accomplish the proper density desired-at the
end of initial charge.
6. Following the completion of the fifty-two hour charge, if there is
time to do so, it is good practice to put the battery through a
developm
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