Cushman Hauler 800XE Owner's Manual page 51

Read all of SAFETY and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
A battery being charged will 'gas' with most gassing occurring
at the end of the charging cycle. This gas is hydrogen which is
lighter than air. Water and sulphuric acid droplets will be car-
ried out of the battery vents by the hydrogen gas, however,
this loss is minimum. If the electrolyte level is high, the elec-
trolyte will block the vent tube and the gas will push it out the
vent tube and battery cap. The water will dry but the sulphuric
acid will stay and damage the vehicle components and the
storage facility floor. Sulphuric acid loss will weaken the
amount of acid within the electrolyte and decrease the life of
the battery.
Over the life of the battery, a large amount of water is used.
The water used must be clean and without contamination.
Water that is not clean decreases the life of the battery by
reducing the chemical reaction. Use distilled water or filtered
water only. Test water that is not distilled water and filter if
needed. Refer to the water purity table for requirements.
Hand held watering devices available at an automotive parts
store, or automatic watering devices like the one included in
the E-Z-GO Battery Maintenance Kit (P/N 25587-G01) can be
used with an approved water supply. These watering devices
are accurate, easy to use and allow for fast fill. They also
keep the correct electrolyte level within the battery cells.
The watering device must only be used if the electrolyte
level is less than 1/2" (13 mm) above top of plates.
Expansion
Space
1/4" to 3/8"
(6 mm to 10mm)
Plates
Electrolyte level should be at least 1/2" (13mm) above the
plates and 1/4" to 3/8" (6 to 10 mm) below vent
Correct Electrolyte Level
Impurity
Color
Suspended
Total Solids
Calcium & Magnesium Oxides
Iton
Ammonia
Organic & Volatile Matter
Nitrites
Nitrates
Chloride
Watering gun similar to the type included in the E-Z-GO
Pure Water
Owner's Guide
MAINTENANCE
Water Purity Table
Battery Maintenance Kit
Valve consistently
fills to a predetermined
level
Electrolyte Level
Single Battery Cell
B
Vent Cap
Gas Vent
Vent
1/2" (13 mm)
Parts Per
Million
Clear
Trace
100
40
5
8
50
5
10
5
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