EnerSys PowerSafe Data Safe Operation & Maintenance Manual page 51

Add filling electrolyte, where necessary, so all cells are at the high level line when the activating
charge is about two-thirds complete.
At the completion of the charge, the specific gravity of all cells, corrected to 77
should be within the range indicated on the nameplate. At the end of charge, if the specific
gravity is higher, remove some electrolyte and replace with water. If lower, remove some
electrolyte and replace with electrolyte of higher specific gravity. At some remote locations,
electrolyte with higher specific gravity may not be available. In this case, adjust the level with
electrolyte instead of water. Measure the specific gravity and keep adjusting the level with
electrolyte until a normal specific gravity reading is achieved.
% By Weight
Organic Matter
Platinum (Pt)
Sulfurous Acid (SO )
2
Iron (Fe)
Copper (Cu)
Zinc (Zn)
Arsenic (As)
Antimony (Sb)
Selenium (Se)
Nickel (Ni)
Manganese (Mn)
Nitrates (NO )
3
Ammonium (NH )
4
Chloride (Cl)
Fixed Residue
For test method — See Federal Specification 0S-801 (latest issue)
www.enersys.com
TABLE 12.2
ELECTROLYTE QUALITY
DILUTE SULFURIC ACID (H
MAXIMUM IMPURITIES
1.250 – 1.300
Sp. Gr.
None
None
0.0016
0.0020
0.0001
0.0016
0.00004
0.00004
0.0008
0.00004
0.000008
0.0002
0.0004
0.0004
0.012
Publication No. US-FL-IOM-002 January 2007 Page
SO )
2 4
1.170 – 1.215
Sp. Gr.
None
None
0.0013
0.0016
0.00008
0.0013
0.00003
0.00003
0.0006
0.00003
0.000006
0.00016
0.0003
0.0003
0.009
o o
F (25 C),
43