Exide Technologies Section 93.10 - Manual (Page 15)

should be taken after battery has been returned to normal
float for one week. These will serve as an updated basis for
comparison with future readings.
F. Record dates of any equalizing charges as well as total
quantity of water when added. Also record any mainte-
nance and/or testing performed.
The foregoing frequency of record taking may have to
be modified somewhat to suit local requirements.
See Page 16 for Battery nameplate
SECTION 15
15.0 Water Additions
There are two conditions in the operation of batteries which
cause a reduction in the amount of water in the electrolyte,
resulting in a lowering of the electrolyte level. These are
normal evaporation and the conversion of water into hydro-
gen and oxygen gases by the charging current. These gases
are liberated through the cell vents. Periodically, this water
loss must be replaced with approved or distilled water to
maintain the electrolyte level at the mid point between the
high and low level lines.
If suitability of the local water supply for use in storage bat-
teries is questionable, contact your nearest GNB represen-
tative for instructions regarding procedure for submitting a
sample for analysis. A report will be rendered as to whether
or not the water is suitable.
If water is to be stored in containers they should be clean
and of non-metallic material; such as: glass, hard rubber,
porcelain or plastic.
Infrequently used water lines should be purged to remove
accumulated impurities, thus preventing their introduction
into the battery.
Water additions should be scheduled prior to an equalizing
charge so that mixing with the electrolyte occurs. Also at
unheated installations, arrange water additions when bat-
tery temperature is above 50°F (10°C).
Never introduce “battery additives” into a GNB battery.
15.1 Water Purity
The maximum allowable limits of impurities in the water
used in GNB stationary batteries shall be as follows:
Total solids 500 ppm
Fixed solids 350ppm
Organic & volatile matter 200ppm
Iron as Fe 4.0 ppm
Manganese as Mn 0.007 ppm
Nitrates as N02 15.0 ppm
Ammonia as NH4 5.0 ppm
Chlorides as CL 25.0 ppm
Distilled water or deionized water satisfying the above
requirements may be used.
SECTION 16
16.0 Tap Connections
It is not recommended that tap connections be used on a
battery, as possible unbalance between groups of cells may
result. This can cause overcharging of the untapped group
of cells and undercharging of the tapped cells supplying the
load. This condition can cause unsatisfactory operation and
reduced battery life.
SECTION 17
17.0 Temporary Nonuse
An installed battery that is permitted to stand idle for a peri-
od of time should be treated in the following manner. With
the battery on normal float, add approved water to cells to
bring electrolyte level to the high level line. Give the battery
an equalizing charge per Section 10.2. Following comple-
tion of the equalizing charge, open connections at the bat-
tery terminals to separate charger and load circuit from bat-
tery.
Every three months for lead antimony and every six months
for lead calcium, temporarily connect battery to charger and
give it an equalizing charge.
To return to normal service, re-connect all open connec-
tions, give equalizing charge and then return battery to nor-
mal float voltage.
SECTION 18
18.0 Battery Cleaning
18.1 Styrene Acrylonitrile Containers
with Butadiene Styrene Covers
and PVC Containers and Covers
Periodically, clean cell jars and covers with a water damp-
ened cloth to remove accumulated dust. Cell parts damp
with electrolyte should be neutralized with baking soda-
water solution (1 lb. of soda per gallon of water). Apply with
cloth dampened with the solution, making sure none is
allowed to enter the cell. Continue to neutralize until fizzing
action ceases, then wipe area with a water dampened cloth
to remove soda solution. Wipe dry with a clean cloth.
18.2 Polycarbonate Containers
and Covers
Cells with containers and covers made from polycarbonate
plastic should be cleaned ONLY with a WATER dampened
CAUTION
DO NOT CLEAN PLASTIC CELL JARS OR
COVERS
WITH SOLVENTS, DETER-
GENTS, OILS OR SPRAY TYPE CLEAN-
ERS, AS THESE MATERIALS MAY CAUSE
CRAZING AND CRACKING OF THE PLAS-
TIC MATERIALS
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